diff --git a/sources/awesome-widget/plugin/awcustomkeyshelper.h b/sources/awesome-widget/plugin/awcustomkeyshelper.h
index b555605..53ceeed 100644
--- a/sources/awesome-widget/plugin/awcustomkeyshelper.h
+++ b/sources/awesome-widget/plugin/awcustomkeyshelper.h
@@ -34,7 +34,7 @@ public:
     [[nodiscard]] QStringList sources() const;
     [[nodiscard]] QStringList refinedSources() const;
     // configuration related
-    void editPairs() override{};
+    void editPairs() override {};
     QStringList leftKeys() override;
     QStringList rightKeys() override;
 };
diff --git a/sources/awesome-widget/plugin/awdataengineaggregator.cpp b/sources/awesome-widget/plugin/awdataengineaggregator.cpp
index 9189cdc..5665f07 100644
--- a/sources/awesome-widget/plugin/awdataengineaggregator.cpp
+++ b/sources/awesome-widget/plugin/awdataengineaggregator.cpp
@@ -95,13 +95,55 @@ void AWDataEngineAggregator::loadSources()
 }
 
 
+void AWDataEngineAggregator::registerClient(QObject *_client)
+{
+    qCDebug(LOG_AW) << "Register client" << _client;
+
+    // register new client
+    m_clients.insert(_client);
+    // (re)connect sources for new client
+    connectSources();
+}
+
+
+void AWDataEngineAggregator::unregisterClient(QObject *_client)
+{
+    qCDebug(LOG_AW) << "Unregister client" << _client;
+
+    m_clients.remove(_client);
+    for (auto [source, clients] : m_droppedBy.asKeyValueRange()) {
+        if (clients.remove(_client)) {
+            if (isSubscriptionUnused(source))
+                dropSource(source);
+        }
+    }
+}
+
+
 void AWDataEngineAggregator::dropSource(const QString &_source)
 {
     qCDebug(LOG_AW) << "Disconnect sensor" << _source;
 
-    m_interface->unsubscribe({_source}).waitForFinished();
-    m_interface->unsubscribe({_source}).waitForFinished();
-    m_subscribed.remove(_source);
+    if (m_subscribed.remove(_source))
+        m_interface->unsubscribe({_source}).waitForFinished();
+}
+
+
+void AWDataEngineAggregator::dropSourceForClient(QObject *_client, const QString &_source)
+{
+    qCDebug(LOG_AW) << "Client" << _client << "dropping source" << _source;
+
+    m_droppedBy[_source].insert(_client);
+
+    // only unsubscribe if ALL clients have dropped this source
+    if (isSubscriptionUnused(_source))
+        dropSource(_source);
+}
+
+
+bool AWDataEngineAggregator::isSubscriptionUnused(const QString &_source) const
+{
+    return m_droppedBy.value(_source).size() >= m_clients.size() && !m_clients.isEmpty();
 }
 
 
diff --git a/sources/awesome-widget/plugin/awdataengineaggregator.h b/sources/awesome-widget/plugin/awdataengineaggregator.h
index a528302..0a0eeb9 100644
--- a/sources/awesome-widget/plugin/awdataengineaggregator.h
+++ b/sources/awesome-widget/plugin/awdataengineaggregator.h
@@ -23,6 +23,7 @@
 #include <QObject>
 #include <QSet>
 
+#include <memory>
 
 namespace KSysGuard::SystemStats
 {
@@ -34,12 +35,26 @@ class AWDataEngineAggregator : public QObject
     Q_OBJECT
 
 public:
-    explicit AWDataEngineAggregator(QObject *_parent = nullptr);
     ~AWDataEngineAggregator() override;
+
+    AWDataEngineAggregator(AWDataEngineAggregator &) = delete;
+    void operator=(const AWDataEngineAggregator &) = delete;
+
+    [[nodiscard]] static AWDataEngineAggregator *instance(QObject *_client)
+    {
+        static auto instance = loadInstance();
+        instance->registerClient(_client);
+        return instance.get();
+    };
+
     void connectSources();
     void disconnectSources();
+    void dropSourceForClient(QObject *_client, const QString &_source);
+    [[nodiscard]] inline bool isSubscriptionUnused(const QString &_source) const;
     [[nodiscard]] static bool isValidSensor(const KSysGuard::SensorInfo &_sensor);
     void loadSources();
+    void registerClient(QObject *_client);
+    void unregisterClient(QObject *_client);
 
 signals:
     void dataUpdated(const QHash<QString, KSysGuard::SensorInfo> &_sensors, const KSysGuard::SensorDataList &_data);
@@ -52,7 +67,18 @@ public slots:
     void updateData(const KSysGuard::SensorDataList &_data);
     void updateSensors(const QHash<QString, KSysGuard::SensorInfo> &_sensors);
 
+protected:
+    explicit AWDataEngineAggregator(QObject *_parent = nullptr);
+
+    [[nodiscard]] static std::unique_ptr<AWDataEngineAggregator> loadInstance()
+    {
+        auto instance = new AWDataEngineAggregator();
+        return std::unique_ptr<AWDataEngineAggregator>(instance);
+    };
+
 private:
+    QSet<QObject *> m_clients;
+    QHash<QString, QSet<QObject *>> m_droppedBy;
     KSysGuard::SystemStats::DBusInterface *m_interface = nullptr;
     QHash<QString, KSysGuard::SensorInfo> m_sensors;
     QSet<QString> m_subscribed;
diff --git a/sources/awesome-widget/plugin/awkeys.cpp b/sources/awesome-widget/plugin/awkeys.cpp
index 4b11db2..1729666 100644
--- a/sources/awesome-widget/plugin/awkeys.cpp
+++ b/sources/awesome-widget/plugin/awkeys.cpp
@@ -43,7 +43,7 @@ AWKeys::AWKeys(QObject *_parent)
 
     m_aggregator = new AWKeysAggregator(this);
     m_dataAggregator = new AWDataAggregator(this);
-    m_dataEngineAggregator = new AWDataEngineAggregator(this);
+    m_dataEngineAggregator = AWDataEngineAggregator::instance(this);
     m_keyOperator = new AWKeyOperations(this);
 
     m_timer = new QTimer(this);
@@ -59,7 +59,8 @@ AWKeys::AWKeys(QObject *_parent)
     connect(m_dataAggregator, &AWDataAggregator::toolTipPainted,
             [this](const QString &_tooltip) { emit(needToolTipToBeUpdated(_tooltip)); });
 
-    connect(this, &AWKeys::dropSourceFromDataengine, m_dataEