tests: add dbus smoke + stop-launching regression

CMakeLists.txt

@@ -26,6 +26,7 @@ include(ECMPoQmTools)
 include(ECMDeprecationSettings)
 include(ECMQmlModule)
 include(ECMAddAppIcon)
+include(CTest)
 include(FeatureSummary)
 
 ecm_setup_version(${PROJECT_VERSION}
@@ -104,6 +105,8 @@ find_package(KF6 ${KF_MIN_VERSION} REQUIRED COMPONENTS
     WindowSystem
 )
 
+find_package(KF6Auth ${KF_MIN_VERSION} QUIET)
+
 find_package(KF6KirigamiAddons 1.0.0 REQUIRED)
 
 qt_policy(SET QTP0001 NEW)
@@ -112,6 +115,10 @@ add_subdirectory(src)
 add_subdirectory(src/krunner)
 add_subdirectory(icons)
 
+if (BUILD_TESTING)
+    add_subdirectory(tests)
+endif()
+
 ki18n_install(po)
 
 install(FILES org.kde.alakarte.desktop DESTINATION ${KDE_INSTALL_APPDIR})

src/CMakeLists.txt

@@ -9,6 +9,7 @@ add_executable(alakarte
     game.cpp
     gamepadmanager.cpp
     inputmanager.cpp
+    inputserviceclient.cpp
     mediamanager.cpp
     runnermanagerclient.cpp
     screenshotmodel.cpp
@@ -122,6 +123,7 @@ ecm_add_qml_module(alakarte URI org.kde.alakarte
         game.h
         gamepadmanager.h
         inputmanager.h
+        inputserviceclient.h
         platformimporter.h
         steamimporter.h
         lutrisimporter.h
@@ -142,3 +144,5 @@ install(TARGETS alakarte ${KDE_INSTALL_TARGETS_DEFAULT_ARGS})
 add_subdirectory(gamecenter)
 
 add_subdirectory(runner)
+
+add_subdirectory(input)

src/app.cpp

@@ -28,6 +28,7 @@ App::App(QObject *parent)
     , m_gameModel(new GameModel(this))
     , m_launcher(new GameLauncher(this))
     , m_runnerManager(new RunnerManagerClient(this))
+    , m_inputService(new InputServiceClient(this))
     , m_steamGridDB(new SteamGridDB(this))
     , m_mediaManager(new MediaManager(this))
     , m_config(new Config(this))
@@ -175,6 +176,11 @@ RunnerManagerClient *App::runnerManager() const
     return m_runnerManager;
 }
 
+InputServiceClient *App::inputService() const
+{
+    return m_inputService;
+}
+
 SteamGridDB *App::steamGridDB() const
 {
     return m_steamGridDB;

src/app.h

@@ -11,6 +11,7 @@
 #include "config.h"
 #include "gamelauncher.h"
 #include "gamemodel.h"
+#include "inputserviceclient.h"
 #include "mediamanager.h"
 #include "runnermanagerclient.h"
 #include "steamgriddb.h"
@@ -24,6 +25,7 @@ class App : public QObject
     Q_PROPERTY(GameModel *gameModel READ gameModel CONSTANT)
     Q_PROPERTY(GameLauncher *launcher READ launcher CONSTANT)
     Q_PROPERTY(RunnerManagerClient *runnerManager READ runnerManager CONSTANT)
+    Q_PROPERTY(InputServiceClient *inputService READ inputService CONSTANT)
     Q_PROPERTY(SteamGridDB *steamGridDB READ steamGridDB CONSTANT)
     Q_PROPERTY(MediaManager *mediaManager READ mediaManager CONSTANT)
     Q_PROPERTY(Config *config READ config CONSTANT)
@@ -37,6 +39,7 @@ public:
     GameModel *gameModel() const;
     GameLauncher *launcher() const;
     RunnerManagerClient *runnerManager() const;
+    InputServiceClient *inputService() const;
     SteamGridDB *steamGridDB() const;
     MediaManager *mediaManager() const;
     Config *config() const;
@@ -78,6 +81,7 @@ private:
     GameModel *m_gameModel;
     GameLauncher *m_launcher;
     RunnerManagerClient *m_runnerManager;
+    InputServiceClient *m_inputService;
     SteamGridDB *m_steamGridDB;
     MediaManager *m_mediaManager;
     Config *m_config;

src/gamecenter/CMakeLists.txt

@@ -13,9 +13,40 @@ add_executable(alakarte_gamecenter
 
 target_link_libraries(alakarte_gamecenter PRIVATE
     Qt6::Core
+    Qt6::Concurrent
     Qt6::DBus
+    KF6::CoreAddons
+    KF6::DBusAddons
 )
 
+if (KF6Auth_FOUND)
+    target_compile_definitions(alakarte_gamecenter PRIVATE
+        ALAKARTE_HAVE_KAUTH
+    )
+    target_link_libraries(alakarte_gamecenter PRIVATE
+        KF6::AuthCore
+    )
+
+    add_executable(alakarte_gamecenter_helper
+        gamecenterkauthhelper.cpp
+    )
+    target_link_libraries(alakarte_gamecenter_helper PRIVATE
+        Qt6::Core
+        Qt6::DBus
+        KF6::AuthCore
+    )
+
+    install(TARGETS alakarte_gamecenter_helper
+        DESTINATION ${KAUTH_HELPER_INSTALL_DIR}
+    )
+
+    install(FILES polkit/org.kde.alakarte.gamecenter.helper.policy
+        DESTINATION ${KAUTH_POLICY_FILES_INSTALL_DIR}
+    )
+
+    KAUTH_INSTALL_HELPER_FILES(alakarte_gamecenter_helper org.kde.alakarte.gamecenter.helper root)
+endif()
+
 set_target_properties(alakarte_gamecenter PROPERTIES
     OUTPUT_NAME "alakarte-gamecenter"
 )
@@ -24,9 +55,6 @@ install(TARGETS alakarte_gamecenter ${KDE_INSTALL_TARGETS_DEFAULT_ARGS})
 
 file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/dbus")
 file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/systemd")
-file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/dbus-system")
-file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/systemd-system")
-file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/dbus-policy")
 
 configure_file(dbus/org.kde.GameCenter1.service.in
     "${CMAKE_CURRENT_BINARY_DIR}/dbus/org.kde.GameCenter1.service"
@@ -38,21 +66,6 @@ configure_file(systemd/org.kde.GameCenter1.service.in
     @ONLY
 )
 
-configure_file(dbus/org.kde.GameCenter1.system.service.in
-    "${CMAKE_CURRENT_BINARY_DIR}/dbus-system/org.kde.GameCenter1.service"
-    @ONLY
-)
-
-configure_file(systemd/org.kde.GameCenter1.system.service.in
-    "${CMAKE_CURRENT_BINARY_DIR}/systemd-system/org.kde.GameCenter1.service"
-    @ONLY
-)
-
-configure_file(dbus/org.kde.GameCenter1.conf.in
-    "${CMAKE_CURRENT_BINARY_DIR}/dbus-policy/org.kde.GameCenter1.conf"
-    @ONLY
-)
-
 install(FILES "${CMAKE_CURRENT_BINARY_DIR}/dbus/org.kde.GameCenter1.service"
     DESTINATION ${KDE_INSTALL_DBUSSERVICEDIR}
 )
@@ -60,15 +73,3 @@ install(FILES "${CMAKE_CURRENT_BINARY_DIR}/dbus/org.kde.GameCenter1.service"
 install(FILES "${CMAKE_CURRENT_BINARY_DIR}/systemd/org.kde.GameCenter1.service"
     DESTINATION ${KDE_INSTALL_SYSTEMDUSERUNITDIR}
 )
-
-install(FILES "${CMAKE_CURRENT_BINARY_DIR}/dbus-system/org.kde.GameCenter1.service"
-    DESTINATION ${KDE_INSTALL_DBUSSYSTEMSERVICEDIR}
-)
-
-install(FILES "${CMAKE_CURRENT_BINARY_DIR}/systemd-system/org.kde.GameCenter1.service"
-    DESTINATION ${KDE_INSTALL_SYSTEMDUNITDIR}
-)
-
-install(FILES "${CMAKE_CURRENT_BINARY_DIR}/dbus-policy/org.kde.GameCenter1.conf"
-    DESTINATION ${KDE_INSTALL_SYSCONFDIR}/dbus-1/system.d
-)

src/gamecenter/gamecenterdaemon.cpp

@@ -25,6 +25,14 @@
 
 #include <QSet>
 
+#include <signal.h>
+#include <sys/types.h>
+
+#ifdef ALAKARTE_HAVE_KAUTH
+#include <KAuth/Action>
+#include <KAuth/ExecuteJob>
+#endif
+
 #include <utility>
 
 static const QString kRunnerService = QStringLiteral("org.kde.ALaKarte.Runner1");
@@ -43,6 +51,26 @@ static QString ensureScopeUnitName(const QString &unitName)
 namespace
 {
 
+static void terminatePids(const QList<uint> &pids)
+{
+    for (uint pid : pids) {
+        if (pid == 0) {
+            continue;
+        }
+        ::kill(static_cast<pid_t>(pid), SIGTERM);
+    }
+}
+
+static void killPids(const QList<uint> &pids)
+{
+    for (uint pid : pids) {
+        if (pid == 0) {
+            continue;
+        }
+        ::kill(static_cast<pid_t>(pid), SIGKILL);
+    }
+}
+
 static QVariant unwrapDbusVariant(QVariant v)
 {
     if (v.canConvert<QDBusVariant>()) {
@@ -236,6 +264,8 @@ private:
 
 } // namespace
 
+#if 0
+
 static const QString kGameCenterService = QStringLiteral("org.kde.GameCenter1");
 static const QString kGameCenterPath = QStringLiteral("/org/kde/GameCenter1");
 static const QString kGameCenterInterface = QStringLiteral("org.kde.GameCenter1");
@@ -675,6 +705,8 @@ bool GameCenterSystemProxy::init()
     return d->init();
 }
 
+#endif
+
 void GameCenterDaemon::watchSystemdUnit(const QString &sessionId, const QString &unitName, const QDBusObjectPath &unitPath)
 {
     if (unitName.isEmpty()) {
@@ -910,6 +942,18 @@ QVariantMap GameCenterDaemon::GetCapabilities() const
     QVariantMap caps;
     caps.insert(QStringLiteral("supportsSystemd"), m_systemd.isAvailable());
     caps.insert(QStringLiteral("supportsSystemBus"), false);
+#ifdef ALAKARTE_HAVE_KAUTH
+    bool supportsPowerProfiles = false;
+    {
+        QDBusConnection sysBus = QDBusConnection::systemBus();
+        if (sysBus.isConnected() && sysBus.interface()) {
+            supportsPowerProfiles = sysBus.interface()->isServiceRegistered(QStringLiteral("net.hadess.PowerProfiles"));
+        }
+    }
+    caps.insert(QStringLiteral("supportsPowerProfiles"), supportsPowerProfiles);
+#else
+    caps.insert(QStringLiteral("supportsPowerProfiles"), false);
+#endif
     const bool systemdAvailable = m_systemd.isAvailable();
     const bool steamAvailable = !QStandardPaths::findExecutable(QStringLiteral("steam")).isEmpty();
     const bool lutrisAvailable = !QStandardPaths::findExecutable(QStringLiteral("lutris")).isEmpty();
@@ -948,12 +992,44 @@ void GameCenterDaemon::SetPolicy(const QVariantMap &policy)
         }
         m_maxConcurrent = v.toInt();
     }
+
+    if (policy.contains(QStringLiteral("powerProfile"))) {
+        QVariant v = policy.value(QStringLiteral("powerProfile"));
+        if (v.canConvert<QDBusVariant>()) {
+            v = v.value<QDBusVariant>().variant();
+        }
+
+        const QString nextProfile = v.toString();
+        if (!nextProfile.isEmpty() && nextProfile != m_powerProfile) {
+#ifdef ALAKARTE_HAVE_KAUTH
+            const QString previousProfile = m_powerProfile;
+            QVariantMap args;
+            args.insert(QStringLiteral("profile"), nextProfile);
+
+            KAuth::Action action(QStringLiteral("org.kde.alakarte.gamecenter.helper.setpowerprofile"));
+            action.setHelperId(QStringLiteral("org.kde.alakarte.gamecenter.helper"));
+            action.setArguments(args);
+
+            KAuth::ExecuteJob *job = action.execute();
+            if (job) {
+                if (job->exec()) {
+                    m_powerProfile = nextProfile;
+                } else {
+                    m_powerProfile = previousProfile;
+                }
+            }
+#else
+            m_powerProfile = nextProfile;
+#endif
+        }
+    }
 }
 
 QVariantMap GameCenterDaemon::GetPolicy() const
 {
     return {
         {QStringLiteral("maxConcurrent"), m_maxConcurrent},
+        {QStringLiteral("powerProfile"), m_powerProfile},
     };
 }
 
@@ -1020,7 +1096,10 @@ QString GameCenterDaemon::launchDirect(const QVariantMap &launchSpec)
             v = v.value<QDBusVariant>().variant();
         }
         if (v.canConvert<QVariantMap>()) {
-            return v.toMap();
+            const QVariantMap asMap = v.toMap();
+            if (!asMap.isEmpty()) {
+                return asMap;
+            }
         }
         if (v.canConvert<QDBusArgument>()) {
             const QDBusArgument arg = v.value<QDBusArgument>();
@@ -1033,9 +1112,24 @@ QString GameCenterDaemon::launchDirect(const QVariantMap &launchSpec)
                 return converted;
             }
 
-            QVariantMap asMap = qdbus_cast<QVariantMap>(arg);
-            if (!asMap.isEmpty()) {
-                return asMap;
+            QVariantMap converted;
+            {
+                QDBusArgument mapArg = arg;
+                mapArg.beginMap();
+                while (!mapArg.atEnd()) {
+                    mapArg.beginMapEntry();
+                    QString key;
+                    QDBusVariant value;
+                    mapArg >> key >> value;
+                    mapArg.endMapEntry();
+                    if (!key.isEmpty()) {
+                        converted.insert(key, value.variant());
+                    }
+                }
+                mapArg.endMap();
+            }
+            if (!converted.isEmpty()) {
+                return converted;
             }
         }
         return QVariantMap{};
@@ -1238,10 +1332,7 @@ QString GameCenterDaemon::launchMonitored(const QVariantMap &launchSpec, const Q
 
         matcher = [appId]() -> QList<ProcessScanner::Match> {
             // Primary: look for SteamAppId=<appId> in environ
-            QList<ProcessScanner::Match> results = ProcessScanner::findByEnvironment(QStringLiteral("SteamAppId"), appId);
-            if (results.isEmpty()) {
-                results = ProcessScanner::findByEnvironment(QStringLiteral("SteamGameId"), appId);
-            }
+            QList<ProcessScanner::Match> results = ProcessScanner::findByAnyEnvironment({QStringLiteral("SteamAppId"), QStringLiteral("SteamGameId")}, appId);
             // Filter out the steam client itself
             QList<ProcessScanner::Match> filtered;
             for (const auto &m : std::as_const(results)) {
@@ -1330,6 +1421,34 @@ QString GameCenterDaemon::launchMonitored(const QVariantMap &launchSpec, const Q
     }
 
     session.process = bootstrap;
+
+    const QString unitName = ensureScopeUnitName(QStringLiteral("alakarte-game-%1").arg(sessionId));
+    const QString description = session.gameId.isEmpty() ? QStringLiteral("A-La-Karte game") : QStringLiteral("A-La-Karte game %1").arg(session.gameId);
+
+    const QDBusReply<QDBusObjectPath> scopeReply = m_systemd.startTransientScope(unitName, {static_cast<uint>(bootstrap->processId())}, description);
+    if (!scopeReply.isValid()) {
+        const QVariantMap ctx = {
+            {QStringLiteral("gameId"), gameId},
+            {QStringLiteral("provider"), provider},
+            {QStringLiteral("command"), command},
+            {QStringLiteral("unit"), unitName},
+            {QStringLiteral("error"), scopeReply.error().message()},
+        };
+        bootstrap->kill();
+        bootstrap->deleteLater();
+        QVariantMap finalState = sessionToVariantMap(session, QStringLiteral("Failed"));
+        Q_EMIT SessionRemoved(sessionId, finalState);
+        m_sessions.remove(sessionId);
+        failLaunch(QStringLiteral("failed to create transient scope"), ctx);
+        return {};
+    }
+
+    session.unitName = unitName;
+    const QDBusReply<QDBusObjectPath> getUnitReply = m_systemd.getUnit(unitName);
+    if (getUnitReply.isValid()) {
+        session.unitPath = getUnitReply.value();
+    }
+
     m_sessions[sessionId] = session;
 
     connect(bootstrap, qOverload<int, QProcess::ExitStatus>(&QProcess::finished), this, [this, sessionId](int, QProcess::ExitStatus) {
@@ -1373,6 +1492,11 @@ QString GameCenterDaemon::launchMonitored(const QVariantMap &launchSpec, const Q
 
         QVariantMap finalState = sessionToVariantMap(it.value(), stopping ? QStringLiteral("Stopped") : QStringLiteral("Failed"));
 
+        if (!it.value().unitName.isEmpty()) {
+            m_systemd.stopUnit(it.value().unitName);
+            unwatchSystemdUnit(it.value().unitName, it.value().unitPath);
+        }
+
         if (it.value().scanner) {
             it.value().scanner->cancel();
             it.value().scanner->deleteLater();
@@ -1408,27 +1532,49 @@ void GameCenterDaemon::attachPidsToSession(const QString &sessionId, const QList
 
     it.value().mainPid = pids.first();
 
-    const QString unitName = ensureScopeUnitName(QStringLiteral("alakarte-game-%1").arg(sessionId));
+    const QString unitName = it.value().unitName.isEmpty() ? ensureScopeUnitName(QStringLiteral("alakarte-game-%1").arg(sessionId)) : it.value().unitName;
     const QString description = it.value().gameId.isEmpty() ? QStringLiteral("A-La-Karte game") : QStringLiteral("A-La-Karte game %1").arg(it.value().gameId);
 
-    const QDBusReply<QDBusObjectPath> reply = m_systemd.startTransientScope(unitName, pids, description);
-    if (!reply.isValid()) {
-        const QVariantMap ctx = {
-            {QStringLiteral("gameId"), it.value().gameId},
-            {QStringLiteral("provider"), it.value().provider},
-            {QStringLiteral("unit"), unitName},
-            {QStringLiteral("error"), reply.error().message()},
-        };
+    QDBusReply<void> attachReply = m_systemd.attachProcessesToUnit(unitName, pids);
+    if (!attachReply.isValid()) {
+        if (attachReply.error().name() == QLatin1String("org.freedesktop.systemd1.NoSuchUnit")) {
+            const QDBusReply<QDBusObjectPath> startReply = m_systemd.startTransientScope(unitName, pids, description);
+            if (!startReply.isValid()) {
+                const QVariantMap ctx = {
+                    {QStringLiteral("gameId"), it.value().gameId},
+                    {QStringLiteral("provider"), it.value().provider},
+                    {QStringLiteral("unit"), unitName},
+                    {QStringLiteral("error"), startReply.error().message()},
+                };
 
-        QVariantMap finalState = sessionToVariantMap(it.value(), QStringLiteral("Failed"));
-        if (it.value().process) {
-            it.value().process->deleteLater();
+                QVariantMap finalState = sessionToVariantMap(it.value(), QStringLiteral("Failed"));
+                if (it.value().process) {
+                    it.value().process->deleteLater();
+                }
+                Q_EMIT SessionRemoved(sessionId, finalState);
+                m_sessions.erase(it);
+
+                failLaunch(QStringLiteral("failed to create transient scope for monitored game"), ctx);
+                return;
+            }
+        } else {
+            const QVariantMap ctx = {
+                {QStringLiteral("gameId"), it.value().gameId},
+                {QStringLiteral("provider"), it.value().provider},
+                {QStringLiteral("unit"), unitName},
+                {QStringLiteral("error"), attachReply.error().message()},
+            };
+
+            QVariantMap finalState = sessionToVariantMap(it.value(), QStringLiteral("Failed"));
+            if (it.value().process) {
+                it.value().process->deleteLater();
+            }
+            Q_EMIT SessionRemoved(sessionId, finalState);
+            m_sessions.erase(it);
+
+            failLaunch(QStringLiteral("failed to attach monitored game to scope"), ctx);
+            return;
         }
-        Q_EMIT SessionRemoved(sessionId, finalState);
-        m_sessions.erase(it);
-
-        failLaunch(QStringLiteral("failed to create transient scope for monitored game"), ctx);
-        return;
     }
 
     it.value().unitName = unitName;
@@ -1446,11 +1592,25 @@ void GameCenterDaemon::attachPidsToSession(const QString &sessionId, const QList
     }
 
     if (it.value().stopping) {
-        m_systemd.stopUnit(it.value().unitName);
-        QVariantMap finalState = sessionToVariantMap(it.value(), QStringLiteral("Stopped"));
-        Q_EMIT SessionRemoved(sessionId, finalState);
+        const QDBusReply<QDBusObjectPath> stopReply = m_systemd.stopUnit(it.value().unitName);
+        if (stopReply.isValid()) {
+            Q_EMIT SessionChanged(sessionToVariantMap(it.value(), QStringLiteral("Stopping")));
+            return;
+        }
+
+        if (stopReply.error().name() == QLatin1String("org.freedesktop.systemd1.NoSuchUnit")) {
+            unwatchSystemdUnit(unitName, it.value().unitPath);
+            removeSessionInternal(sessionId, QStringLiteral("Stopped"));
+            return;
+        }
+
+        terminatePids(pids);
+        QTimer::singleShot(5000, this, [pids]() {
+            killPids(pids);
+        });
+
         unwatchSystemdUnit(unitName, it.value().unitPath);
-        m_sessions.erase(it);
+        removeSessionInternal(sessionId, QStringLiteral("Stopped"));
         return;
     }
 
@@ -1534,12 +1694,6 @@ void GameCenterDaemon::Stop(const QString &sessionId)
     if (it.value().scanner) {
         Q_EMIT SessionChanged(sessionToVariantMap(it.value(), QStringLiteral("Stopping")));
 
-        if (it.value().scanner) {
-            it.value().scanner->cancel();
-            it.value().scanner->deleteLater();
-            it.value().scanner = nullptr;
-        }
-
         QPointer<QProcess> proc = it.value().process;
         it.value().process = nullptr;
         if (proc) {
@@ -1556,9 +1710,10 @@ void GameCenterDaemon::Stop(const QString &sessionId)
             }
         }
 
-        QVariantMap finalState = sessionToVariantMap(it.value(), QStringLiteral("Stopped"));
-        Q_EMIT SessionRemoved(sessionId, finalState);
-        m_sessions.erase(it);
+        if (!it.value().unitName.isEmpty()) {
+            m_systemd.stopUnit(it.value().unitName);
+        }
+
         return;
     }
 
@@ -1575,6 +1730,12 @@ void GameCenterDaemon::Stop(const QString &sessionId)
 
     const QDBusReply<QDBusObjectPath> reply = m_systemd.stopUnit(it.value().unitName);
     if (!reply.isValid()) {
+        if (reply.error().name() == QLatin1String("org.freedesktop.systemd1.NoSuchUnit")) {
+            unwatchSystemdUnit(it.value().unitName, it.value().unitPath);
+            removeSessionInternal(sessionId, QStringLiteral("Stopped"));
+            return;
+        }
+
         if (it.value().process && it.value().process->state() != QProcess::NotRunning) {
             it.value().process->terminate();
             QTimer::singleShot(5000, it.value().process, [process = it.value().process]() {
@@ -1617,12 +1778,12 @@ QString GameCenterDaemon::sessionState(const Session &session)
     if (session.stopping) {
         return QStringLiteral("Stopping");
     }
-    if (!session.unitName.isEmpty()) {
-        return QStringLiteral("Running");
-    }
     if (session.scanner) {
         return QStringLiteral("Launching");
     }
+    if (!session.unitName.isEmpty()) {
+        return QStringLiteral("Running");
+    }
     if (session.process) {
         return session.process->state() == QProcess::Running ? QStringLiteral("Running") : QStringLiteral("Exited");
     }

src/gamecenter/gamecenterdaemon.h

@@ -92,23 +92,8 @@ private:
     SystemdUserManager m_systemd;
     QHash<QString, Session> m_sessions;
     int m_maxConcurrent = 0;
+    QString m_powerProfile;
     QHash<QString, QString> m_unitPathToSessionId;
     QHash<QString, QString> m_unitNameToSessionId;
     QHash<QString, QObject *> m_unitPathWatchers;
 };
-
-class GameCenterSystemProxyPrivate;
-
-class GameCenterSystemProxy : public QObject
-{
-    Q_OBJECT
-
-public:
-    explicit GameCenterSystemProxy(QObject *parent = nullptr);
-    ~GameCenterSystemProxy() override;
-
-    bool init();
-
-private:
-    std::unique_ptr<GameCenterSystemProxyPrivate> d;
-};

src/gamecenter/gamecenterkauthhelper.cpp

@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2026 A-La-Karte Contributors
+
+#include <KAuth/ActionReply>
+#include <KAuth/HelperSupport>
+
+#include <QDBusConnection>
+#include <QDBusError>
+#include <QDBusInterface>
+#include <QDBusMessage>
+#include <QDBusReply>
+#include <QDBusVariant>
+#include <QObject>
+#include <QVariant>
+#include <QVariantMap>
+
+using namespace KAuth;
+
+static const QString kPowerProfilesService = QStringLiteral("net.hadess.PowerProfiles");
+static const QString kPowerProfilesPath = QStringLiteral("/net/hadess/PowerProfiles");
+static const QString kPowerProfilesInterface = QStringLiteral("net.hadess.PowerProfiles");
+
+class GameCenterHelper : public QObject
+{
+    Q_OBJECT
+
+public Q_SLOTS:
+    ActionReply setpowerprofile(const QVariantMap &args);
+};
+
+static QString unwrapStringArg(const QVariantMap &args, const QString &key)
+{
+    QVariant v = args.value(key);
+    if (v.canConvert<QDBusVariant>()) {
+        v = v.value<QDBusVariant>().variant();
+    }
+    return v.toString();
+}
+
+ActionReply GameCenterHelper::setpowerprofile(const QVariantMap &args)
+{
+    const QString profile = unwrapStringArg(args, QStringLiteral("profile"));
+    if (profile.isEmpty()) {
+        ActionReply reply = ActionReply::HelperErrorReply();
+        reply.setErrorDescription(QStringLiteral("missing profile"));
+        return reply;
+    }
+
+    QDBusConnection bus = QDBusConnection::systemBus();
+    if (!bus.isConnected()) {
+        ActionReply reply = ActionReply::HelperErrorReply();
+        reply.setErrorDescription(QStringLiteral("system bus not connected"));
+        return reply;
+    }
+
+    QDBusInterface props(kPowerProfilesService, kPowerProfilesPath, QStringLiteral("org.freedesktop.DBus.Properties"), bus);
+    if (!props.isValid()) {
+        ActionReply reply = ActionReply::HelperErrorReply();
+        reply.setErrorDescription(QStringLiteral("power-profiles-daemon D-Bus interface not available"));
+        return reply;
+    }
+
+    QDBusMessage msg =
+        QDBusMessage::createMethodCall(kPowerProfilesService, kPowerProfilesPath, QStringLiteral("org.freedesktop.DBus.Properties"), QStringLiteral("Set"));
+    msg.setArguments({kPowerProfilesInterface, QStringLiteral("ActiveProfile"), QVariant::fromValue(QDBusVariant(profile))});
+
+    const QDBusMessage replyMsg = bus.call(msg, QDBus::Block, 5000);
+    if (replyMsg.type() == QDBusMessage::ErrorMessage) {
+        ActionReply reply = ActionReply::HelperErrorReply();
+        reply.setErrorDescription(replyMsg.errorName() + QStringLiteral(": ") + replyMsg.errorMessage());
+        return reply;
+    }
+
+    return ActionReply::SuccessReply();
+}
+
+KAUTH_HELPER_MAIN("org.kde.alakarte.gamecenter.helper", GameCenterHelper)
+
+#include "gamecenterkauthhelper.moc"

src/gamecenter/main.cpp

@@ -5,31 +5,37 @@
 #include <QCommandLineParser>
 #include <QCoreApplication>
 
+#include <KDBusService>
+#include <KSignalHandler>
+
 #include "gamecenterdaemon.h"
 
+#include <signal.h>
+
 int main(int argc, char *argv[])
 {
     QCoreApplication app(argc, argv);
+    app.setOrganizationDomain(QStringLiteral("kde.org"));
+    app.setApplicationName(QStringLiteral("alakarte_gamecenter"));
+
+    KDBusService service(KDBusService::Unique);
 
     QCommandLineParser parser;
     parser.setApplicationDescription(QStringLiteral("A-La-Karte Game Center"));
     parser.addHelpOption();
-    parser.addOption(QCommandLineOption(QStringLiteral("system"), QStringLiteral("Run as system bus proxy")));
     parser.process(app);
 
-    if (parser.isSet(QStringLiteral("system"))) {
-        GameCenterSystemProxy proxy;
-        if (!proxy.init()) {
-            return 1;
-        }
-
-        return app.exec();
-    }
-
     GameCenterDaemon daemon;
     if (!daemon.init()) {
         return 1;
     }
 
+    KSignalHandler::self()->watchSignal(SIGTERM);
+    KSignalHandler::self()->watchSignal(SIGINT);
+    QObject::connect(KSignalHandler::self(), &KSignalHandler::signalReceived, &app, [&app](int signal) {
+        Q_UNUSED(signal);
+        app.quit();
+    });
+
     return app.exec();
 }

src/gamecenter/polkit/org.kde.alakarte.gamecenter.helper.policy

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE policyconfig PUBLIC
+"-//freedesktop//DTD PolicyKit Policy Configuration 1.0//EN"
+"http://www.freedesktop.org/standards/PolicyKit/1.0/policyconfig.dtd">
+<policyconfig>
+  <vendor>A-La-Karte</vendor>
+  <vendor_url>https://invent.kde.org/marcoa/a-la-karte</vendor_url>
+  <icon_name>org.kde.alakarte</icon_name>
+  <action id="org.kde.alakarte.gamecenter.helper.setpowerprofile">
+    <description>Set system power profile</description>
+    <message>Authentication is required to set the system power profile.</message>
+    <defaults>
+      <allow_inactive>no</allow_inactive>
+      <allow_active>auth_admin_keep</allow_active>
+    </defaults>
+  </action>
+</policyconfig>

src/gamecenter/processscanner.cpp

@@ -6,6 +6,7 @@
 #include <QDir>
 #include <QFile>
 #include <QFileInfo>
+#include <QtConcurrentRun>
 
 ProcessScanner::ProcessScanner(QObject *parent)
     : QObject(parent)
@@ -15,21 +16,61 @@ ProcessScanner::ProcessScanner(QObject *parent)
 
     connect(&m_deadline, &QTimer::timeout, this, [this]() {
         m_timer.stop();
+        m_matcher = nullptr;
+        ++m_generation;
+        m_scanInFlight = false;
         Q_EMIT timedOut();
     });
 
     connect(&m_timer, &QTimer::timeout, this, [this]() {
-        if (!m_matcher) {
-            m_timer.stop();
+        startScan();
+    });
+}
+
+void ProcessScanner::startScan()
+{
+    if (!m_matcher) {
+        m_timer.stop();
+        return;
+    }
+
+    if (m_scanInFlight && m_scanGeneration == m_generation) {
+        return;
+    }
+
+    const quint64 gen = m_generation;
+    m_scanInFlight = true;
+    m_scanGeneration = gen;
+
+    const std::function<QList<Match>()> matcher = m_matcher;
+    auto *watcher = new QFutureWatcher<QList<Match>>(this);
+
+    connect(watcher, &QFutureWatcher<QList<Match>>::finished, this, [this, watcher, gen]() {
+        const QList<Match> results = watcher->result();
+        watcher->deleteLater();
+
+        if (m_scanGeneration == gen) {
+            m_scanInFlight = false;
+        }
+
+        if (gen != m_generation || !m_matcher) {
             return;
         }
-        const QList<Match> results = m_matcher();
+
         if (!results.isEmpty()) {
             m_timer.stop();
             m_deadline.stop();
+            m_matcher = nullptr;
             Q_EMIT found(results);
         }
     });
+
+    watcher->setFuture(QtConcurrent::run([matcher]() {
+        if (!matcher) {
+            return QList<Match>{};
+        }
+        return matcher();
+    }));
 }
 
 static QByteArray readProcFile(const QString &path, qint64 maxSize = 65536)
@@ -56,6 +97,28 @@ static QByteArray readEnviron(const QString &pidDir)
     return readProcFile(pidDir + QStringLiteral("/environ"));
 }
 
+static bool containsNullSeparatedEntry(const QByteArray &blob, const QByteArray &needle)
+{
+    if (blob.isEmpty() || needle.isEmpty()) {
+        return false;
+    }
+
+    int pos = -1;
+    while (true) {
+        pos = blob.indexOf(needle, pos + 1);
+        if (pos < 0) {
+            return false;
+        }
+
+        const bool startOk = (pos == 0) || (blob.at(pos - 1) == '\0');
+        const int endPos = pos + needle.size();
+        const bool endOk = (endPos == blob.size()) || (blob.at(endPos) == '\0');
+        if (startOk && endOk) {
+            return true;
+        }
+    }
+}
+
 static QList<uint> listPids()
 {
     QList<uint> pids;
@@ -84,22 +147,7 @@ QList<ProcessScanner::Match> ProcessScanner::findByEnvironment(const QString &ke
             continue;
         }
 
-        // environ entries are separated by null bytes
-        bool found = false;
-        int start = 0;
-        while (start < env.size()) {
-            int end = env.indexOf('\0', start);
-            if (end < 0) {
-                end = env.size();
-            }
-            if (env.mid(start, end - start) == needle) {
-                found = true;
-                break;
-            }
-            start = end + 1;
-        }
-
-        if (found) {
+        if (containsNullSeparatedEntry(env, needle)) {
             Match m;
             m.pid = pid;
             m.exe = readExeLink(pidDir);
@@ -111,6 +159,54 @@ QList<ProcessScanner::Match> ProcessScanner::findByEnvironment(const QString &ke
     return matches;
 }
 
+QList<ProcessScanner::Match> ProcessScanner::findByAnyEnvironment(const QStringList &keys, const QString &value)
+{
+    QList<Match> matches;
+    if (keys.isEmpty()) {
+        return matches;
+    }
+
+    QList<QByteArray> needles;
+    needles.reserve(keys.size());
+    for (const QString &key : keys) {
+        if (!key.isEmpty()) {
+            needles.push_back((key + QLatin1Char('=') + value).toUtf8());
+        }
+    }
+    if (needles.isEmpty()) {
+        return matches;
+    }
+
+    const QList<uint> pids = listPids();
+    for (uint pid : pids) {
+        const QString pidDir = QStringLiteral("/proc/%1").arg(pid);
+        const QByteArray env = readEnviron(pidDir);
+        if (env.isEmpty()) {
+            continue;
+        }
+
+        bool found = false;
+        for (const QByteArray &needle : needles) {
+            if (containsNullSeparatedEntry(env, needle)) {
+                found = true;
+                break;
+            }
+        }
+        if (!found) {
+            continue;
+        }
+
+        Match m;
+        m.pid = pid;
+        m.exe = readExeLink(pidDir);
+        const QByteArray cmd = readCmdline(pidDir);
+        m.cmdline = QString::fromLocal8Bit(cmd).replace(QLatin1Char('\0'), QLatin1Char(' ')).trimmed();
+        matches.push_back(m);
+    }
+
+    return matches;
+}
+
 QList<ProcessScanner::Match> ProcessScanner::findByCmdline(const QString &substring)
 {
     QList<Match> matches;
@@ -164,15 +260,10 @@ void ProcessScanner::pollUntilFound(std::function<QList<Match>()> matcher, int i
     cancel();
     m_matcher = std::move(matcher);
 
-    // Try once immediately
-    const QList<Match> immediate = m_matcher();
-    if (!immediate.isEmpty()) {
-        Q_EMIT found(immediate);
-        return;
-    }
-
     m_deadline.start(timeoutMs);
     m_timer.start(intervalMs);
+
+    startScan();
 }
 
 void ProcessScanner::cancel()
@@ -180,4 +271,6 @@ void ProcessScanner::cancel()
     m_timer.stop();
     m_deadline.stop();
     m_matcher = nullptr;
+    ++m_generation;
+    m_scanInFlight = false;
 }

src/gamecenter/processscanner.h

@@ -3,10 +3,12 @@
 
 #pragma once
 
+#include <QFutureWatcher>
 #include <QList>
 #include <QObject>
 #include <QString>
 #include <QTimer>
+#include <QtGlobal>
 #include <functional>
 
 class ProcessScanner : public QObject
@@ -25,6 +27,9 @@ public:
     // Find PIDs whose /proc/<pid>/environ contains key=value
     static QList<Match> findByEnvironment(const QString &key, const QString &value);
 
+    // Find PIDs whose /proc/<pid>/environ contains any of key=value for the provided keys
+    static QList<Match> findByAnyEnvironment(const QStringList &keys, const QString &value);
+
     // Find PIDs whose /proc/<pid>/cmdline contains the substring
     static QList<Match> findByCmdline(const QString &substring);
 
@@ -42,7 +47,12 @@ Q_SIGNALS:
     void timedOut();
 
 private:
+    void startScan();
+
     QTimer m_timer;
     QTimer m_deadline;
     std::function<QList<Match>()> m_matcher;
+    quint64 m_generation = 0;
+    bool m_scanInFlight = false;
+    quint64 m_scanGeneration = 0;
 };

src/gamecenter/systemdusermanager.cpp

@@ -130,6 +130,17 @@ QDBusReply<QDBusObjectPath> SystemdUserManager::stopUnit(const QString &unitName
     return QDBusReply<QDBusObjectPath>(reply);
 }
 
+QDBusReply<void> SystemdUserManager::attachProcessesToUnit(const QString &unitName, const QList<uint> &pids, const QString &subcgroup)
+{
+    QDBusInterface manager(QStringLiteral("org.freedesktop.systemd1"),
+                           QStringLiteral("/org/freedesktop/systemd1"),
+                           QStringLiteral("org.freedesktop.systemd1.Manager"),
+                           QDBusConnection::sessionBus());
+
+    const QDBusMessage reply = manager.call(QStringLiteral("AttachProcessesToUnit"), unitName, subcgroup, QVariant::fromValue(pids));
+    return QDBusReply<void>(reply);
+}
+
 QDBusReply<QDBusObjectPath> SystemdUserManager::getUnit(const QString &unitName)
 {
     QDBusInterface manager(QStringLiteral("org.freedesktop.systemd1"),

src/gamecenter/systemdusermanager.h

@@ -59,6 +59,8 @@ public:
 
     QDBusReply<QDBusObjectPath> stopUnit(const QString &unitName, const QString &mode = QStringLiteral("replace"));
 
+    QDBusReply<void> attachProcessesToUnit(const QString &unitName, const QList<uint> &pids, const QString &subcgroup = QString());
+
     QDBusReply<QDBusObjectPath> getUnit(const QString &unitName);
 
     QDBusReply<SystemdUnitInfoList> listUnits();

src/gamelauncher.cpp

@@ -13,13 +13,11 @@
 #include <QDBusReply>
 #include <QDBusVariant>
 #include <QDateTime>
-#include <QDesktopServices>
 #include <QDir>
 #include <QFileInfo>
 #include <QProcess>
 #include <QStandardPaths>
 #include <QTimer>
-#include <QUrl>
 
 static const QString kGameCenterService = QStringLiteral("org.kde.GameCenter1");
 static const QString kGameCenterPath = QStringLiteral("/org/kde/GameCenter1");
@@ -399,7 +397,7 @@ QVariantMap GameLauncher::resolveLaunchInfo(Game *game) const
         return info;
     }
 
-    if (!runnerId.isEmpty() || runner == QLatin1String("wine") || runner == QLatin1String("proton")) {
+    {
         QVariantMap runnerSpec = {
             {QStringLiteral("runnerId"), runnerId},
             {QStringLiteral("runner"), runner},
@@ -409,6 +407,7 @@ QVariantMap GameLauncher::resolveLaunchInfo(Game *game) const
             {QStringLiteral("program"), program},
             {QStringLiteral("args"), parts},
             {QStringLiteral("envOverrides"), envOverrides},
+            {QStringLiteral("useGameProfile"), true},
         };
 
         QVariantMap resolved;
@@ -418,22 +417,33 @@ QVariantMap GameLauncher::resolveLaunchInfo(Game *game) const
                 return info;
             }
 
-            info.insert(QStringLiteral("finalProgram"), resolved.value(QStringLiteral("finalProgram")).toString());
-            info.insert(QStringLiteral("finalArgs"), resolved.value(QStringLiteral("finalArgs")).toStringList());
-            info.insert(QStringLiteral("effectiveEnv"), resolved.value(QStringLiteral("effectiveEnv")).toMap());
+            if (resolved.contains(QStringLiteral("effectiveEnv"))) {
+                effectiveEnv = resolved.value(QStringLiteral("effectiveEnv")).toMap();
+            }
 
+            const QString resolvedFinalProgram = resolved.value(QStringLiteral("finalProgram")).toString();
+            const QStringList resolvedFinalArgs = resolved.value(QStringLiteral("finalArgs")).toStringList();
             const QString resolvedPrefixPath = resolved.value(QStringLiteral("resolvedPrefixPath")).toString();
-            if (!resolvedPrefixPath.isEmpty()) {
-                info.insert(QStringLiteral("resolvedPrefixPath"), resolvedPrefixPath);
-            }
-
             const QString resolvedSteamInstallPath = resolved.value(QStringLiteral("resolvedSteamInstallPath")).toString();
-            if (!resolvedSteamInstallPath.isEmpty()) {
-                info.insert(QStringLiteral("resolvedSteamInstallPath"), resolvedSteamInstallPath);
-            }
 
-            info.insert(QStringLiteral("ok"), true);
-            return info;
+            const bool runnerManagerWrapped =
+                (resolvedFinalProgram != program) || (resolvedFinalArgs != parts) || !resolvedPrefixPath.isEmpty() || !resolvedSteamInstallPath.isEmpty();
+
+            if (runnerManagerWrapped) {
+                info.insert(QStringLiteral("finalProgram"), resolvedFinalProgram);
+                info.insert(QStringLiteral("finalArgs"), resolvedFinalArgs);
+                info.insert(QStringLiteral("effectiveEnv"), effectiveEnv);
+
+                if (!resolvedPrefixPath.isEmpty()) {
+                    info.insert(QStringLiteral("resolvedPrefixPath"), resolvedPrefixPath);
+                }
+                if (!resolvedSteamInstallPath.isEmpty()) {
+                    info.insert(QStringLiteral("resolvedSteamInstallPath"), resolvedSteamInstallPath);
+                }
+
+                info.insert(QStringLiteral("ok"), true);
+                return info;
+            }
         } else if (!runnerId.isEmpty()) {
             info.insert(QStringLiteral("error"), tr("Runner service is not available"));
             return info;
@@ -606,17 +616,6 @@ void GameLauncher::launchGame(Game *game)
 
         const QString launchError = reply.isValid() ? QString() : reply.error().message();
 
-        // Daemon call failed — fallback for URL-type commands only
-        if (launchType == QLatin1String("url")) {
-            const QString url = info.value(QStringLiteral("url")).toString();
-            if (!url.isEmpty()) {
-                QDesktopServices::openUrl(QUrl(url));
-                game->setLastPlayed(QDateTime::currentDateTime());
-                Q_EMIT gameStarted(game);
-                return;
-            }
-        }
-
         // No fallback for non-URL commands — emit error
         if (!launchError.isEmpty()) {
             Q_EMIT gameError(game, tr("Game Center launch failed: %1").arg(launchError));

src/gamepadmanager.cpp

@@ -136,6 +136,21 @@ bool GamepadManager::active() const
     return m_active;
 }
 
+QString GamepadManager::name() const
+{
+    return m_name;
+}
+
+int GamepadManager::vendorId() const
+{
+    return m_vendorId;
+}
+
+int GamepadManager::productId() const
+{
+    return m_productId;
+}
+
 GamepadManager::ControllerStyle GamepadManager::controllerStyle() const
 {
     return m_controllerStyle;
@@ -229,14 +244,24 @@ void GamepadManager::closeGamepad()
 void GamepadManager::updateControllerInfo()
 {
     ControllerStyle style = UnknownController;
+    QString name;
+    int vendorId = 0;
+    int productId = 0;
     QString confirmLabel;
     QString backLabel;
     QString detailsLabel;
     QString searchLabel;
 
     if (m_gamepad) {
+        const char *padName = SDL_GetGamepadName(m_gamepad);
+        if (padName) {
+            name = QString::fromUtf8(padName);
+        }
         const SDL_GamepadType type = SDL_GetGamepadType(m_gamepad);
         const Uint16 vendor = SDL_GetGamepadVendor(m_gamepad);
+        const Uint16 product = SDL_GetGamepadProduct(m_gamepad);
+        vendorId = static_cast<int>(vendor);
+        productId = static_cast<int>(product);
         style = controllerStyleFromTypeVendor(type, vendor);
 
 #if SDL_VERSION_ATLEAST(3, 2, 0)
@@ -291,9 +316,13 @@ void GamepadManager::updateControllerInfo()
     }
 
     const bool changed = (style != m_controllerStyle) || (confirmLabel != m_confirmButtonLabel) || (backLabel != m_backButtonLabel)
-        || (detailsLabel != m_detailsButtonLabel) || (searchLabel != m_searchButtonLabel);
+        || (detailsLabel != m_detailsButtonLabel) || (searchLabel != m_searchButtonLabel) || (name != m_name) || (vendorId != m_vendorId)
+        || (productId != m_productId);
 
     m_controllerStyle = style;
+    m_name = name;
+    m_vendorId = vendorId;
+    m_productId = productId;
     m_confirmButtonLabel = confirmLabel;
     m_backButtonLabel = backLabel;
     m_detailsButtonLabel = detailsLabel;

src/gamepadmanager.h

@@ -18,6 +18,9 @@ class GamepadManager : public QObject
 
     Q_PROPERTY(bool connected READ connected NOTIFY connectedChanged)
     Q_PROPERTY(bool active READ active NOTIFY activeChanged)
+    Q_PROPERTY(QString name READ name NOTIFY controllerInfoChanged)
+    Q_PROPERTY(int vendorId READ vendorId NOTIFY controllerInfoChanged)
+    Q_PROPERTY(int productId READ productId NOTIFY controllerInfoChanged)
     Q_PROPERTY(ControllerStyle controllerStyle READ controllerStyle NOTIFY controllerInfoChanged)
     Q_PROPERTY(QString confirmButtonLabel READ confirmButtonLabel NOTIFY controllerInfoChanged)
     Q_PROPERTY(QString backButtonLabel READ backButtonLabel NOTIFY controllerInfoChanged)
@@ -40,6 +43,10 @@ public:
     bool connected() const;
     bool active() const;
 
+    QString name() const;
+    int vendorId() const;
+    int productId() const;
+
     ControllerStyle controllerStyle() const;
     QString confirmButtonLabel() const;
     QString backButtonLabel() const;
@@ -86,6 +93,10 @@ private:
     qint8 m_leftDirX = 0;
     qint8 m_leftDirY = 0;
 
+    QString m_name;
+    int m_vendorId = 0;
+    int m_productId = 0;
+
     void openFirstAvailableGamepad();
     void openGamepad(int deviceId);
     void closeGamepad();

src/input/CMakeLists.txt

@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# SPDX-FileCopyrightText: 2026 A-La-Karte Contributors
+
+add_executable(alakarte_inputd
+    main.cpp
+    inputdaemon.cpp
+    inputdaemon.h
+)
+
+target_link_libraries(alakarte_inputd PRIVATE
+    Qt6::Core
+    Qt6::DBus
+    SDL3::SDL3
+)
+
+set_target_properties(alakarte_inputd PROPERTIES
+    OUTPUT_NAME "alakarte-inputd"
+)
+
+install(TARGETS alakarte_inputd ${KDE_INSTALL_TARGETS_DEFAULT_ARGS})
+
+file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/dbus")
+file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/systemd")
+
+configure_file(dbus/org.kde.ALaKarte.Input1.service.in
+    "${CMAKE_CURRENT_BINARY_DIR}/dbus/org.kde.ALaKarte.Input1.service"
+    @ONLY
+)
+
+configure_file(systemd/org.kde.ALaKarte.Input1.service.in
+    "${CMAKE_CURRENT_BINARY_DIR}/systemd/org.kde.ALaKarte.Input1.service"
+    @ONLY
+)
+
+install(FILES "${CMAKE_CURRENT_BINARY_DIR}/dbus/org.kde.ALaKarte.Input1.service"
+    DESTINATION ${KDE_INSTALL_DBUSSERVICEDIR}
+)
+
+install(FILES "${CMAKE_CURRENT_BINARY_DIR}/systemd/org.kde.ALaKarte.Input1.service"
+    DESTINATION ${KDE_INSTALL_SYSTEMDUSERUNITDIR}
+)

src/input/dbus/org.kde.ALaKarte.Input1.service.in

@@ -0,0 +1,4 @@
+[D-BUS Service]
+Name=org.kde.ALaKarte.Input1
+Exec=@CMAKE_INSTALL_PREFIX@/@KDE_INSTALL_BINDIR@/alakarte-inputd
+SystemdService=org.kde.ALaKarte.Input1.service

src/input/inputdaemon.cpp

@@ -0,0 +1,618 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2026 A-La-Karte Contributors
+
+#include "inputdaemon.h"
+
+#include <QCoreApplication>
+#include <QDBusConnection>
+#include <QDBusConnectionInterface>
+#include <QDBusError>
+#include <QDBusReply>
+#include <QDateTime>
+#include <QDir>
+#include <QFile>
+#include <QFileInfo>
+#include <QJsonArray>
+#include <QJsonDocument>
+#include <QJsonObject>
+#include <QStandardPaths>
+
+#include <memory>
+
+#define SDL_MAIN_HANDLED 1
+#include <SDL3/SDL.h>
+#include <SDL3/SDL_main.h>
+
+static const QString kInputService = QStringLiteral("org.kde.ALaKarte.Input1");
+static const QString kInputPath = QStringLiteral("/org/kde/ALaKarte/Input1");
+static const QString kInputInterface = QStringLiteral("org.kde.ALaKarte.Input1");
+
+namespace
+{
+static QString guidToString(SDL_GUID guid)
+{
+    char buf[64] = {0};
+    SDL_GUIDToString(guid, buf, sizeof(buf));
+    return QString::fromLatin1(buf);
+}
+
+static QString powerStateToString(SDL_PowerState st)
+{
+    switch (st) {
+    case SDL_POWERSTATE_ON_BATTERY:
+        return QStringLiteral("on_battery");
+    case SDL_POWERSTATE_CHARGING:
+        return QStringLiteral("charging");
+    case SDL_POWERSTATE_CHARGED:
+        return QStringLiteral("charged");
+    case SDL_POWERSTATE_NO_BATTERY:
+        return QStringLiteral("no_battery");
+    case SDL_POWERSTATE_UNKNOWN:
+        return QStringLiteral("unknown");
+    default:
+        return QStringLiteral("error");
+    }
+}
+
+static QString connectionStateToString(SDL_JoystickConnectionState st)
+{
+    switch (st) {
+    case SDL_JOYSTICK_CONNECTION_WIRED:
+        return QStringLiteral("wired");
+    case SDL_JOYSTICK_CONNECTION_WIRELESS:
+        return QStringLiteral("wireless");
+    default:
+        return QStringLiteral("unknown");
+    }
+}
+
+static QString gamepadTypeToString(SDL_GamepadType t)
+{
+    switch (t) {
+    case SDL_GAMEPAD_TYPE_XBOX360:
+    case SDL_GAMEPAD_TYPE_XBOXONE:
+        return QStringLiteral("xbox");
+    case SDL_GAMEPAD_TYPE_PS3:
+    case SDL_GAMEPAD_TYPE_PS4:
+    case SDL_GAMEPAD_TYPE_PS5:
+        return QStringLiteral("playstation");
+    case SDL_GAMEPAD_TYPE_NINTENDO_SWITCH_PRO:
+    case SDL_GAMEPAD_TYPE_NINTENDO_SWITCH_JOYCON_LEFT:
+    case SDL_GAMEPAD_TYPE_NINTENDO_SWITCH_JOYCON_RIGHT:
+    case SDL_GAMEPAD_TYPE_NINTENDO_SWITCH_JOYCON_PAIR:
+        return QStringLiteral("nintendo");
+    case SDL_GAMEPAD_TYPE_STANDARD:
+        return QStringLiteral("standard");
+    default:
+        return QStringLiteral("unknown");
+    }
+}
+
+static QVariantMap unwrapVariantMap(QVariant v)
+{
+    if (v.canConvert<QVariantMap>()) {
+        return v.toMap();
+    }
+    return {};
+}
+}
+
+QVariantMap InputDaemon::Profile::toVariantMap() const
+{
+    QVariantMap out;
+    out.insert(QStringLiteral("id"), id);
+    out.insert(QStringLiteral("name"), name);
+    if (!mapping.isEmpty()) {
+        out.insert(QStringLiteral("mapping"), mapping);
+    }
+    return out;
+}
+
+InputDaemon::Profile InputDaemon::Profile::fromVariantMap(const QVariantMap &map)
+{
+    Profile p;
+    p.id = map.value(QStringLiteral("id")).toString();
+    p.name = map.value(QStringLiteral("name")).toString();
+    p.mapping = map.value(QStringLiteral("mapping")).toMap();
+    return p;
+}
+
+bool InputDaemon::Profile::isValid() const
+{
+    return !id.isEmpty() && !name.isEmpty();
+}
+
+InputDaemon::InputDaemon(QObject *parent)
+    : QObject(parent)
+{
+    SDL_SetMainReady();
+
+    m_pollTimer.setInterval(16);
+    connect(&m_pollTimer, &QTimer::timeout, this, &InputDaemon::pollEvents);
+
+    if (QCoreApplication::instance()) {
+        connect(QCoreApplication::instance(), &QCoreApplication::aboutToQuit, this, [this]() {
+            shutdownSdl();
+        });
+    }
+}
+
+bool InputDaemon::init()
+{
+    loadProfiles();
+
+    if (!initSdl()) {
+        qWarning() << "InputDaemon: SDL init failed" << SDL_GetError();
+        return false;
+    }
+
+    QDBusConnection bus = QDBusConnection::sessionBus();
+    if (!bus.isConnected()) {
+        qWarning() << "InputDaemon: session bus not connected";
+        return false;
+    }
+
+    if (!bus.registerService(kInputService)) {
+        qWarning() << "InputDaemon: failed to register service" << kInputService << bus.lastError().message();
+        return false;
+    }
+
+    if (!bus.registerObject(kInputPath, this, QDBusConnection::ExportAllSlots | QDBusConnection::ExportAllSignals)) {
+        qWarning() << "InputDaemon: failed to register object" << kInputPath << bus.lastError().message();
+        return false;
+    }
+
+    openExistingControllers();
+    m_pollTimer.start();
+
+    return true;
+}
+
+bool InputDaemon::initSdl()
+{
+    if (m_sdlInitialized) {
+        return true;
+    }
+
+    m_sdlInitialized = SDL_Init(SDL_INIT_GAMEPAD | SDL_INIT_JOYSTICK);
+    if (!m_sdlInitialized) {
+        return false;
+    }
+
+    SDL_SetGamepadEventsEnabled(true);
+    SDL_SetJoystickEventsEnabled(true);
+    return true;
+}
+
+void InputDaemon::shutdownSdl()
+{
+    if (!m_sdlInitialized) {
+        return;
+    }
+
+    m_pollTimer.stop();
+
+    const QList<int> keys = m_controllers.keys();
+    for (int instanceId : keys) {
+        closeController(instanceId);
+    }
+
+    SDL_Quit();
+    m_sdlInitialized = false;
+}
+
+QString InputDaemon::Ping() const
+{
+    return QStringLiteral("ok");
+}
+
+void InputDaemon::Version(uint &major, uint &minor) const
+{
+    major = 1;
+    minor = 0;
+}
+
+QVariantMap InputDaemon::GetCapabilities() const
+{
+    return {
+        {QStringLiteral("supportsBattery"), true},
+        {QStringLiteral("supportsHotplug"), true},
+        {QStringLiteral("supportsProfiles"), true},
+    };
+}
+
+QString InputDaemon::profilesPath() const
+{
+    const QString base = QStandardPaths::writableLocation(QStandardPaths::AppDataLocation);
+    return base + QStringLiteral("/input-profiles.json");
+}
+
+void InputDaemon::loadProfiles()
+{
+    m_profiles.clear();
+    m_controllerKeyToProfileId.clear();
+
+    QFile f(profilesPath());
+    if (f.open(QIODevice::ReadOnly)) {
+        const QJsonDocument doc = QJsonDocument::fromJson(f.readAll());
+        if (doc.isObject()) {
+            const QJsonObject root = doc.object();
+
+            const QJsonArray profiles = root.value(QStringLiteral("profiles")).toArray();
+            for (const QJsonValue &v : profiles) {
+                if (!v.isObject()) {
+                    continue;
+                }
+                const QVariantMap m = v.toObject().toVariantMap();
+                const Profile p = Profile::fromVariantMap(m);
+                if (p.isValid()) {
+                    m_profiles.insert(p.id, p);
+                }
+            }
+
+            const QJsonObject assignments = root.value(QStringLiteral("assignments")).toObject();
+            for (auto it = assignments.begin(); it != assignments.end(); ++it) {
+                const QString controllerKey = it.key();
+                const QString profileId = it.value().toString();
+                if (!controllerKey.isEmpty() && !profileId.isEmpty()) {
+                    m_controllerKeyToProfileId.insert(controllerKey, profileId);
+                }
+            }
+        }
+    }
+
+    if (m_profiles.isEmpty()) {
+        Profile def;
+        def.id = QStringLiteral("default");
+        def.name = QStringLiteral("Default");
+        m_profiles.insert(def.id, def);
+        saveProfiles();
+    }
+}
+
+bool InputDaemon::saveProfiles() const
+{
+    const QString path = profilesPath();
+    QDir().mkpath(QFileInfo(path).absolutePath());
+
+    QJsonArray profiles;
+    for (const Profile &p : m_profiles) {
+        profiles.push_back(QJsonObject::fromVariantMap(p.toVariantMap()));
+    }
+
+    QJsonObject assignments;
+    for (auto it = m_controllerKeyToProfileId.constBegin(); it != m_controllerKeyToProfileId.constEnd(); ++it) {
+        assignments.insert(it.key(), it.value());
+    }
+
+    QJsonObject root;
+    root.insert(QStringLiteral("profiles"), profiles);
+    root.insert(QStringLiteral("assignments"), assignments);
+
+    QFile f(path);
+    if (!f.open(QIODevice::WriteOnly | QIODevice::Truncate)) {
+        return false;
+    }
+
+    f.write(QJsonDocument(root).toJson());
+    return true;
+}
+
+InputDaemon::Profile InputDaemon::profileById(const QString &profileId) const
+{
+    auto it = m_profiles.constFind(profileId);
+    if (it == m_profiles.constEnd()) {
+        return {};
+    }
+    return it.value();
+}
+
+QVariantList InputDaemon::ListProfiles() const
+{
+    QVariantList out;
+    out.reserve(m_profiles.size());
+
+    for (const Profile &p : m_profiles) {
+        out.push_back(p.toVariantMap());
+    }
+
+    return out;
+}
+
+QVariantMap InputDaemon::GetProfile(const QString &profileId) const
+{
+    const Profile p = profileById(profileId);
+    return p.toVariantMap();
+}
+
+QString InputDaemon::CreateProfile(const QString &name)
+{
+    const QString trimmed = name.trimmed();
+    if (trimmed.isEmpty()) {
+        return {};
+    }
+
+    const QString id = QString::number(QDateTime::currentMSecsSinceEpoch(), 16);
+
+    Profile p;
+    p.id = QStringLiteral("p_") + id;
+    p.name = trimmed;
+
+    if (!p.isValid()) {
+        return {};
+    }
+
+    m_profiles.insert(p.id, p);
+    saveProfiles();
+    Q_EMIT ProfilesChanged();
+
+    return p.id;
+}
+
+bool InputDaemon::DeleteProfile(const QString &profileId)
+{
+    if (profileId == QLatin1String("default")) {
+        return false;
+    }
+
+    if (!m_profiles.contains(profileId)) {
+        return false;
+    }
+
+    m_profiles.remove(profileId);
+
+    for (auto it = m_controllerKeyToProfileId.begin(); it != m_controllerKeyToProfileId.end();) {
+        if (it.value() == profileId) {
+            it = m_controllerKeyToProfileId.erase(it);
+        } else {
+            ++it;
+        }
+    }
+
+    saveProfiles();
+    Q_EMIT ProfilesChanged();
+    return true;
+}
+
+QString InputDaemon::controllerKeyForProfile(const Controller &c) const
+{
+    if (!c.guid.isEmpty() && c.vendorId > 0 && c.productId > 0) {
+        return QStringLiteral("guid:%1:%2:%3").arg(c.guid).arg(c.vendorId).arg(c.productId);
+    }
+    if (!c.guid.isEmpty()) {
+        return QStringLiteral("guid:%1").arg(c.guid);
+    }
+    if (!c.path.isEmpty()) {
+        return QStringLiteral("path:%1").arg(c.path);
+    }
+    return c.controllerId;
+}
+
+QString InputDaemon::GetActiveProfile(const QString &controllerId) const
+{
+    for (const Controller &c : m_controllers) {
+        if (c.controllerId == controllerId) {
+            const QString key = controllerKeyForProfile(c);
+            return m_controllerKeyToProfileId.value(key, QStringLiteral("default"));
+        }
+    }
+    return QStringLiteral("default");
+}
+
+bool InputDaemon::SetActiveProfile(const QString &controllerId, const QString &profileId)
+{
+    if (!m_profiles.contains(profileId)) {
+        return false;
+    }
+
+    for (const Controller &c : m_controllers) {
+        if (c.controllerId == controllerId) {
+            const QString key = controllerKeyForProfile(c);
+            m_controllerKeyToProfileId.insert(key, profileId);
+            saveProfiles();
+            Q_EMIT ControllerProfileChanged(controllerId, profileId);
+            Q_EMIT ControllerChanged(controllerToVariantMap(c));
+            return true;
+        }
+    }
+
+    return false;
+}
+
+QVariantMap InputDaemon::controllerToVariantMap(const Controller &c) const
+{
+    QVariantMap out;
+    out.insert(QStringLiteral("controllerId"), c.controllerId);
+    out.insert(QStringLiteral("instanceId"), c.instanceId);
+    out.insert(QStringLiteral("guid"), c.guid);
+    out.insert(QStringLiteral("name"), c.name);
+    out.insert(QStringLiteral("path"), c.path);
+    out.insert(QStringLiteral("vendorId"), c.vendorId);
+    out.insert(QStringLiteral("productId"), c.productId);
+    out.insert(QStringLiteral("type"), c.type);
+    out.insert(QStringLiteral("connectionState"), c.connectionState);
+
+    out.insert(QStringLiteral("batteryState"), c.batteryState);
+    out.insert(QStringLiteral("batteryStateName"), powerStateToString(static_cast<SDL_PowerState>(c.batteryState)));
+    out.insert(QStringLiteral("batteryPercent"), c.batteryPercent);
+
+    const QString activeId = m_controllerKeyToProfileId.value(controllerKeyForProfile(c), QStringLiteral("default"));
+    out.insert(QStringLiteral("activeProfileId"), activeId);
+    out.insert(QStringLiteral("activeProfileName"), profileById(activeId).name);
+
+    return out;
+}
+
+QVariantList InputDaemon::ListControllers() const
+{
+    QVariantList out;
+    out.reserve(m_controllers.size());
+
+    for (const Controller &c : m_controllers) {
+        out.push_back(controllerToVariantMap(c));
+    }
+
+    return out;
+}
+
+QVariantMap InputDaemon::GetController(const QString &controllerId) const
+{
+    for (const Controller &c : m_controllers) {
+        if (c.controllerId == controllerId) {
+            return controllerToVariantMap(c);
+        }
+    }
+    return {};
+}
+
+bool InputDaemon::Rescan()
+{
+    openExistingControllers();
+    return true;
+}
+
+void InputDaemon::openExistingControllers()
+{
+    if (!m_sdlInitialized) {
+        return;
+    }
+
+    int count = 0;
+    std::unique_ptr<SDL_JoystickID[], decltype(&SDL_free)> ids(SDL_GetGamepads(&count), SDL_free);
+    if (!ids || count <= 0) {
+        return;
+    }
+
+    for (int i = 0; i < count; ++i) {
+        const int instanceId = static_cast<int>(ids[i]);
+        if (!m_controllers.contains(instanceId)) {
+            openController(instanceId);
+        }
+    }
+}
+
+void InputDaemon::refreshControllerPower(Controller &c)
+{
+    if (!c.pad) {
+        c.batteryState = static_cast<int>(SDL_POWERSTATE_UNKNOWN);
+        c.batteryPercent = -1;
+        return;
+    }
+
+    int percent = -1;
+    const SDL_PowerState st = SDL_GetGamepadPowerInfo(c.pad, &percent);
+    c.batteryState = static_cast<int>(st);
+    c.batteryPercent = percent;
+}
+
+void InputDaemon::openController(int instanceId)
+{
+    if (!m_sdlInitialized) {
+        return;
+    }
+
+    if (m_controllers.contains(instanceId)) {
+        return;
+    }
+
+    SDL_Gamepad *pad = SDL_OpenGamepad(static_cast<SDL_JoystickID>(instanceId));
+    if (!pad) {
+        return;
+    }
+
+    Controller c;
+    c.pad = pad;
+    c.instanceId = instanceId;
+    c.controllerId = QStringLiteral("sdl:%1").arg(instanceId);
+
+    c.guid = guidToString(SDL_GetGamepadGUIDForID(static_cast<SDL_JoystickID>(instanceId)));
+
+    const char *name = SDL_GetGamepadName(pad);
+    if (name) {
+        c.name = QString::fromUtf8(name);
+    }
+
+    const char *path = SDL_GetGamepadPath(pad);
+    if (path) {
+        c.path = QString::fromUtf8(path);
+    }
+
+    c.vendorId = SDL_GetGamepadVendor(pad);
+    c.productId = SDL_GetGamepadProduct(pad);
+    c.type = gamepadTypeToString(SDL_GetGamepadType(pad));
+    c.connectionState = connectionStateToString(SDL_GetGamepadConnectionState(pad));
+
+    refreshControllerPower(c);
+
+    m_controllers.insert(instanceId, c);
+    Q_EMIT ControllerAdded(controllerToVariantMap(c));
+}
+
+void InputDaemon::closeController(int instanceId)
+{
+    auto it = m_controllers.find(instanceId);
+    if (it == m_controllers.end()) {
+        return;
+    }
+
+    const QString controllerId = it.value().controllerId;
+
+    if (it.value().pad) {
+        SDL_CloseGamepad(it.value().pad);
+        it.value().pad = nullptr;
+    }
+
+    m_controllers.erase(it);
+    Q_EMIT ControllerRemoved(controllerId);
+}
+
+void InputDaemon::pollEvents()
+{
+    if (!m_sdlInitialized) {
+        return;
+    }
+
+    SDL_Event e;
+    bool anyChanged = false;
+
+    while (SDL_PollEvent(&e)) {
+        switch (e.type) {
+        case SDL_EVENT_GAMEPAD_ADDED:
+            openController(static_cast<int>(e.gdevice.which));
+            break;
+        case SDL_EVENT_GAMEPAD_REMOVED:
+            closeController(static_cast<int>(e.gdevice.which));
+            break;
+        case SDL_EVENT_JOYSTICK_BATTERY_UPDATED: {
+            const int instanceId = static_cast<int>(e.jbattery.which);
+            auto it = m_controllers.find(instanceId);
+            if (it == m_controllers.end()) {
+                break;
+            }
+            it.value().batteryState = static_cast<int>(e.jbattery.state);
+            it.value().batteryPercent = e.jbattery.percent;
+            Q_EMIT ControllerChanged(controllerToVariantMap(it.value()));
+            anyChanged = true;
+            break;
+        }
+        default:
+            break;
+        }
+    }
+
+    const qint64 nowMs = QDateTime::currentMSecsSinceEpoch();
+    if (m_lastPowerRefreshMs <= 0 || (nowMs - m_lastPowerRefreshMs) > 5000) {
+        m_lastPowerRefreshMs = nowMs;
+        for (auto it = m_controllers.begin(); it != m_controllers.end(); ++it) {
+            const int oldPercent = it.value().batteryPercent;
+            const int oldState = it.value().batteryState;
+            refreshControllerPower(it.value());
+            if (it.value().batteryPercent != oldPercent || it.value().batteryState != oldState) {
+                Q_EMIT ControllerChanged(controllerToVariantMap(it.value()));
+                anyChanged = true;
+            }
+        }
+    }
+
+    Q_UNUSED(anyChanged)
+}

src/input/inputdaemon.h

@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2026 A-La-Karte Contributors
+
+#pragma once
+
+#include <QHash>
+#include <QObject>
+#include <QString>
+#include <QTimer>
+#include <QVariantList>
+#include <QVariantMap>
+
+struct SDL_Gamepad;
+
+class InputDaemon : public QObject
+{
+    Q_OBJECT
+    Q_CLASSINFO("D-Bus Interface", "org.kde.ALaKarte.Input1")
+
+public:
+    explicit InputDaemon(QObject *parent = nullptr);
+
+    bool init();
+
+public Q_SLOTS:
+    QString Ping() const;
+    void Version(uint &major, uint &minor) const;
+    QVariantMap GetCapabilities() const;
+
+    QVariantList ListControllers() const;
+    QVariantMap GetController(const QString &controllerId) const;
+    bool Rescan();
+
+    QVariantList ListProfiles() const;
+    QVariantMap GetProfile(const QString &profileId) const;
+    QString CreateProfile(const QString &name);
+    bool DeleteProfile(const QString &profileId);
+
+    bool SetActiveProfile(const QString &controllerId, const QString &profileId);
+    QString GetActiveProfile(const QString &controllerId) const;
+
+Q_SIGNALS:
+    void ControllerAdded(const QVariantMap &controller);
+    void ControllerRemoved(const QString &controllerId);
+    void ControllerChanged(const QVariantMap &controller);
+
+    void ProfilesChanged();
+    void ControllerProfileChanged(const QString &controllerId, const QString &profileId);
+
+private:
+    struct Controller {
+        SDL_Gamepad *pad = nullptr;
+        int instanceId = 0;
+        QString controllerId;
+        QString guid;
+        QString name;
+        QString path;
+        uint vendorId = 0;
+        uint productId = 0;
+        QString type;
+        QString connectionState;
+        int batteryState = 0;
+        int batteryPercent = -1;
+    };
+
+    struct Profile {
+        QString id;
+        QString name;
+        QVariantMap mapping;
+
+        QVariantMap toVariantMap() const;
+        static Profile fromVariantMap(const QVariantMap &map);
+        bool isValid() const;
+    };
+
+    bool initSdl();
+    void shutdownSdl();
+
+    void pollEvents();
+
+    void openExistingControllers();
+    void openController(int instanceId);
+    void closeController(int instanceId);
+
+    void refreshControllerPower(Controller &c);
+
+    QString controllerKeyForProfile(const Controller &c) const;
+    QVariantMap controllerToVariantMap(const Controller &c) const;
+
+    QString profilesPath() const;
+    void loadProfiles();
+    bool saveProfiles() const;
+
+    Profile profileById(const QString &profileId) const;
+
+    QHash<int, Controller> m_controllers;
+
+    QHash<QString, Profile> m_profiles;
+    QHash<QString, QString> m_controllerKeyToProfileId;
+
+    bool m_sdlInitialized = false;
+    QTimer m_pollTimer;
+    qint64 m_lastPowerRefreshMs = 0;
+};

src/input/main.cpp

@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2026 A-La-Karte Contributors
+
+#include <QCoreApplication>
+
+#include "inputdaemon.h"
+
+int main(int argc, char *argv[])
+{
+    QCoreApplication app(argc, argv);
+    QCoreApplication::setApplicationName(QStringLiteral("alakarte"));
+
+    InputDaemon daemon;
+    if (!daemon.init()) {
+        return 1;
+    }
+
+    return app.exec();
+}

src/input/systemd/org.kde.ALaKarte.Input1.service.in

@@ -0,0 +1,9 @@
+[Unit]
+Description=A-La-Karte Input Service
+PartOf=graphical-session.target
+
+[Service]
+ExecStart=@CMAKE_INSTALL_PREFIX@/@KDE_INSTALL_BINDIR@/alakarte-inputd
+Type=dbus
+BusName=org.kde.ALaKarte.Input1
+Restart=no

src/inputserviceclient.cpp

@@ -0,0 +1,354 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2026 A-La-Karte Contributors
+
+#include "inputserviceclient.h"
+
+#include <QCoreApplication>
+#include <QDBusConnection>
+#include <QDBusConnectionInterface>
+#include <QDBusError>
+#include <QDBusInterface>
+#include <QDBusReply>
+#include <QDBusServiceWatcher>
+#include <QDBusVariant>
+
+static const QString kInputService = QStringLiteral("org.kde.ALaKarte.Input1");
+static const QString kInputPath = QStringLiteral("/org/kde/ALaKarte/Input1");
+static const QString kInputInterface = QStringLiteral("org.kde.ALaKarte.Input1");
+
+namespace
+{
+static QVariant unwrapDbusVariant(QVariant v)
+{
+    if (v.canConvert<QDBusVariant>()) {
+        v = v.value<QDBusVariant>().variant();
+    }
+    return v;
+}
+
+static QVariantMap unwrapVariantMap(QVariant v)
+{
+    v = unwrapDbusVariant(v);
+    if (v.canConvert<QVariantMap>()) {
+        return v.toMap();
+    }
+    return {};
+}
+
+static QVariantMap normalizeMap(QVariantMap m)
+{
+    for (auto it = m.begin(); it != m.end(); ++it) {
+        it.value() = unwrapDbusVariant(it.value());
+    }
+    return m;
+}
+}
+
+InputServiceClient::InputServiceClient(QObject *parent)
+    : QObject(parent)
+{
+    QDBusConnection bus = QDBusConnection::sessionBus();
+    if (bus.isConnected()) {
+        m_watcher = new QDBusServiceWatcher(kInputService, bus, QDBusServiceWatcher::WatchForRegistration | QDBusServiceWatcher::WatchForUnregistration, this);
+        connect(m_watcher, &QDBusServiceWatcher::serviceRegistered, this, [this]() {
+            setAvailable(true);
+            connectSignals();
+            refresh();
+        });
+        connect(m_watcher, &QDBusServiceWatcher::serviceUnregistered, this, [this]() {
+            setAvailable(false);
+            m_controllers.clear();
+            m_profiles.clear();
+            Q_EMIT controllersChanged();
+            Q_EMIT profilesChanged();
+        });
+    }
+
+    if (QCoreApplication::instance()) {
+        connect(QCoreApplication::instance(), &QCoreApplication::aboutToQuit, this, [this]() {
+            m_connectedSignals = false;
+        });
+    }
+
+    ensureService();
+    refresh();
+}
+
+InputServiceClient::~InputServiceClient() = default;
+
+bool InputServiceClient::available() const
+{
+    return m_available;
+}
+
+QString InputServiceClient::lastError() const
+{
+    return m_lastError;
+}
+
+QVariantList InputServiceClient::controllers() const
+{
+    return m_controllers;
+}
+
+QVariantList InputServiceClient::profiles() const
+{
+    return m_profiles;
+}
+
+void InputServiceClient::setAvailable(bool available)
+{
+    if (m_available == available) {
+        return;
+    }
+    m_available = available;
+    Q_EMIT availableChanged();
+}
+
+void InputServiceClient::setLastError(const QString &error)
+{
+    if (m_lastError == error) {
+        return;
+    }
+    m_lastError = error;
+    Q_EMIT lastErrorChanged();
+}
+
+void InputServiceClient::ensureService()
+{
+    QDBusConnection bus = QDBusConnection::sessionBus();
+    if (!bus.isConnected() || !bus.interface()) {
+        setAvailable(false);
+        setLastError(QStringLiteral("session bus not available"));
+        return;
+    }
+
+    if (bus.interface()->isServiceRegistered(kInputService)) {
+        setAvailable(true);
+        connectSignals();
+        return;
+    }
+
+    bool activatable = false;
+    {
+        const QDBusReply<QStringList> names = bus.interface()->activatableServiceNames();
+        if (names.isValid()) {
+            activatable = names.value().contains(kInputService);
+        }
+    }
+
+    const QDBusReply<void> reply = bus.interface()->startService(kInputService);
+    if (reply.isValid() || bus.interface()->isServiceRegistered(kInputService)) {
+        setAvailable(true);
+        connectSignals();
+        return;
+    }
+
+    setAvailable(false);
+    if (activatable) {
+        setLastError(reply.error().message());
+    } else {
+        setLastError(QStringLiteral("Input service is not available (missing DBus activation for org.kde.ALaKarte.Input1)"));
+    }
+}
+
+void InputServiceClient::connectSignals()
+{
+    if (m_connectedSignals) {
+        return;
+    }
+
+    QDBusConnection bus = QDBusConnection::sessionBus();
+    if (!bus.isConnected()) {
+        return;
+    }
+
+    const bool ok1 = bus.connect(kInputService, kInputPath, kInputInterface, QStringLiteral("ControllerAdded"), this, SLOT(onControllerAdded(QVariantMap)));
+
+    const bool ok2 = bus.connect(kInputService, kInputPath, kInputInterface, QStringLiteral("ControllerChanged"), this, SLOT(onControllerChanged(QVariantMap)));
+
+    const bool ok3 = bus.connect(kInputService, kInputPath, kInputInterface, QStringLiteral("ControllerRemoved"), this, SLOT(onControllerRemoved(QString)));
+
+    const bool ok4 = bus.connect(kInputService, kInputPath, kInputInterface, QStringLiteral("ProfilesChanged"), this, SLOT(onProfilesChanged()));
+
+    m_connectedSignals = ok1 && ok2 && ok3 && ok4;
+}
+
+void InputServiceClient::onControllerAdded(QVariantMap controller)
+{
+    upsertController(normalizeMap(controller));
+}
+
+void InputServiceClient::onControllerChanged(QVariantMap controller)
+{
+    upsertController(normalizeMap(controller));
+}
+
+void InputServiceClient::onControllerRemoved(const QString &controllerId)
+{
+    removeControllerById(controllerId);
+}
+
+void InputServiceClient::onProfilesChanged()
+{
+    refreshProfiles();
+}
+
+void InputServiceClient::upsertController(const QVariantMap &controller)
+{
+    const QString id = controller.value(QStringLiteral("controllerId")).toString();
+    if (id.isEmpty()) {
+        return;
+    }
+
+    for (int i = 0; i < m_controllers.size(); ++i) {
+        const QVariantMap existing = m_controllers.at(i).toMap();
+        if (existing.value(QStringLiteral("controllerId")).toString() == id) {
+            m_controllers[i] = controller;
+            Q_EMIT controllersChanged();
+            return;
+        }
+    }
+
+    m_controllers.push_back(controller);
+    Q_EMIT controllersChanged();
+}
+
+void InputServiceClient::removeControllerById(const QString &controllerId)
+{
+    if (controllerId.isEmpty()) {
+        return;
+    }
+
+    for (int i = 0; i < m_controllers.size(); ++i) {
+        const QVariantMap existing = m_controllers.at(i).toMap();
+        if (existing.value(QStringLiteral("controllerId")).toString() == controllerId) {
+            m_controllers.removeAt(i);
+            Q_EMIT controllersChanged();
+            return;
+        }
+    }
+}
+
+void InputServiceClient::refresh()
+{
+    refreshControllers();
+    refreshProfiles();
+}
+
+void InputServiceClient::refreshControllers()
+{
+    ensureService();
+    if (!m_available) {
+        return;
+    }
+
+    QDBusInterface i(kInputService, kInputPath, kInputInterface, QDBusConnection::sessionBus());
+    i.setTimeout(2000);
+
+    const QDBusReply<bool> rescanReply = i.call(QStringLiteral("Rescan"));
+    if (!rescanReply.isValid()) {
+        setLastError(rescanReply.error().message());
+    }
+
+    const QDBusReply<QVariantList> reply = i.call(QStringLiteral("ListControllers"));
+
+    if (!reply.isValid()) {
+        setLastError(reply.error().message());
+        return;
+    }
+
+    m_controllers.clear();
+    const QVariantList list = reply.value();
+    m_controllers.reserve(list.size());
+    for (const QVariant &v : list) {
+        m_controllers.push_back(unwrapVariantMap(v));
+    }
+    Q_EMIT controllersChanged();
+}
+
+void InputServiceClient::refreshProfiles()
+{
+    ensureService();
+    if (!m_available) {
+        return;
+    }
+
+    QDBusInterface i(kInputService, kInputPath, kInputInterface, QDBusConnection::sessionBus());
+    i.setTimeout(2000);
+    const QDBusReply<QVariantList> reply = i.call(QStringLiteral("ListProfiles"));
+
+    if (!reply.isValid()) {
+        setLastError(reply.error().message());
+        return;
+    }
+
+    m_profiles.clear();
+    const QVariantList list = reply.value();
+    m_profiles.reserve(list.size());
+    for (const QVariant &v : list) {
+        m_profiles.push_back(unwrapVariantMap(v));
+    }
+
+    Q_EMIT profilesChanged();
+}
+
+bool InputServiceClient::setActiveProfile(const QString &controllerId, const QString &profileId)
+{
+    ensureService();
+    if (!m_available) {
+        return false;
+    }
+
+    QDBusInterface i(kInputService, kInputPath, kInputInterface, QDBusConnection::sessionBus());
+    i.setTimeout(2000);
+    const QDBusReply<bool> reply = i.call(QStringLiteral("SetActiveProfile"), controllerId, profileId);
+
+    if (!reply.isValid()) {
+        setLastError(reply.error().message());
+        return false;
+    }
+
+    return reply.value();
+}
+
+QString InputServiceClient::createProfile(const QString &name)
+{
+    ensureService();
+    if (!m_available) {
+        return {};
+    }
+
+    QDBusInterface i(kInputService, kInputPath, kInputInterface, QDBusConnection::sessionBus());
+    i.setTimeout(2000);
+    const QDBusReply<QString> reply = i.call(QStringLiteral("CreateProfile"), name);
+
+    if (!reply.isValid()) {
+        setLastError(reply.error().message());
+        return {};
+    }
+
+    refreshProfiles();
+    return reply.value();
+}
+
+bool InputServiceClient::deleteProfile(const QString &profileId)
+{
+    ensureService();
+    if (!m_available) {
+        return false;
+    }
+
+    QDBusInterface i(kInputService, kInputPath, kInputInterface, QDBusConnection::sessionBus());
+    i.setTimeout(2000);
+    const QDBusReply<bool> reply = i.call(QStringLiteral("DeleteProfile"), profileId);
+
+    if (!reply.isValid()) {
+        setLastError(reply.error().message());
+        return false;
+    }
+
+    refreshProfiles();
+    refreshControllers();
+    return reply.value();
+}

src/inputserviceclient.h

@@ -0,0 +1,68 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2026 A-La-Karte Contributors
+
+#pragma once
+
+#include <QObject>
+#include <QString>
+#include <QVariantList>
+#include <QVariantMap>
+
+class QDBusServiceWatcher;
+
+class InputServiceClient : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY(bool available READ available NOTIFY availableChanged)
+    Q_PROPERTY(QString lastError READ lastError NOTIFY lastErrorChanged)
+    Q_PROPERTY(QVariantList controllers READ controllers NOTIFY controllersChanged)
+    Q_PROPERTY(QVariantList profiles READ profiles NOTIFY profilesChanged)
+
+public:
+    explicit InputServiceClient(QObject *parent = nullptr);
+    ~InputServiceClient() override;
+
+    bool available() const;
+    QString lastError() const;
+
+    QVariantList controllers() const;
+    QVariantList profiles() const;
+
+    Q_INVOKABLE void refresh();
+    Q_INVOKABLE void refreshControllers();
+    Q_INVOKABLE void refreshProfiles();
+
+    Q_INVOKABLE bool setActiveProfile(const QString &controllerId, const QString &profileId);
+    Q_INVOKABLE QString createProfile(const QString &name);
+    Q_INVOKABLE bool deleteProfile(const QString &profileId);
+
+Q_SIGNALS:
+    void availableChanged();
+    void lastErrorChanged();
+    void controllersChanged();
+    void profilesChanged();
+
+private Q_SLOTS:
+    void onControllerAdded(QVariantMap controller);
+    void onControllerChanged(QVariantMap controller);
+    void onControllerRemoved(const QString &controllerId);
+    void onProfilesChanged();
+
+private:
+    void ensureService();
+    void connectSignals();
+    void setAvailable(bool available);
+    void setLastError(const QString &error);
+
+    void upsertController(const QVariantMap &controller);
+    void removeControllerById(const QString &controllerId);
+
+    bool m_available = false;
+    QString m_lastError;
+
+    QVariantList m_controllers;
+    QVariantList m_profiles;
+
+    QDBusServiceWatcher *m_watcher = nullptr;
+    bool m_connectedSignals = false;
+};

src/krunner/alakarterunner.cpp

@@ -185,18 +185,6 @@ void AlakarteRunner::run(const KRunner::RunnerContext &context, const KRunner::Q
             return;
         }
     }
-
-    // Fallback: daemon unavailable or no game ID
-    if (command.startsWith(QLatin1String("steam://")) || command.startsWith(QLatin1String("lutris:"))) {
-        QProcess::startDetached(QStringLiteral("xdg-open"), {command});
-        return;
-    }
-
-    QStringList args = QProcess::splitCommand(command);
-    if (!args.isEmpty()) {
-        QString program = args.takeFirst();
-        QProcess::startDetached(program, args);
-    }
 }
 
 #include "alakarterunner.moc"

src/runner/runnermanagerdaemon.cpp

@@ -4,10 +4,12 @@
 #include "runnermanagerdaemon.h"
 
 #include <QCryptographicHash>
+#include <QDBusArgument>
 #include <QDBusConnection>
 #include <QDBusError>
 #include <QDBusMessage>
 #include <QDBusReply>
+#include <QDBusVariant>
 #include <QDir>
 #include <QDirIterator>
 #include <QEventLoop>
@@ -32,6 +34,52 @@
 static const QString kRunnerService = QStringLiteral("org.kde.ALaKarte.Runner1");
 static const QString kRunnerPath = QStringLiteral("/org/kde/ALaKarte/Runner1");
 
+static QVariant unwrapDbusVariant(QVariant v)
+{
+    if (v.metaType() == QMetaType::fromType<QDBusVariant>()) {
+        v = v.value<QDBusVariant>().variant();
+    }
+    return v;
+}
+
+static QVariantMap unwrapVariantMap(QVariant v)
+{
+    v = unwrapDbusVariant(v);
+    if (v.metaType() == QMetaType::fromType<QDBusArgument>()) {
+        const QDBusArgument arg = v.value<QDBusArgument>();
+        return qdbus_cast<QVariantMap>(arg);
+    }
+    if (v.canConvert<QVariantMap>()) {
+        return v.toMap();
+    }
+    return {};
+}
+
+static QStringList unwrapStringList(QVariant v)
+{
+    v = unwrapDbusVariant(v);
+    if (v.metaType() == QMetaType::fromType<QDBusArgument>()) {
+        const QDBusArgument arg = v.value<QDBusArgument>();
+        return qdbus_cast<QStringList>(arg);
+    }
+    if (v.canConvert<QStringList>()) {
+        return v.toStringList();
+    }
+    if (v.canConvert<QVariantList>()) {
+        const QVariantList list = v.toList();
+        QStringList out;
+        out.reserve(list.size());
+        for (const QVariant &item : list) {
+            const QString s = item.toString();
+            if (!s.isEmpty()) {
+                out.push_back(s);
+            }
+        }
+        return out;
+    }
+    return {};
+}
+
 static QString stableIdForPath(const QString &prefix, const QString &path)
 {
     const QByteArray digest = QCryptographicHash::hash(path.toUtf8(), QCryptographicHash::Sha1).toHex();
@@ -46,6 +94,7 @@ RunnerManagerDaemon::RunnerManagerDaemon(QObject *parent)
 bool RunnerManagerDaemon::init()
 {
     loadRegistry();
+    loadGameProfiles();
     m_discovered = discoverRunners();
 
     QDBusConnection bus = QDBusConnection::sessionBus();
@@ -181,6 +230,76 @@ bool RunnerManagerDaemon::saveRegistry() const
     return true;
 }
 
+QString RunnerManagerDaemon::gameProfilesPath() const
+{
+    const QString base = QStandardPaths::writableLocation(QStandardPaths::AppDataLocation);
+    return base + QStringLiteral("/runner-game-profiles.json");
+}
+
+void RunnerManagerDaemon::loadGameProfiles()
+{
+    m_gameProfiles.clear();
+
+    QFile f(gameProfilesPath());
+    if (!f.open(QIODevice::ReadOnly)) {
+        return;
+    }
+
+    const QJsonDocument doc = QJsonDocument::fromJson(f.readAll());
+    if (!doc.isObject()) {
+        return;
+    }
+
+    const QJsonArray arr = doc.object().value(QStringLiteral("profiles")).toArray();
+    for (const QJsonValue &v : arr) {
+        if (!v.isObject()) {
+            continue;
+        }
+        const QVariantMap map = v.toObject().toVariantMap();
+        const QString gameId = map.value(QStringLiteral("gameId")).toString();
+        if (gameId.isEmpty()) {
+            continue;
+        }
+        m_gameProfiles.insert(gameId, map);
+    }
+}
+
+bool RunnerManagerDaemon::saveGameProfiles() const
+{
+    const QString path = gameProfilesPath();
+    QDir().mkpath(QFileInfo(path).absolutePath());
+
+    QJsonArray arr;
+    for (auto it = m_gameProfiles.constBegin(); it != m_gameProfiles.constEnd(); ++it) {
+        QVariantMap profile = it.value();
+        if (!profile.contains(QStringLiteral("gameId"))) {
+            profile.insert(QStringLiteral("gameId"), it.key());
+        }
+        arr.push_back(QJsonObject::fromVariantMap(profile));
+    }
+
+    QJsonObject root;
+    root.insert(QStringLiteral("profiles"), arr);
+
+    QFile f(path);
+    if (!f.open(QIODevice::WriteOnly | QIODevice::Truncate)) {
+        return false;
+    }
+
+    f.write(QJsonDocument(root).toJson(QJsonDocument::Indented));
+    return true;
+}
+
+QVariantMap RunnerManagerDaemon::gameProfileForGameId(const QString &gameId) const
+{
+    const QString id = gameId.trimmed();
+    if (id.isEmpty()) {
+        return {};
+    }
+    const auto it = m_gameProfiles.constFind(id);
+    return it == m_gameProfiles.constEnd() ? QVariantMap{} : it.value();
+}
+
 QStringList RunnerManagerDaemon::steamCandidateRoots()
 {
     const QString home = QDir::homePath();
@@ -998,14 +1117,192 @@ QVariantMap RunnerManagerDaemon::DeletePrefix(const QVariantMap &spec)
     return out;
 }
 
+QVariantMap RunnerManagerDaemon::GetGameProfile(const QString &gameId) const
+{
+    QVariantMap out;
+    out.insert(QStringLiteral("ok"), false);
+
+    const QString id = gameId.trimmed();
+    if (id.isEmpty()) {
+        out.insert(QStringLiteral("error"), QStringLiteral("missing gameId"));
+        return out;
+    }
+
+    const QVariantMap profile = gameProfileForGameId(id);
+    out.insert(QStringLiteral("ok"), true);
+    out.insert(QStringLiteral("profile"), profile);
+    return out;
+}
+
+QVariantList RunnerManagerDaemon::ListGameProfiles() const
+{
+    QVariantList out;
+    out.reserve(m_gameProfiles.size());
+    for (auto it = m_gameProfiles.constBegin(); it != m_gameProfiles.constEnd(); ++it) {
+        QVariantMap profile = it.value();
+        if (!profile.contains(QStringLiteral("gameId"))) {
+            profile.insert(QStringLiteral("gameId"), it.key());
+        }
+        out.push_back(profile);
+    }
+    return out;
+}
+
+QVariantMap RunnerManagerDaemon::SetGameProfile(const QVariantMap &spec)
+{
+    QVariantMap out;
+    out.insert(QStringLiteral("ok"), false);
+
+    const QString gameId = spec.value(QStringLiteral("gameId")).toString().trimmed();
+    if (gameId.isEmpty()) {
+        out.insert(QStringLiteral("error"), QStringLiteral("missing gameId"));
+        return out;
+    }
+
+    QVariantMap profile;
+    profile.insert(QStringLiteral("gameId"), gameId);
+
+    auto takeStringIfPresent = [&](const QString &key) {
+        if (!spec.contains(key)) {
+            return;
+        }
+        const QString v = spec.value(key).toString().trimmed();
+        if (!v.isEmpty()) {
+            profile.insert(key, v);
+        }
+    };
+
+    takeStringIfPresent(QStringLiteral("runnerId"));
+    takeStringIfPresent(QStringLiteral("runner"));
+    takeStringIfPresent(QStringLiteral("runnerPath"));
+    takeStringIfPresent(QStringLiteral("prefixPath"));
+
+    if (spec.contains(QStringLiteral("dllOverrides"))) {
+        const QVariantMap raw = unwrapVariantMap(spec.value(QStringLiteral("dllOverrides")));
+        QVariantMap dllOverrides;
+        for (auto it = raw.constBegin(); it != raw.constEnd(); ++it) {
+            const QString key = it.key().trimmed();
+            if (key.isEmpty() || key.contains(QLatin1Char('=')) || key.contains(QLatin1Char(';'))) {
+                continue;
+            }
+            const QString value = it.value().toString().trimmed();
+            if (value.isEmpty()) {
+                continue;
+            }
+            dllOverrides.insert(key, value);
+        }
+        if (!dllOverrides.isEmpty()) {
+            profile.insert(QStringLiteral("dllOverrides"), dllOverrides);
+        }
+    }
+
+    if (spec.contains(QStringLiteral("envOverrides"))) {
+        const QVariantMap rawEnv = unwrapVariantMap(spec.value(QStringLiteral("envOverrides")));
+        QVariantMap env;
+        for (auto it = rawEnv.constBegin(); it != rawEnv.constEnd(); ++it) {
+            const QString key = it.key();
+            if (key.isEmpty() || key.contains(QLatin1Char('='))) {
+                continue;
+            }
+            env.insert(key, it.value().toString());
+        }
+        if (!env.isEmpty()) {
+            profile.insert(QStringLiteral("envOverrides"), env);
+        }
+    }
+
+    if (spec.contains(QStringLiteral("extraArgs"))) {
+        const QStringList raw = unwrapStringList(spec.value(QStringLiteral("extraArgs")));
+        QStringList extraArgs;
+        extraArgs.reserve(raw.size());
+        for (const QString &a : raw) {
+            const QString trimmed = a.trimmed();
+            if (!trimmed.isEmpty()) {
+                extraArgs.push_back(trimmed);
+            }
+        }
+        if (!extraArgs.isEmpty()) {
+            profile.insert(QStringLiteral("extraArgs"), extraArgs);
+        }
+    }
+
+    if (profile.size() <= 1) {
+        out.insert(QStringLiteral("error"), QStringLiteral("empty profile"));
+        return out;
+    }
+
+    m_gameProfiles.insert(gameId, profile);
+    if (!saveGameProfiles()) {
+        out.insert(QStringLiteral("error"), QStringLiteral("failed to save game profiles"));
+        return out;
+    }
+
+    Q_EMIT GameProfilesChanged();
+    out.insert(QStringLiteral("ok"), true);
+    out.insert(QStringLiteral("profile"), profile);
+    return out;
+}
+
+QVariantMap RunnerManagerDaemon::ClearGameProfile(const QString &gameId)
+{
+    QVariantMap out;
+    out.insert(QStringLiteral("ok"), false);
+
+    const QString id = gameId.trimmed();
+    if (id.isEmpty()) {
+        out.insert(QStringLiteral("error"), QStringLiteral("missing gameId"));
+        return out;
+    }
+
+    if (!m_gameProfiles.contains(id)) {
+        out.insert(QStringLiteral("ok"), true);
+        out.insert(QStringLiteral("gameId"), id);
+        return out;
+    }
+
+    m_gameProfiles.remove(id);
+    if (!saveGameProfiles()) {
+        out.insert(QStringLiteral("error"), QStringLiteral("failed to save game profiles"));
+        return out;
+    }
+
+    Q_EMIT GameProfilesChanged();
+    out.insert(QStringLiteral("ok"), true);
+    out.insert(QStringLiteral("gameId"), id);
+    return out;
+}
+
 QVariantMap RunnerManagerDaemon::ResolveLaunch(const QVariantMap &spec) const
 {
     QVariantMap out;
     out.insert(QStringLiteral("ok"), false);
 
-    const QString runnerId = spec.value(QStringLiteral("runnerId")).toString();
-    QString runner = spec.value(QStringLiteral("runner")).toString();
-    QString runnerPath = spec.value(QStringLiteral("runnerPath")).toString();
+    const QString gameId = spec.value(QStringLiteral("gameId")).toString();
+
+    const bool useGameProfile = spec.contains(QStringLiteral("useGameProfile")) ? spec.value(QStringLiteral("useGameProfile")).toBool() : false;
+
+    QVariantMap profile;
+    if (useGameProfile && !gameId.isEmpty()) {
+        profile = gameProfileForGameId(gameId);
+    }
+
+    const QString specRunnerId = spec.value(QStringLiteral("runnerId")).toString();
+    const QString specRunner = spec.value(QStringLiteral("runner")).toString();
+    const QString specRunnerPath = spec.value(QStringLiteral("runnerPath")).toString();
+
+    QString runnerId = specRunnerId;
+    QString runner = specRunner;
+    QString runnerPath = specRunnerPath;
+
+    if (runnerId.isEmpty() && profile.contains(QStringLiteral("runnerId"))) {
+        runnerId = profile.value(QStringLiteral("runnerId")).toString();
+    }
+    if (runner.isEmpty() && profile.contains(QStringLiteral("runner"))) {
+        runner = profile.value(QStringLiteral("runner")).toString();
+    }
+    if (runnerPath.isEmpty() && profile.contains(QStringLiteral("runnerPath"))) {
+        runnerPath = profile.value(QStringLiteral("runnerPath")).toString();
+    }
 
     if (!runnerId.isEmpty()) {
         const RunnerInfo info = runnerById(runnerId);
@@ -1017,17 +1314,84 @@ QVariantMap RunnerManagerDaemon::ResolveLaunch(const QVariantMap &spec) const
         runnerPath = info.path;
     }
 
-    const QString gameId = spec.value(QStringLiteral("gameId")).toString();
     const QString program = spec.value(QStringLiteral("program")).toString();
-    const QStringList args = spec.value(QStringLiteral("args")).toStringList();
+    QStringList args = unwrapStringList(spec.value(QStringLiteral("args")));
     QString prefixPath = spec.value(QStringLiteral("prefixPath")).toString();
+    if (prefixPath.isEmpty() && profile.contains(QStringLiteral("prefixPath"))) {
+        prefixPath = profile.value(QStringLiteral("prefixPath")).toString();
+    }
 
     if (program.isEmpty()) {
         out.insert(QStringLiteral("error"), QStringLiteral("missing program"));
         return out;
     }
 
-    QVariantMap effectiveEnv = spec.value(QStringLiteral("envOverrides")).toMap();
+    {
+        const QStringList rawProfileExtraArgs = unwrapStringList(profile.value(QStringLiteral("extraArgs")));
+        for (const QString &a : rawProfileExtraArgs) {
+            const QString trimmed = a.trimmed();
+            if (!trimmed.isEmpty()) {
+                args.append(trimmed);
+            }
+        }
+
+        const QStringList rawSpecExtraArgs = unwrapStringList(spec.value(QStringLiteral("extraArgs")));
+        for (const QString &a : rawSpecExtraArgs) {
+            const QString trimmed = a.trimmed();
+            if (!trimmed.isEmpty()) {
+                args.append(trimmed);
+            }
+        }
+    }
+
+    QVariantMap effectiveEnv;
+    if (profile.contains(QStringLiteral("envOverrides"))) {
+        effectiveEnv = profile.value(QStringLiteral("envOverrides")).toMap();
+    }
+    const QVariantMap specEnv = unwrapVariantMap(spec.value(QStringLiteral("envOverrides")));
+    for (auto it = specEnv.constBegin(); it != specEnv.constEnd(); ++it) {
+        effectiveEnv.insert(it.key(), it.value());
+    }
+
+    QVariantMap dllOverrides;
+    if (profile.contains(QStringLiteral("dllOverrides"))) {
+        dllOverrides = profile.value(QStringLiteral("dllOverrides")).toMap();
+    }
+    const QVariantMap specDllOverrides = unwrapVariantMap(spec.value(QStringLiteral("dllOverrides")));
+    for (auto it = specDllOverrides.constBegin(); it != specDllOverrides.constEnd(); ++it) {
+        const QString key = it.key().trimmed();
+        if (key.isEmpty() || key.contains(QLatin1Char('=')) || key.contains(QLatin1Char(';'))) {
+            continue;
+        }
+        const QString value = it.value().toString().trimmed();
+        if (value.isEmpty()) {
+            continue;
+        }
+        dllOverrides.insert(key, value);
+    }
+
+    if (!dllOverrides.isEmpty() && !effectiveEnv.contains(QStringLiteral("WINEDLLOVERRIDES"))
+        && ((runner == QLatin1String("wine")) || (runner == QLatin1String("proton")))) {
+        QStringList keys;
+        keys.reserve(dllOverrides.size());
+        for (auto it = dllOverrides.constBegin(); it != dllOverrides.constEnd(); ++it) {
+            keys.push_back(it.key());
+        }
+        std::sort(keys.begin(), keys.end());
+
+        QStringList parts;
+        parts.reserve(keys.size());
+        for (const QString &k : keys) {
+            const QString v = dllOverrides.value(k).toString().trimmed();
+            if (v.isEmpty()) {
+                continue;
+            }
+            parts.push_back(k + QLatin1Char('=') + v);
+        }
+        if (!parts.isEmpty()) {
+            effectiveEnv.insert(QStringLiteral("WINEDLLOVERRIDES"), parts.join(QStringLiteral(";")));
+        }
+    }
 
     if ((runner == QLatin1String("wine")) || (runner == QLatin1String("proton"))) {
         if (prefixPath.isEmpty()) {

src/runner/runnermanagerdaemon.h

@@ -42,11 +42,18 @@ public Q_SLOTS:
     QVariantMap DeletePrefix(const QVariantMap &spec);
     QVariantMap ResolveLaunch(const QVariantMap &spec) const;
 
+    QVariantMap GetGameProfile(const QString &gameId) const;
+    QVariantMap SetGameProfile(const QVariantMap &spec);
+    QVariantMap ClearGameProfile(const QString &gameId);
+    QVariantList ListGameProfiles() const;
+
 Q_SIGNALS:
     void InstallStarted(const QString &installId, const QVariantMap &spec);
     void InstallProgress(const QString &installId, qint64 receivedBytes, qint64 totalBytes);
     void InstallFinished(const QString &installId, const QVariantMap &result);
 
+    void GameProfilesChanged();
+
 private:
     struct RunnerInfo {
         QString id;
@@ -65,6 +72,11 @@ private:
     void loadRegistry();
     bool saveRegistry() const;
 
+    QString gameProfilesPath() const;
+    void loadGameProfiles();
+    bool saveGameProfiles() const;
+    QVariantMap gameProfileForGameId(const QString &gameId) const;
+
     QList<RunnerInfo> discoverRunners() const;
     QString defaultProtonExecutable() const;
 
@@ -81,4 +93,6 @@ private:
 
     QHash<QString, QPointer<QNetworkReply>> m_installReplies;
     QHash<QString, QPointer<QProcess>> m_installProcesses;
+
+    QHash<QString, QVariantMap> m_gameProfiles;
 };

src/runnermanagerclient.cpp

@@ -13,6 +13,7 @@
 #include <QDBusPendingCall>
 #include <QDBusPendingCallWatcher>
 #include <QDBusReply>
+#include <QDBusVariant>
 #include <QDir>
 #include <QFileInfo>
 #include <QProcess>
@@ -26,6 +27,52 @@ static const QString kRunnerService = QStringLiteral("org.kde.ALaKarte.Runner1")
 static const QString kRunnerPath = QStringLiteral("/org/kde/ALaKarte/Runner1");
 static const QString kRunnerInterface = QStringLiteral("org.kde.ALaKarte.Runner1");
 
+namespace
+{
+static QVariant unwrapDbusVariant(QVariant v)
+{
+    if (v.canConvert<QDBusVariant>()) {
+        v = v.value<QDBusVariant>().variant();
+    }
+    return v;
+}
+
+static QVariantMap unwrapVariantMap(QVariant v)
+{
+    v = unwrapDbusVariant(v);
+    if (v.metaType() == QMetaType::fromType<QDBusArgument>()) {
+        const QDBusArgument arg = v.value<QDBusArgument>();
+        return qdbus_cast<QVariantMap>(arg);
+    }
+    if (v.canConvert<QVariantMap>()) {
+        return v.toMap();
+    }
+    return {};
+}
+
+static QVariantMap normalizeMap(QVariantMap m)
+{
+    for (auto it = m.begin(); it != m.end(); ++it) {
+        it.value() = unwrapDbusVariant(it.value());
+        if (it.key() == QLatin1String("envOverrides")) {
+            it.value() = unwrapVariantMap(it.value());
+        }
+    }
+    return m;
+}
+
+static QVariantMap normalizeResultWithProfile(QVariantMap result)
+{
+    result = normalizeMap(result);
+    if (result.contains(QStringLiteral("profile"))) {
+        QVariantMap profile = unwrapVariantMap(result.value(QStringLiteral("profile")));
+        profile = normalizeMap(profile);
+        result.insert(QStringLiteral("profile"), profile);
+    }
+    return result;
+}
+}
+
 static QString stableIdForUrl(const QString &type, const QString &url)
 {
     const QByteArray digest = QCryptographicHash::hash(url.toUtf8(), QCryptographicHash::Sha1).toHex();
@@ -80,6 +127,8 @@ RunnerManagerClient::RunnerManagerClient(QObject *parent)
                     SLOT(onInstallProgress(QString, qlonglong, qlonglong)));
 
         bus.connect(kRunnerService, kRunnerPath, kRunnerInterface, QStringLiteral("InstallFinished"), this, SLOT(onInstallFinished(QString, QVariantMap)));
+
+        bus.connect(kRunnerService, kRunnerPath, kRunnerInterface, QStringLiteral("GameProfilesChanged"), this, SLOT(onGameProfilesChanged()));
     }
 
     if (QCoreApplication::instance()) {
@@ -89,6 +138,7 @@ RunnerManagerClient::RunnerManagerClient(QObject *parent)
     }
 
     refreshRunners();
+    refreshGameProfiles();
 }
 
 RunnerManagerClient::~RunnerManagerClient()
@@ -213,6 +263,11 @@ QVariantList RunnerManagerClient::runners() const
     return m_runners;
 }
 
+QVariantList RunnerManagerClient::gameProfiles() const
+{
+    return m_gameProfiles;
+}
+
 static QString normalizeHex(QString s)
 {
     s = s.trimmed().toLower();
@@ -417,6 +472,11 @@ void RunnerManagerClient::onInstallFinished(const QString &installId, const QVar
     refreshRunners();
 }
 
+void RunnerManagerClient::onGameProfilesChanged()
+{
+    refreshGameProfiles();
+}
+
 void RunnerManagerClient::refreshRunners()
 {
     ensureRunnerDaemon();
@@ -472,6 +532,179 @@ void RunnerManagerClient::refreshRunners()
     });
 }
 
+void RunnerManagerClient::refreshGameProfiles()
+{
+    ensureRunnerDaemon();
+
+    QDBusInterface iface(kRunnerService, kRunnerPath, kRunnerInterface, QDBusConnection::sessionBus());
+    QDBusPendingCall call = iface.asyncCall(QStringLiteral("ListGameProfiles"));
+    auto *watcher = new QDBusPendingCallWatcher(call, this);
+    connect(watcher, &QDBusPendingCallWatcher::finished, this, [this](QDBusPendingCallWatcher *w) {
+        QDBusPendingReply<QVariantList> reply = *w;
+        w->deleteLater();
+        if (reply.isError()) {
+            if (!m_refreshProfilesRetryPending && (reply.error().type() == QDBusError::ServiceUnknown || reply.error().type() == QDBusError::NoReply)) {
+                m_refreshProfilesRetryPending = true;
+                ensureRunnerDaemon();
+                QTimer::singleShot(500, this, [this]() {
+                    m_refreshProfilesRetryPending = false;
+                    refreshGameProfiles();
+                });
+            }
+            return;
+        }
+
+        const QVariantList raw = reply.value();
+
+        QVariantList list;
+        list.reserve(raw.size());
+        for (const QVariant &v : raw) {
+            QVariantMap map;
+            if (v.metaType() == QMetaType::fromType<QVariantMap>()) {
+                map = v.toMap();
+            } else if (v.metaType() == QMetaType::fromType<QDBusArgument>()) {
+                const QDBusArgument arg = v.value<QDBusArgument>();
+                map = qdbus_cast<QVariantMap>(arg);
+            } else if (v.canConvert<QVariantMap>()) {
+                map = v.toMap();
+            }
+            list.push_back(normalizeMap(map));
+        }
+
+        if (m_gameProfiles == list) {
+            return;
+        }
+        m_gameProfiles = list;
+        Q_EMIT gameProfilesChanged();
+    });
+}
+
+void RunnerManagerClient::requestGameProfile(const QString &gameId)
+{
+    const QString id = gameId.trimmed();
+    if (id.isEmpty()) {
+        return;
+    }
+
+    ensureRunnerDaemon();
+
+    auto attempts = QSharedPointer<int>::create(0);
+    auto callPtr = QSharedPointer<std::function<void()>>::create();
+    *callPtr = [this, id, attempts, callPtr]() {
+        QDBusInterface iface(kRunnerService, kRunnerPath, kRunnerInterface, QDBusConnection::sessionBus());
+        QDBusPendingCall call = iface.asyncCall(QStringLiteral("GetGameProfile"), id);
+        auto *watcher = new QDBusPendingCallWatcher(call, this);
+        connect(watcher, &QDBusPendingCallWatcher::finished, this, [this, id, attempts, callPtr](QDBusPendingCallWatcher *w) {
+            QDBusPendingReply<QVariantMap> reply = *w;
+            w->deleteLater();
+            if (reply.isError()) {
+                const QDBusError::ErrorType t = reply.error().type();
+                if ((*attempts) < 1 && (t == QDBusError::ServiceUnknown || t == QDBusError::NoReply)) {
+                    (*attempts)++;
+                    ensureRunnerDaemon();
+                    QTimer::singleShot(500, this, [callPtr]() {
+                        (*callPtr)();
+                    });
+                    return;
+                }
+                QVariantMap err;
+                err.insert(QStringLiteral("ok"), false);
+                err.insert(QStringLiteral("error"), reply.error().message());
+                Q_EMIT gameProfileFetched(id, err);
+                return;
+            }
+
+            QVariantMap result = normalizeResultWithProfile(reply.value());
+            Q_EMIT gameProfileFetched(id, result);
+        });
+    };
+    (*callPtr)();
+}
+
+void RunnerManagerClient::setGameProfile(const QVariantMap &spec)
+{
+    const QString id = spec.value(QStringLiteral("gameId")).toString().trimmed();
+    if (id.isEmpty()) {
+        return;
+    }
+
+    ensureRunnerDaemon();
+
+    auto attempts = QSharedPointer<int>::create(0);
+    auto callPtr = QSharedPointer<std::function<void()>>::create();
+    *callPtr = [this, spec, id, attempts, callPtr]() {
+        QDBusInterface iface(kRunnerService, kRunnerPath, kRunnerInterface, QDBusConnection::sessionBus());
+        QDBusPendingCall call = iface.asyncCall(QStringLiteral("SetGameProfile"), spec);
+        auto *watcher = new QDBusPendingCallWatcher(call, this);
+        connect(watcher, &QDBusPendingCallWatcher::finished, this, [this, id, attempts, callPtr](QDBusPendingCallWatcher *w) {
+            QDBusPendingReply<QVariantMap> reply = *w;
+            w->deleteLater();
+            if (reply.isError()) {
+                const QDBusError::ErrorType t = reply.error().type();
+                if ((*attempts) < 1 && (t == QDBusError::ServiceUnknown || t == QDBusError::NoReply)) {
+                    (*attempts)++;
+                    ensureRunnerDaemon();
+                    QTimer::singleShot(500, this, [callPtr]() {
+                        (*callPtr)();
+                    });
+                    return;
+                }
+                QVariantMap err;
+                err.insert(QStringLiteral("ok"), false);
+                err.insert(QStringLiteral("error"), reply.error().message());
+                Q_EMIT gameProfileSaved(id, err);
+                return;
+            }
+
+            QVariantMap result = normalizeResultWithProfile(reply.value());
+            Q_EMIT gameProfileSaved(id, result);
+        });
+    };
+    (*callPtr)();
+}
+
+void RunnerManagerClient::clearGameProfile(const QString &gameId)
+{
+    const QString id = gameId.trimmed();
+    if (id.isEmpty()) {
+        return;
+    }
+
+    ensureRunnerDaemon();
+
+    auto attempts = QSharedPointer<int>::create(0);
+    auto callPtr = QSharedPointer<std::function<void()>>::create();
+    *callPtr = [this, id, attempts, callPtr]() {
+        QDBusInterface iface(kRunnerService, kRunnerPath, kRunnerInterface, QDBusConnection::sessionBus());
+        QDBusPendingCall call = iface.asyncCall(QStringLiteral("ClearGameProfile"), id);
+        auto *watcher = new QDBusPendingCallWatcher(call, this);
+        connect(watcher, &QDBusPendingCallWatcher::finished, this, [this, id, attempts, callPtr](QDBusPendingCallWatcher *w) {
+            QDBusPendingReply<QVariantMap> reply = *w;
+            w->deleteLater();
+            if (reply.isError()) {
+                const QDBusError::ErrorType t = reply.error().type();
+                if ((*attempts) < 1 && (t == QDBusError::ServiceUnknown || t == QDBusError::NoReply)) {
+                    (*attempts)++;
+                    ensureRunnerDaemon();
+                    QTimer::singleShot(500, this, [callPtr]() {
+                        (*callPtr)();
+                    });
+                    return;
+                }
+                QVariantMap err;
+                err.insert(QStringLiteral("ok"), false);
+                err.insert(QStringLiteral("error"), reply.error().message());
+                Q_EMIT gameProfileCleared(id, err);
+                return;
+            }
+
+            QVariantMap result = normalizeMap(reply.value());
+            Q_EMIT gameProfileCleared(id, result);
+        });
+    };
+    (*callPtr)();
+}
+
 void RunnerManagerClient::uninstallRunner(const QString &runnerId)
 {
     const QString id = runnerId.trimmed();

src/runnermanagerclient.h

@@ -17,6 +17,7 @@ class RunnerManagerClient : public QObject
     Q_PROPERTY(QString status READ status NOTIFY statusChanged)
     Q_PROPERTY(QString lastError READ lastError NOTIFY lastErrorChanged)
     Q_PROPERTY(QVariantList runners READ runners NOTIFY runnersChanged)
+    Q_PROPERTY(QVariantList gameProfiles READ gameProfiles NOTIFY gameProfilesChanged)
 
 public:
     explicit RunnerManagerClient(QObject *parent = nullptr);
@@ -29,6 +30,7 @@ public:
     QString status() const;
     QString lastError() const;
     QVariantList runners() const;
+    QVariantList gameProfiles() const;
 
     Q_INVOKABLE void installRunnerFromUrl(const QString &url,
                                           const QString &sha256 = QString(),
@@ -41,6 +43,11 @@ public:
     Q_INVOKABLE void refreshRunners();
     Q_INVOKABLE void uninstallRunner(const QString &runnerId);
 
+    Q_INVOKABLE void refreshGameProfiles();
+    Q_INVOKABLE void requestGameProfile(const QString &gameId);
+    Q_INVOKABLE void setGameProfile(const QVariantMap &spec);
+    Q_INVOKABLE void clearGameProfile(const QString &gameId);
+
     Q_INVOKABLE void ensurePrefix(const QString &gameId, const QString &runner, const QString &prefixPath = QString());
 
     Q_INVOKABLE void deletePrefix(const QString &gameId, const QString &prefixPath = QString());
@@ -52,14 +59,21 @@ Q_SIGNALS:
     void statusChanged();
     void lastErrorChanged();
     void runnersChanged();
+    void gameProfilesChanged();
     void prefixEnsured(const QString &gameId, const QString &prefixPath);
     void prefixDeleted(const QString &gameId, const QString &prefixPath);
 
+    void gameProfileFetched(const QString &gameId, const QVariantMap &result);
+    void gameProfileSaved(const QString &gameId, const QVariantMap &result);
+    void gameProfileCleared(const QString &gameId, const QVariantMap &result);
+
 private Q_SLOTS:
     void onInstallStarted(const QString &installId, const QVariantMap &spec);
     void onInstallProgress(const QString &installId, qlonglong received, qlonglong total);
     void onInstallFinished(const QString &installId, const QVariantMap &result);
 
+    void onGameProfilesChanged();
+
 private:
     void ensureRunnerDaemon();
     void shutdownSpawnedRunnerDaemon();
@@ -77,8 +91,10 @@ private:
     QString m_lastError;
 
     QVariantList m_runners;
+    QVariantList m_gameProfiles;
 
     bool m_refreshRetryPending = false;
+    bool m_refreshProfilesRetryPending = false;
 
     class QProcess *m_runnerdProcess = nullptr;
     bool m_runnerdSpawnAttempted = false;

tests/CMakeLists.txt

@@ -0,0 +1,45 @@
+find_package(Qt6 ${QT_MIN_VERSION} QUIET COMPONENTS Test)
+
+if (NOT Qt6Test_FOUND OR NOT TARGET Qt6::Test)
+    return()
+endif()
+
+add_executable(alakarte_dbus_smoketest
+    dbus_smoketest.cpp
+)
+
+target_link_libraries(alakarte_dbus_smoketest PRIVATE
+    Qt6::Core
+    Qt6::DBus
+    Qt6::Test
+)
+
+add_test(NAME alakarte_dbus_smoketest
+    COMMAND alakarte_dbus_smoketest
+        --gamecenter $<TARGET_FILE:alakarte_gamecenter>
+        --runnerd $<TARGET_FILE:alakarte_runnerd>
+        --inputd $<TARGET_FILE:alakarte_inputd>
+)
+
+set_tests_properties(alakarte_dbus_smoketest PROPERTIES
+    TIMEOUT 30
+)
+
+add_executable(alakarte_stop_launching_regression_test
+    stop_launching_regression_test.cpp
+)
+
+target_link_libraries(alakarte_stop_launching_regression_test PRIVATE
+    Qt6::Core
+    Qt6::DBus
+    Qt6::Test
+)
+
+add_test(NAME alakarte_stop_launching_regression_test
+    COMMAND alakarte_stop_launching_regression_test
+        --gamecenter $<TARGET_FILE:alakarte_gamecenter>
+)
+
+set_tests_properties(alakarte_stop_launching_regression_test PROPERTIES
+    TIMEOUT 60
+)

tests/dbus_smoketest.cpp

@@ -0,0 +1,438 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2026 A-La-Karte Contributors
+
+#include <QCoreApplication>
+#include <QDBusArgument>
+#include <QDBusConnection>
+#include <QDBusConnectionInterface>
+#include <QDBusInterface>
+#include <QDBusReply>
+#include <QDBusVariant>
+#include <QDir>
+#include <QElapsedTimer>
+#include <QProcess>
+#include <QProcessEnvironment>
+#include <QStandardPaths>
+#include <QStringList>
+#include <QUuid>
+#include <QtTest>
+
+namespace
+{
+static QString takeArgValue(const QStringList &args, const QString &key)
+{
+    const int idx = args.indexOf(key);
+    if (idx < 0) {
+        return {};
+    }
+    if (idx + 1 >= args.size()) {
+        return {};
+    }
+    return args.at(idx + 1);
+}
+
+static bool waitForService(QDBusConnection &bus, const QString &service, int timeoutMs)
+{
+    if (!bus.isConnected() || !bus.interface()) {
+        return false;
+    }
+
+    QElapsedTimer t;
+    t.start();
+    while (t.elapsed() < timeoutMs) {
+        if (bus.interface()->isServiceRegistered(service)) {
+            return true;
+        }
+        QTest::qWait(50);
+    }
+    return false;
+}
+
+static QVariant unwrapDbusVariant(QVariant v)
+{
+    if (v.metaType() == QMetaType::fromType<QDBusVariant>()) {
+        v = v.value<QDBusVariant>().variant();
+    }
+    return v;
+}
+
+static QVariantMap unwrapVariantMap(QVariant v)
+{
+    v = unwrapDbusVariant(v);
+    if (v.metaType() == QMetaType::fromType<QDBusArgument>()) {
+        const QDBusArgument arg = v.value<QDBusArgument>();
+        return qdbus_cast<QVariantMap>(arg);
+    }
+    if (v.canConvert<QVariantMap>()) {
+        return v.toMap();
+    }
+    return {};
+}
+}
+
+class DbusSmokeTest : public QObject
+{
+    Q_OBJECT
+
+private Q_SLOTS:
+    void initTestCase();
+    void cleanupTestCase();
+
+    void pingGameCenter();
+    void pingRunner();
+    void pingInput();
+    void runnerResolveLaunchNative();
+    void runnerGameProfiles();
+
+private:
+    QString m_gamecenterPath;
+    QString m_runnerdPath;
+    QString m_inputdPath;
+
+    QString m_dbusAddress;
+    QProcess m_dbusDaemon;
+    QProcess m_gamecenter;
+    QProcess m_runnerd;
+    QProcess m_inputd;
+
+    QString m_testXdgBase;
+
+    QDBusConnection m_bus = QDBusConnection::connectToBus(QString(), QStringLiteral("alakarte_test"));
+
+    bool startPrivateBus();
+    bool haveDbusDaemon() const;
+    void startDaemon(QProcess &p, const QString &program);
+    void stopProcess(QProcess &p);
+};
+
+bool DbusSmokeTest::haveDbusDaemon() const
+{
+    return !QStandardPaths::findExecutable(QStringLiteral("dbus-daemon")).isEmpty();
+}
+
+bool DbusSmokeTest::startPrivateBus()
+{
+    const QString dbusDaemon = QStandardPaths::findExecutable(QStringLiteral("dbus-daemon"));
+    if (dbusDaemon.isEmpty()) {
+        return false;
+    }
+
+    m_dbusDaemon.setProgram(dbusDaemon);
+    m_dbusDaemon.setArguments({QStringLiteral("--session"), QStringLiteral("--nofork"), QStringLiteral("--print-address=1")});
+    m_dbusDaemon.setProcessChannelMode(QProcess::MergedChannels);
+    m_dbusDaemon.start();
+    if (!m_dbusDaemon.waitForStarted(5000)) {
+        return false;
+    }
+
+    if (!m_dbusDaemon.waitForReadyRead(5000)) {
+        return false;
+    }
+
+    m_dbusAddress = QString::fromUtf8(m_dbusDaemon.readLine()).trimmed();
+    if (m_dbusAddress.isEmpty()) {
+        return false;
+    }
+
+    QDBusConnection::disconnectFromBus(QStringLiteral("alakarte_test"));
+    m_bus = QDBusConnection::connectToBus(m_dbusAddress, QStringLiteral("alakarte_test"));
+    return m_bus.isConnected();
+}
+
+void DbusSmokeTest::startDaemon(QProcess &p, const QString &program)
+{
+    QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
+    env.insert(QStringLiteral("DBUS_SESSION_BUS_ADDRESS"), m_dbusAddress);
+    if (!m_testXdgBase.isEmpty()) {
+        env.insert(QStringLiteral("XDG_DATA_HOME"), m_testXdgBase + QStringLiteral("/data"));
+        env.insert(QStringLiteral("XDG_CONFIG_HOME"), m_testXdgBase + QStringLiteral("/config"));
+        env.insert(QStringLiteral("XDG_CACHE_HOME"), m_testXdgBase + QStringLiteral("/cache"));
+    }
+    p.setProcessEnvironment(env);
+    p.setProgram(program);
+    p.setArguments({});
+    p.setProcessChannelMode(QProcess::MergedChannels);
+    p.start();
+}
+
+void DbusSmokeTest::stopProcess(QProcess &p)
+{
+    if (p.state() == QProcess::NotRunning) {
+        return;
+    }
+
+    p.terminate();
+    if (!p.waitForFinished(3000)) {
+        p.kill();
+        p.waitForFinished(3000);
+    }
+}
+
+void DbusSmokeTest::initTestCase()
+{
+    m_gamecenterPath = qApp ? qApp->property("alakarte_test_gamecenter").toString() : QString();
+    m_runnerdPath = qApp ? qApp->property("alakarte_test_runnerd").toString() : QString();
+    m_inputdPath = qApp ? qApp->property("alakarte_test_inputd").toString() : QString();
+
+    if (m_gamecenterPath.isEmpty() || m_runnerdPath.isEmpty() || m_inputdPath.isEmpty()) {
+        const QStringList args = QCoreApplication::arguments();
+        if (m_gamecenterPath.isEmpty()) {
+            m_gamecenterPath = takeArgValue(args, QStringLiteral("--gamecenter"));
+        }
+        if (m_runnerdPath.isEmpty()) {
+            m_runnerdPath = takeArgValue(args, QStringLiteral("--runnerd"));
+        }
+        if (m_inputdPath.isEmpty()) {
+            m_inputdPath = takeArgValue(args, QStringLiteral("--inputd"));
+        }
+    }
+
+    QVERIFY2(!m_gamecenterPath.isEmpty(), "--gamecenter is required");
+    QVERIFY2(!m_runnerdPath.isEmpty(), "--runnerd is required");
+    QVERIFY2(!m_inputdPath.isEmpty(), "--inputd is required");
+
+    if (!haveDbusDaemon()) {
+        QSKIP("dbus-daemon not found");
+    }
+
+    if (!startPrivateBus()) {
+        QSKIP("failed to start private dbus session");
+    }
+
+    m_testXdgBase = QDir::tempPath() + QStringLiteral("/alakarte-test-xdg-") + QUuid::createUuid().toString(QUuid::WithoutBraces);
+    QVERIFY(QDir().mkpath(m_testXdgBase + QStringLiteral("/data")));
+    QVERIFY(QDir().mkpath(m_testXdgBase + QStringLiteral("/config")));
+    QVERIFY(QDir().mkpath(m_testXdgBase + QStringLiteral("/cache")));
+
+    startDaemon(m_runnerd, m_runnerdPath);
+    QVERIFY(m_runnerd.waitForStarted(5000));
+
+    startDaemon(m_inputd, m_inputdPath);
+    QVERIFY(m_inputd.waitForStarted(5000));
+
+    startDaemon(m_gamecenter, m_gamecenterPath);
+    QVERIFY(m_gamecenter.waitForStarted(5000));
+
+    QVERIFY2(waitForService(m_bus, QStringLiteral("org.kde.ALaKarte.Runner1"), 5000), "Runner1 service did not appear on the bus");
+    QVERIFY2(waitForService(m_bus, QStringLiteral("org.kde.ALaKarte.Input1"), 5000), "Input1 service did not appear on the bus");
+    QVERIFY2(waitForService(m_bus, QStringLiteral("org.kde.GameCenter1"), 5000), "GameCenter1 service did not appear on the bus");
+}
+
+void DbusSmokeTest::cleanupTestCase()
+{
+    stopProcess(m_gamecenter);
+    stopProcess(m_inputd);
+    stopProcess(m_runnerd);
+    stopProcess(m_dbusDaemon);
+    QDBusConnection::disconnectFromBus(QStringLiteral("alakarte_test"));
+
+    if (!m_testXdgBase.isEmpty()) {
+        QDir(m_testXdgBase).removeRecursively();
+        m_testXdgBase.clear();
+    }
+}
+
+void DbusSmokeTest::pingGameCenter()
+{
+    QDBusInterface iface(QStringLiteral("org.kde.GameCenter1"), QStringLiteral("/org/kde/GameCenter1"), QStringLiteral("org.kde.GameCenter1"), m_bus);
+    QVERIFY(iface.isValid());
+    iface.setTimeout(2000);
+
+    const QDBusReply<QString> reply = iface.call(QStringLiteral("Ping"));
+    QVERIFY(reply.isValid());
+    QCOMPARE(reply.value(), QStringLiteral("ok"));
+}
+
+void DbusSmokeTest::pingRunner()
+{
+    QDBusInterface iface(QStringLiteral("org.kde.ALaKarte.Runner1"),
+                         QStringLiteral("/org/kde/ALaKarte/Runner1"),
+                         QStringLiteral("org.kde.ALaKarte.Runner1"),
+                         m_bus);
+    QVERIFY(iface.isValid());
+    iface.setTimeout(2000);
+
+    const QDBusReply<QString> reply = iface.call(QStringLiteral("Ping"));
+    QVERIFY(reply.isValid());
+    QCOMPARE(reply.value(), QStringLiteral("ok"));
+}
+
+void DbusSmokeTest::pingInput()
+{
+    QDBusInterface iface(QStringLiteral("org.kde.ALaKarte.Input1"),
+                         QStringLiteral("/org/kde/ALaKarte/Input1"),
+                         QStringLiteral("org.kde.ALaKarte.Input1"),
+                         m_bus);
+    QVERIFY(iface.isValid());
+    iface.setTimeout(2000);
+
+    const QDBusReply<QString> reply = iface.call(QStringLiteral("Ping"));
+    QVERIFY(reply.isValid());
+    QCOMPARE(reply.value(), QStringLiteral("ok"));
+}
+
+void DbusSmokeTest::runnerResolveLaunchNative()
+{
+    QDBusInterface iface(QStringLiteral("org.kde.ALaKarte.Runner1"),
+                         QStringLiteral("/org/kde/ALaKarte/Runner1"),
+                         QStringLiteral("org.kde.ALaKarte.Runner1"),
+                         m_bus);
+    QVERIFY(iface.isValid());
+    iface.setTimeout(2000);
+
+    QVariantMap spec;
+    spec.insert(QStringLiteral("program"), QStringLiteral("/bin/true"));
+    spec.insert(QStringLiteral("args"), QStringList{});
+
+    const QDBusReply<QVariantMap> reply = iface.call(QStringLiteral("ResolveLaunch"), spec);
+    QVERIFY(reply.isValid());
+
+    const QVariantMap out = reply.value();
+    QVERIFY(out.value(QStringLiteral("ok")).toBool());
+    QCOMPARE(out.value(QStringLiteral("finalProgram")).toString(), QStringLiteral("/bin/true"));
+    QCOMPARE(out.value(QStringLiteral("finalArgs")).toStringList(), QStringList{});
+}
+
+void DbusSmokeTest::runnerGameProfiles()
+{
+    QDBusInterface iface(QStringLiteral("org.kde.ALaKarte.Runner1"),
+                         QStringLiteral("/org/kde/ALaKarte/Runner1"),
+                         QStringLiteral("org.kde.ALaKarte.Runner1"),
+                         m_bus);
+    QVERIFY(iface.isValid());
+    iface.setTimeout(2000);
+
+    const QString gameId = QStringLiteral("alakarte-test-game");
+
+    {
+        const QDBusReply<QVariantMap> reply = iface.call(QStringLiteral("ClearGameProfile"), gameId);
+        QVERIFY(reply.isValid());
+        QVERIFY(reply.value().value(QStringLiteral("ok")).toBool());
+    }
+
+    {
+        QVariantMap spec;
+        spec.insert(QStringLiteral("gameId"), gameId);
+        spec.insert(QStringLiteral("runner"), QStringLiteral("wine"));
+        spec.insert(QStringLiteral("runnerPath"), QStringLiteral("/bin/true"));
+        spec.insert(QStringLiteral("envOverrides"), QVariantMap{{QStringLiteral("ALAKARTE_TEST_VAR"), QStringLiteral("1")}});
+        spec.insert(QStringLiteral("extraArgs"), QStringList{QStringLiteral("--profile-arg")});
+        spec.insert(QStringLiteral("dllOverrides"),
+                    QVariantMap{{QStringLiteral("d3d11"), QStringLiteral("native,builtin")}, {QStringLiteral("dxgi"), QStringLiteral("native,builtin")}});
+
+        const QDBusReply<QVariantMap> reply = iface.call(QStringLiteral("SetGameProfile"), spec);
+        QVERIFY(reply.isValid());
+        const QVariantMap out = reply.value();
+        QVERIFY(out.value(QStringLiteral("ok")).toBool());
+
+        const QVariantMap profile = unwrapVariantMap(out.value(QStringLiteral("profile")));
+        QCOMPARE(profile.value(QStringLiteral("gameId")).toString(), gameId);
+        const QVariantMap env = unwrapVariantMap(profile.value(QStringLiteral("envOverrides")));
+        QCOMPARE(env.value(QStringLiteral("ALAKARTE_TEST_VAR")).toString(), QStringLiteral("1"));
+
+        QCOMPARE(profile.value(QStringLiteral("extraArgs")).toStringList(), QStringList{QStringLiteral("--profile-arg")});
+
+        const QVariantMap dll = unwrapVariantMap(profile.value(QStringLiteral("dllOverrides")));
+        QCOMPARE(dll.value(QStringLiteral("d3d11")).toString(), QStringLiteral("native,builtin"));
+        QCOMPARE(dll.value(QStringLiteral("dxgi")).toString(), QStringLiteral("native,builtin"));
+    }
+
+    {
+        const QDBusReply<QVariantMap> reply = iface.call(QStringLiteral("GetGameProfile"), gameId);
+        QVERIFY(reply.isValid());
+        const QVariantMap out = reply.value();
+        QVERIFY(out.value(QStringLiteral("ok")).toBool());
+        const QVariantMap profile = unwrapVariantMap(out.value(QStringLiteral("profile")));
+        QCOMPARE(profile.value(QStringLiteral("gameId")).toString(), gameId);
+
+        QCOMPARE(profile.value(QStringLiteral("extraArgs")).toStringList(), QStringList{QStringLiteral("--profile-arg")});
+
+        const QVariantMap dll = unwrapVariantMap(profile.value(QStringLiteral("dllOverrides")));
+        QCOMPARE(dll.value(QStringLiteral("d3d11")).toString(), QStringLiteral("native,builtin"));
+        QCOMPARE(dll.value(QStringLiteral("dxgi")).toString(), QStringLiteral("native,builtin"));
+    }
+
+    {
+        QVariantMap spec;
+        spec.insert(QStringLiteral("gameId"), gameId);
+        spec.insert(QStringLiteral("useGameProfile"), true);
+        spec.insert(QStringLiteral("program"), QStringLiteral("/bin/true"));
+        spec.insert(QStringLiteral("args"), QStringList{QStringLiteral("--base-arg")});
+        spec.insert(QStringLiteral("extraArgs"), QStringList{QStringLiteral("--spec-arg")});
+
+        const QDBusReply<QVariantMap> reply = iface.call(QStringLiteral("ResolveLaunch"), spec);
+        QVERIFY(reply.isValid());
+        const QVariantMap out = reply.value();
+        QVERIFY(out.value(QStringLiteral("ok")).toBool());
+        QCOMPARE(out.value(QStringLiteral("finalProgram")).toString(), QStringLiteral("/bin/true"));
+        const QStringList expectedFinalArgs = QStringList({
+            QStringLiteral("/bin/true"),
+            QStringLiteral("--base-arg"),
+            QStringLiteral("--profile-arg"),
+            QStringLiteral("--spec-arg"),
+        });
+        QCOMPARE(out.value(QStringLiteral("finalArgs")).toStringList(), expectedFinalArgs);
+
+        const QVariantMap env = unwrapVariantMap(out.value(QStringLiteral("effectiveEnv")));
+        QCOMPARE(env.value(QStringLiteral("ALAKARTE_TEST_VAR")).toString(), QStringLiteral("1"));
+        QCOMPARE(env.value(QStringLiteral("WINEDLLOVERRIDES")).toString(), QStringLiteral("d3d11=native,builtin;dxgi=native,builtin"));
+    }
+
+    {
+        const QDBusReply<QVariantList> reply = iface.call(QStringLiteral("ListGameProfiles"));
+        QVERIFY(reply.isValid());
+        const QVariantList list = reply.value();
+        bool found = false;
+        for (const QVariant &v : list) {
+            const QVariantMap m = unwrapVariantMap(v);
+            if (m.value(QStringLiteral("gameId")).toString() == gameId) {
+                found = true;
+                break;
+            }
+        }
+        QVERIFY(found);
+    }
+
+    {
+        const QDBusReply<QVariantMap> reply = iface.call(QStringLiteral("ClearGameProfile"), gameId);
+        QVERIFY(reply.isValid());
+        QVERIFY(reply.value().value(QStringLiteral("ok")).toBool());
+    }
+}
+
+int main(int argc, char **argv)
+{
+    QCoreApplication app(argc, argv);
+
+    const QStringList args = app.arguments();
+    const QString gamecenterPath = takeArgValue(args, QStringLiteral("--gamecenter"));
+    const QString runnerdPath = takeArgValue(args, QStringLiteral("--runnerd"));
+    const QString inputdPath = takeArgValue(args, QStringLiteral("--inputd"));
+
+    app.setProperty("alakarte_test_gamecenter", gamecenterPath);
+    app.setProperty("alakarte_test_runnerd", runnerdPath);
+    app.setProperty("alakarte_test_inputd", inputdPath);
+
+    QStringList filtered;
+    filtered.reserve(args.size());
+    if (!args.isEmpty()) {
+        filtered.push_back(args.first());
+    }
+    for (int i = 1; i < args.size(); ++i) {
+        const QString a = args.at(i);
+        if (a == QLatin1String("--gamecenter") || a == QLatin1String("--runnerd")) {
+            ++i;
+            continue;
+        }
+        if (a == QLatin1String("--inputd")) {
+            ++i;
+            continue;
+        }
+        filtered.push_back(a);
+    }
+
+    DbusSmokeTest tc;
+    return QTest::qExec(&tc, filtered);
+}
+
+#include "dbus_smoketest.moc"

tests/stop_launching_regression_test.cpp

@@ -0,0 +1,630 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2026 A-La-Karte Contributors
+
+#include <QCoreApplication>
+#include <QDBusConnection>
+#include <QDBusConnectionInterface>
+#include <QDBusInterface>
+#include <QDBusReply>
+#include <QDBusVariant>
+#include <QDir>
+#include <QElapsedTimer>
+#include <QFile>
+#include <QFileInfo>
+#include <QProcess>
+#include <QProcessEnvironment>
+#include <QStandardPaths>
+#include <QStringList>
+#include <QTemporaryDir>
+#include <QUuid>
+#include <QtTest>
+
+#include <signal.h>
+#include <sys/types.h>
+
+namespace
+{
+static QString takeArgValue(const QStringList &args, const QString &key)
+{
+    const int idx = args.indexOf(key);
+    if (idx < 0) {
+        return {};
+    }
+    if (idx + 1 >= args.size()) {
+        return {};
+    }
+    return args.at(idx + 1);
+}
+
+static bool waitForService(QDBusConnection &bus, const QString &service, int timeoutMs)
+{
+    if (!bus.isConnected() || !bus.interface()) {
+        return false;
+    }
+
+    QElapsedTimer t;
+    t.start();
+    while (t.elapsed() < timeoutMs) {
+        if (bus.interface()->isServiceRegistered(service)) {
+            return true;
+        }
+        QTest::qWait(50);
+    }
+    return false;
+}
+
+static QByteArray readProcFile(const QString &path, qint64 maxSize = 65536)
+{
+    QFile f(path);
+    if (!f.open(QIODevice::ReadOnly)) {
+        return {};
+    }
+    return f.read(maxSize);
+}
+
+static bool containsNullSeparatedEntry(const QByteArray &blob, const QByteArray &needle)
+{
+    if (blob.isEmpty() || needle.isEmpty()) {
+        return false;
+    }
+
+    int pos = -1;
+    while (true) {
+        pos = blob.indexOf(needle, pos + 1);
+        if (pos < 0) {
+            return false;
+        }
+
+        const bool startOk = (pos == 0) || (blob.at(pos - 1) == '\0');
+        const int endPos = pos + needle.size();
+        const bool endOk = (endPos == blob.size()) || (blob.at(endPos) == '\0');
+        if (startOk && endOk) {
+            return true;
+        }
+    }
+}
+
+static QList<uint> pidsWithEnvironEntry(const QByteArray &needle)
+{
+    QList<uint> out;
+    const QDir proc(QStringLiteral("/proc"));
+    const QStringList entries = proc.entryList(QDir::Dirs | QDir::NoDotAndDotDot);
+    for (const QString &entry : entries) {
+        bool ok = false;
+        const uint pid = entry.toUInt(&ok);
+        if (!ok || pid <= 1) {
+            continue;
+        }
+
+        const QByteArray env = readProcFile(QStringLiteral("/proc/%1/environ").arg(pid));
+        if (containsNullSeparatedEntry(env, needle)) {
+            out.push_back(pid);
+        }
+    }
+    return out;
+}
+
+static bool waitForAnyEnvironEntry(const QByteArray &needle, int timeoutMs)
+{
+    QElapsedTimer t;
+    t.start();
+    while (t.elapsed() < timeoutMs) {
+        if (!pidsWithEnvironEntry(needle).isEmpty()) {
+            return true;
+        }
+        QTest::qWait(50);
+    }
+    return !pidsWithEnvironEntry(needle).isEmpty();
+}
+
+static bool waitForNoEnvironEntry(const QByteArray &needle, int timeoutMs)
+{
+    QElapsedTimer t;
+    t.start();
+    while (t.elapsed() < timeoutMs) {
+        if (pidsWithEnvironEntry(needle).isEmpty()) {
+            return true;
+        }
+        QTest::qWait(150);
+    }
+    return pidsWithEnvironEntry(needle).isEmpty();
+}
+
+static void killPids(const QList<uint> &pids)
+{
+    for (uint pid : pids) {
+        if (pid > 1) {
+            ::kill(static_cast<pid_t>(pid), SIGKILL);
+        }
+    }
+}
+
+static void stopProcess(QProcess &p)
+{
+    if (p.state() == QProcess::NotRunning) {
+        return;
+    }
+
+    p.terminate();
+    if (!p.waitForFinished(3000)) {
+        p.kill();
+        p.waitForFinished(3000);
+    }
+}
+
+static bool waitForUnitNotActive(const QString &unitName, int timeoutMs)
+{
+    QDBusConnection bus = QDBusConnection::sessionBus();
+    if (!bus.isConnected()) {
+        return false;
+    }
+
+    QDBusInterface manager(QStringLiteral("org.freedesktop.systemd1"),
+                           QStringLiteral("/org/freedesktop/systemd1"),
+                           QStringLiteral("org.freedesktop.systemd1.Manager"),
+                           bus);
+    if (!manager.isValid()) {
+        return false;
+    }
+
+    QElapsedTimer t;
+    t.start();
+    while (t.elapsed() < timeoutMs) {
+        const QDBusReply<QDBusObjectPath> unitReply = manager.call(QStringLiteral("GetUnit"), unitName);
+        if (!unitReply.isValid()) {
+            if (unitReply.error().name() == QLatin1String("org.freedesktop.systemd1.NoSuchUnit")) {
+                return true;
+            }
+            QTest::qWait(100);
+            continue;
+        }
+
+        QDBusInterface props(QStringLiteral("org.freedesktop.systemd1"), unitReply.value().path(), QStringLiteral("org.freedesktop.DBus.Properties"), bus);
+        if (!props.isValid()) {
+            return true;
+        }
+
+        const QDBusReply<QVariant> stateReply =
+            props.call(QStringLiteral("Get"), QStringLiteral("org.freedesktop.systemd1.Unit"), QStringLiteral("ActiveState"));
+        if (!stateReply.isValid()) {
+            return true;
+        }
+
+        QVariant v = stateReply.value();
+        if (v.canConvert<QDBusVariant>()) {
+            v = v.value<QDBusVariant>().variant();
+        }
+        const QString state = v.toString();
+        if (state != QLatin1String("active") && state != QLatin1String("activating") && state != QLatin1String("deactivating")) {
+            return true;
+        }
+
+        QTest::qWait(100);
+    }
+
+    const QDBusReply<QDBusObjectPath> unitReply = manager.call(QStringLiteral("GetUnit"), unitName);
+    if (!unitReply.isValid() && unitReply.error().name() == QLatin1String("org.freedesktop.systemd1.NoSuchUnit")) {
+        return true;
+    }
+    return false;
+}
+}
+
+class StopLaunchingRegressionTest : public QObject
+{
+    Q_OBJECT
+
+private Q_SLOTS:
+    void initTestCase();
+    void cleanupTestCase();
+
+    void stopWhileLaunchingSteam();
+    void stopByGameIdWhileLaunchingSteam();
+    void stopWhileLaunchingLutris();
+    void stopByGameIdWhileLaunchingLutris();
+
+    void stopDirectLaunch();
+    void stopByGameIdDirectLaunch();
+
+private:
+    QString m_gamecenterPath;
+    QProcess m_gamecenter;
+    QString m_testXdgBase;
+    QTemporaryDir m_stubBin;
+    QString m_markerValue;
+};
+
+void StopLaunchingRegressionTest::initTestCase()
+{
+    m_gamecenterPath = qApp->property("alakarte_test_gamecenter").toString();
+    if (m_gamecenterPath.isEmpty()) {
+        const QStringList args = QCoreApplication::arguments();
+        m_gamecenterPath = takeArgValue(args, QStringLiteral("--gamecenter"));
+    }
+    QVERIFY2(!m_gamecenterPath.isEmpty(), "--gamecenter is required");
+
+    QDBusConnection bus = QDBusConnection::sessionBus();
+    if (!bus.isConnected() || !bus.interface()) {
+        QSKIP("session bus not available");
+    }
+
+    QDBusInterface systemd(QStringLiteral("org.freedesktop.systemd1"),
+                           QStringLiteral("/org/freedesktop/systemd1"),
+                           QStringLiteral("org.freedesktop.systemd1.Manager"),
+                           bus);
+    if (!systemd.isValid()) {
+        QSKIP("systemd user manager not available on session bus");
+    }
+
+    if (bus.interface()->isServiceRegistered(QStringLiteral("org.kde.GameCenter1"))) {
+        QSKIP("org.kde.GameCenter1 already registered on the session bus");
+    }
+
+    if (!m_stubBin.isValid()) {
+        QSKIP("failed to create temporary directory for stub executables");
+    }
+
+    m_markerValue = QUuid::createUuid().toString(QUuid::WithoutBraces);
+    const QByteArray markerNeedle = (QStringLiteral("ALAKARTE_TEST_MARKER=") + m_markerValue).toUtf8();
+    killPids(pidsWithEnvironEntry(markerNeedle));
+
+    m_testXdgBase = QDir::tempPath() + QStringLiteral("/alakarte-stop-launching-test-xdg-") + QUuid::createUuid().toString(QUuid::WithoutBraces);
+    QVERIFY(QDir().mkpath(m_testXdgBase + QStringLiteral("/data")));
+    QVERIFY(QDir().mkpath(m_testXdgBase + QStringLiteral("/config")));
+    QVERIFY(QDir().mkpath(m_testXdgBase + QStringLiteral("/cache")));
+
+    const QString steamPath = m_stubBin.path() + QStringLiteral("/steam");
+    {
+        QFile steam(steamPath);
+        QVERIFY(steam.open(QIODevice::WriteOnly | QIODevice::Truncate));
+        const QByteArray script =
+            "#!/bin/sh\n"
+            "appid=\"\"\n"
+            "while [ $# -gt 0 ]; do\n"
+            "  if [ \"$1\" = \"-applaunch\" ] && [ $# -ge 2 ]; then appid=\"$2\"; break; fi\n"
+            "  shift\n"
+            "done\n"
+            "if [ -z \"$appid\" ]; then appid=\"123456\"; fi\n"
+            "marker=\"${ALAKARTE_TEST_MARKER_VALUE}\"\n"
+            "nohup sh -c \"sleep 1; env SteamAppId=$appid SteamGameId=$appid ALAKARTE_TEST_MARKER=$marker /bin/sleep 60\" >/dev/null 2>&1 &\n"
+            "exit 0\n";
+        QVERIFY(steam.write(script) == script.size());
+    }
+    QVERIFY(QFile::setPermissions(steamPath,
+                                  QFileDevice::ReadOwner | QFileDevice::WriteOwner | QFileDevice::ExeOwner | QFileDevice::ReadGroup | QFileDevice::ExeGroup
+                                      | QFileDevice::ReadOther | QFileDevice::ExeOther));
+
+    const QString lutrisPath = m_stubBin.path() + QStringLiteral("/lutris");
+    {
+        QFile lutris(lutrisPath);
+        QVERIFY(lutris.open(QIODevice::WriteOnly | QIODevice::Truncate));
+        const QByteArray script =
+            "#!/bin/sh\n"
+            "id=\"\"\n"
+            "if [ $# -ge 1 ]; then\n"
+            "  id=\"$1\"\n"
+            "fi\n"
+            "case \"$id\" in\n"
+            "  lutris:rungameid/*) id=\"${id##*/}\" ;;\n"
+            "  lutris:rungame/*) id=\"${id##*/}\" ;;\n"
+            "esac\n"
+            "if [ -z \"$id\" ]; then id=\"test-lutris\"; fi\n"
+            "marker=\"${ALAKARTE_TEST_MARKER_VALUE}\"\n"
+            "nohup sh -c \"sleep 1; env LUTRIS_GAME_SLUG=$id ALAKARTE_TEST_MARKER=$marker /bin/sleep 60\" >/dev/null 2>&1 &\n"
+            "exit 0\n";
+        QVERIFY(lutris.write(script) == script.size());
+    }
+    QVERIFY(QFile::setPermissions(lutrisPath,
+                                  QFileDevice::ReadOwner | QFileDevice::WriteOwner | QFileDevice::ExeOwner | QFileDevice::ReadGroup | QFileDevice::ExeGroup
+                                      | QFileDevice::ReadOther | QFileDevice::ExeOther));
+
+    QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
+    env.insert(QStringLiteral("PATH"), m_stubBin.path() + QStringLiteral(":") + env.value(QStringLiteral("PATH")));
+    env.insert(QStringLiteral("ALAKARTE_TEST_MARKER_VALUE"), m_markerValue);
+    env.insert(QStringLiteral("XDG_DATA_HOME"), m_testXdgBase + QStringLiteral("/data"));
+    env.insert(QStringLiteral("XDG_CONFIG_HOME"), m_testXdgBase + QStringLiteral("/config"));
+    env.insert(QStringLiteral("XDG_CACHE_HOME"), m_testXdgBase + QStringLiteral("/cache"));
+
+    m_gamecenter.setProcessEnvironment(env);
+    m_gamecenter.setProgram(m_gamecenterPath);
+    m_gamecenter.setArguments({});
+    m_gamecenter.setProcessChannelMode(QProcess::MergedChannels);
+    m_gamecenter.start();
+    QVERIFY(m_gamecenter.waitForStarted(5000));
+
+    QVERIFY2(waitForService(bus, QStringLiteral("org.kde.GameCenter1"), 5000), "GameCenter1 service did not appear on the session bus");
+}
+
+void StopLaunchingRegressionTest::cleanupTestCase()
+{
+    stopProcess(m_gamecenter);
+
+    if (!m_markerValue.isEmpty()) {
+        const QByteArray markerNeedle = (QStringLiteral("ALAKARTE_TEST_MARKER=") + m_markerValue).toUtf8();
+        killPids(pidsWithEnvironEntry(markerNeedle));
+        m_markerValue.clear();
+    }
+
+    if (!m_testXdgBase.isEmpty()) {
+        QDir(m_testXdgBase).removeRecursively();
+        m_testXdgBase.clear();
+    }
+}
+
+void StopLaunchingRegressionTest::stopWhileLaunchingSteam()
+{
+    QDBusConnection bus = QDBusConnection::sessionBus();
+    if (!bus.isConnected()) {
+        QSKIP("session bus not available");
+    }
+
+    QDBusInterface iface(QStringLiteral("org.kde.GameCenter1"), QStringLiteral("/org/kde/GameCenter1"), QStringLiteral("org.kde.GameCenter1"), bus);
+    QVERIFY2(iface.isValid(), "GameCenter1 DBus interface not valid");
+
+    const QString appId = QStringLiteral("987654");
+    QVariantMap spec;
+    spec.insert(QStringLiteral("provider"), QStringLiteral("steam"));
+    spec.insert(QStringLiteral("command"), QStringLiteral("steam -applaunch %1").arg(appId));
+    spec.insert(QStringLiteral("gameId"), QStringLiteral("test-steam-%1").arg(appId));
+
+    QDBusReply<QString> launchReply = iface.call(QStringLiteral("Launch"), spec);
+    QVERIFY2(launchReply.isValid(), qPrintable(launchReply.error().message()));
+    const QString sessionId = launchReply.value();
+    QVERIFY2(!sessionId.isEmpty(), "Launch returned empty sessionId");
+    const QString unitName = QStringLiteral("alakarte-game-%1.scope").arg(sessionId);
+
+    QDBusReply<void> stopReply = iface.call(QStringLiteral("Stop"), sessionId);
+    QVERIFY2(stopReply.isValid(), qPrintable(stopReply.error().message()));
+
+    const QByteArray markerNeedle = (QStringLiteral("ALAKARTE_TEST_MARKER=") + m_markerValue).toUtf8();
+    waitForAnyEnvironEntry(markerNeedle, 5000);
+
+    const bool cleaned = waitForNoEnvironEntry(markerNeedle, 15000);
+    if (!cleaned) {
+        const QList<uint> pids = pidsWithEnvironEntry(markerNeedle);
+        killPids(pids);
+    }
+    QVERIFY2(cleaned, "marker process still alive after Stop() during Launching");
+
+    QVERIFY2(waitForUnitNotActive(unitName, 15000), "systemd unit still active after Stop() during Launching");
+}
+
+void StopLaunchingRegressionTest::stopByGameIdWhileLaunchingSteam()
+{
+    QDBusConnection bus = QDBusConnection::sessionBus();
+    if (!bus.isConnected()) {
+        QSKIP("session bus not available");
+    }
+
+    QDBusInterface iface(QStringLiteral("org.kde.GameCenter1"), QStringLiteral("/org/kde/GameCenter1"), QStringLiteral("org.kde.GameCenter1"), bus);
+    QVERIFY2(iface.isValid(), "GameCenter1 DBus interface not valid");
+
+    const QByteArray markerNeedle = (QStringLiteral("ALAKARTE_TEST_MARKER=") + m_markerValue).toUtf8();
+    killPids(pidsWithEnvironEntry(markerNeedle));
+
+    const QString appId = QStringLiteral("876543");
+    const QString gameId = QStringLiteral("test-steam-stop-by-gameid-%1").arg(QUuid::createUuid().toString(QUuid::WithoutBraces));
+
+    QVariantMap spec;
+    spec.insert(QStringLiteral("provider"), QStringLiteral("steam"));
+    spec.insert(QStringLiteral("command"), QStringLiteral("steam -applaunch %1").arg(appId));
+    spec.insert(QStringLiteral("gameId"), gameId);
+
+    QDBusReply<QString> launchReply = iface.call(QStringLiteral("Launch"), spec);
+    QVERIFY2(launchReply.isValid(), qPrintable(launchReply.error().message()));
+    const QString sessionId = launchReply.value();
+    QVERIFY2(!sessionId.isEmpty(), "Launch returned empty sessionId");
+    const QString unitName = QStringLiteral("alakarte-game-%1.scope").arg(sessionId);
+
+    QDBusReply<void> stopReply = iface.call(QStringLiteral("StopByGameId"), gameId);
+    QVERIFY2(stopReply.isValid(), qPrintable(stopReply.error().message()));
+
+    waitForAnyEnvironEntry(markerNeedle, 5000);
+
+    const bool cleaned = waitForNoEnvironEntry(markerNeedle, 15000);
+    if (!cleaned) {
+        const QList<uint> pids = pidsWithEnvironEntry(markerNeedle);
+        killPids(pids);
+    }
+    QVERIFY2(cleaned, "marker process still alive after StopByGameId() during Launching");
+
+    QVERIFY2(waitForUnitNotActive(unitName, 15000), "systemd unit still active after StopByGameId() during Launching");
+}
+
+void StopLaunchingRegressionTest::stopWhileLaunchingLutris()
+{
+    QDBusConnection bus = QDBusConnection::sessionBus();
+    if (!bus.isConnected()) {
+        QSKIP("session bus not available");
+    }
+
+    QDBusInterface iface(QStringLiteral("org.kde.GameCenter1"), QStringLiteral("/org/kde/GameCenter1"), QStringLiteral("org.kde.GameCenter1"), bus);
+    QVERIFY2(iface.isValid(), "GameCenter1 DBus interface not valid");
+
+    const QByteArray markerNeedle = (QStringLiteral("ALAKARTE_TEST_MARKER=") + m_markerValue).toUtf8();
+    killPids(pidsWithEnvironEntry(markerNeedle));
+
+    const QString lutrisId = QStringLiteral("rungameid/%1").arg(QStringLiteral("lutris-test-1"));
+    QVariantMap spec;
+    spec.insert(QStringLiteral("provider"), QStringLiteral("lutris"));
+    spec.insert(QStringLiteral("command"), QStringLiteral("lutris lutris:%1").arg(lutrisId));
+    spec.insert(QStringLiteral("gameId"), QStringLiteral("test-lutris-%1").arg(QUuid::createUuid().toString(QUuid::WithoutBraces)));
+
+    QDBusReply<QString> launchReply = iface.call(QStringLiteral("Launch"), spec);
+    QVERIFY2(launchReply.isValid(), qPrintable(launchReply.error().message()));
+    const QString sessionId = launchReply.value();
+    QVERIFY2(!sessionId.isEmpty(), "Launch returned empty sessionId");
+    const QString unitName = QStringLiteral("alakarte-game-%1.scope").arg(sessionId);
+
+    QDBusReply<void> stopReply = iface.call(QStringLiteral("Stop"), sessionId);
+    QVERIFY2(stopReply.isValid(), qPrintable(stopReply.error().message()));
+
+    waitForAnyEnvironEntry(markerNeedle, 5000);
+    const bool cleaned = waitForNoEnvironEntry(markerNeedle, 15000);
+    if (!cleaned) {
+        killPids(pidsWithEnvironEntry(markerNeedle));
+    }
+    QVERIFY2(cleaned, "marker process still alive after Stop() during Launching (lutris)");
+
+    QVERIFY2(waitForUnitNotActive(unitName, 15000), "systemd unit still active after Stop() during Launching (lutris)");
+}
+
+void StopLaunchingRegressionTest::stopByGameIdWhileLaunchingLutris()
+{
+    QDBusConnection bus = QDBusConnection::sessionBus();
+    if (!bus.isConnected()) {
+        QSKIP("session bus not available");
+    }
+
+    QDBusInterface iface(QStringLiteral("org.kde.GameCenter1"), QStringLiteral("/org/kde/GameCenter1"), QStringLiteral("org.kde.GameCenter1"), bus);
+    QVERIFY2(iface.isValid(), "GameCenter1 DBus interface not valid");
+
+    const QByteArray markerNeedle = (QStringLiteral("ALAKARTE_TEST_MARKER=") + m_markerValue).toUtf8();
+    killPids(pidsWithEnvironEntry(markerNeedle));
+
+    const QString gameId = QStringLiteral("test-lutris-stop-by-gameid-%1").arg(QUuid::createUuid().toString(QUuid::WithoutBraces));
+    QVariantMap spec;
+    spec.insert(QStringLiteral("provider"), QStringLiteral("lutris"));
+    spec.insert(QStringLiteral("command"), QStringLiteral("lutris lutris:rungameid/%1").arg(QStringLiteral("lutris-test-2")));
+    spec.insert(QStringLiteral("gameId"), gameId);
+
+    QDBusReply<QString> launchReply = iface.call(QStringLiteral("Launch"), spec);
+    QVERIFY2(launchReply.isValid(), qPrintable(launchReply.error().message()));
+    const QString sessionId = launchReply.value();
+    QVERIFY2(!sessionId.isEmpty(), "Launch returned empty sessionId");
+    const QString unitName = QStringLiteral("alakarte-game-%1.scope").arg(sessionId);
+
+    QDBusReply<void> stopReply = iface.call(QStringLiteral("StopByGameId"), gameId);
+    QVERIFY2(stopReply.isValid(), qPrintable(stopReply.error().message()));
+
+    waitForAnyEnvironEntry(markerNeedle, 5000);
+    const bool cleaned = waitForNoEnvironEntry(markerNeedle, 15000);
+    if (!cleaned) {
+        killPids(pidsWithEnvironEntry(markerNeedle));
+    }
+    QVERIFY2(cleaned, "marker process still alive after StopByGameId() during Launching (lutris)");
+
+    QVERIFY2(waitForUnitNotActive(unitName, 15000), "systemd unit still active after StopByGameId() during Launching (lutris)");
+}
+
+void StopLaunchingRegressionTest::stopDirectLaunch()
+{
+    QDBusConnection bus = QDBusConnection::sessionBus();
+    if (!bus.isConnected()) {
+        QSKIP("session bus not available");
+    }
+
+    QDBusInterface iface(QStringLiteral("org.kde.GameCenter1"), QStringLiteral("/org/kde/GameCenter1"), QStringLiteral("org.kde.GameCenter1"), bus);
+    QVERIFY2(iface.isValid(), "GameCenter1 DBus interface not valid");
+
+    const QByteArray markerNeedle = (QStringLiteral("ALAKARTE_TEST_MARKER=") + m_markerValue).toUtf8();
+    killPids(pidsWithEnvironEntry(markerNeedle));
+
+    const QString gameId = QStringLiteral("test-direct-stop-%1").arg(QUuid::createUuid().toString(QUuid::WithoutBraces));
+
+    const QString envExe = QStandardPaths::findExecutable(QStringLiteral("env"));
+    if (envExe.isEmpty()) {
+        QSKIP("env executable not found");
+    }
+
+    QVariantMap spec;
+    spec.insert(QStringLiteral("provider"), QStringLiteral("manual"));
+    spec.insert(QStringLiteral("program"), envExe);
+    spec.insert(QStringLiteral("args"),
+                QStringList{QStringLiteral("ALAKARTE_TEST_MARKER=%1").arg(m_markerValue), QStringLiteral("/bin/sleep"), QStringLiteral("60")});
+    spec.insert(QStringLiteral("gameId"), gameId);
+
+    QDBusReply<QString> launchReply = iface.call(QStringLiteral("Launch"), spec);
+    QVERIFY2(launchReply.isValid(), qPrintable(launchReply.error().message()));
+    const QString sessionId = launchReply.value();
+    QVERIFY2(!sessionId.isEmpty(), "Launch returned empty sessionId");
+    const QString unitName = QStringLiteral("alakarte-game-%1.scope").arg(sessionId);
+
+    QVERIFY2(waitForAnyEnvironEntry(markerNeedle, 5000), "direct launch marker process did not appear");
+
+    QDBusReply<void> stopReply = iface.call(QStringLiteral("Stop"), sessionId);
+    QVERIFY2(stopReply.isValid(), qPrintable(stopReply.error().message()));
+
+    const bool cleaned = waitForNoEnvironEntry(markerNeedle, 15000);
+    if (!cleaned) {
+        killPids(pidsWithEnvironEntry(markerNeedle));
+    }
+    QVERIFY2(cleaned, "marker process still alive after Stop() (direct launch)");
+
+    QVERIFY2(waitForUnitNotActive(unitName, 15000), "systemd unit still active after Stop() (direct launch)");
+}
+
+void StopLaunchingRegressionTest::stopByGameIdDirectLaunch()
+{
+    QDBusConnection bus = QDBusConnection::sessionBus();
+    if (!bus.isConnected()) {
+        QSKIP("session bus not available");
+    }
+
+    QDBusInterface iface(QStringLiteral("org.kde.GameCenter1"), QStringLiteral("/org/kde/GameCenter1"), QStringLiteral("org.kde.GameCenter1"), bus);
+    QVERIFY2(iface.isValid(), "GameCenter1 DBus interface not valid");
+
+    const QByteArray markerNeedle = (QStringLiteral("ALAKARTE_TEST_MARKER=") + m_markerValue).toUtf8();
+    killPids(pidsWithEnvironEntry(markerNeedle));
+
+    const QString gameId = QStringLiteral("test-direct-stop-by-gameid-%1").arg(QUuid::createUuid().toString(QUuid::WithoutBraces));
+
+    const QString envExe = QStandardPaths::findExecutable(QStringLiteral("env"));
+    if (envExe.isEmpty()) {
+        QSKIP("env executable not found");
+    }
+
+    QVariantMap spec;
+    spec.insert(QStringLiteral("provider"), QStringLiteral("manual"));
+    spec.insert(QStringLiteral("program"), envExe);
+    spec.insert(QStringLiteral("args"),
+                QStringList{QStringLiteral("ALAKARTE_TEST_MARKER=%1").arg(m_markerValue), QStringLiteral("/bin/sleep"), QStringLiteral("60")});
+    spec.insert(QStringLiteral("gameId"), gameId);
+
+    QDBusReply<QString> launchReply = iface.call(QStringLiteral("Launch"), spec);
+    QVERIFY2(launchReply.isValid(), qPrintable(launchReply.error().message()));
+    const QString sessionId = launchReply.value();
+    QVERIFY2(!sessionId.isEmpty(), "Launch returned empty sessionId");
+    const QString unitName = QStringLiteral("alakarte-game-%1.scope").arg(sessionId);
+
+    QVERIFY2(waitForAnyEnvironEntry(markerNeedle, 5000), "direct launch marker process did not appear");
+
+    QDBusReply<void> stopReply = iface.call(QStringLiteral("StopByGameId"), gameId);
+    QVERIFY2(stopReply.isValid(), qPrintable(stopReply.error().message()));
+
+    const bool cleaned = waitForNoEnvironEntry(markerNeedle, 15000);
+    if (!cleaned) {
+        killPids(pidsWithEnvironEntry(markerNeedle));
+    }
+    QVERIFY2(cleaned, "marker process still alive after StopByGameId() (direct launch)");
+
+    QVERIFY2(waitForUnitNotActive(unitName, 15000), "systemd unit still active after StopByGameId() (direct launch)");
+}
+
+int main(int argc, char **argv)
+{
+    QCoreApplication app(argc, argv);
+
+    const QStringList args = app.arguments();
+    const QString gamecenterPath = takeArgValue(args, QStringLiteral("--gamecenter"));
+    app.setProperty("alakarte_test_gamecenter", gamecenterPath);
+
+    QStringList filtered;
+    filtered.reserve(args.size());
+    if (!args.isEmpty()) {
+        filtered.push_back(args.first());
+    }
+    for (int i = 1; i < args.size(); ++i) {
+        const QString a = args.at(i);
+        if (a == QLatin1String("--gamecenter")) {
+            ++i;
+            continue;
+        }
+        filtered.push_back(a);
+    }
+
+    StopLaunchingRegressionTest tc;
+    return QTest::qExec(&tc, filtered);
+}
+
+#include "stop_launching_regression_test.moc"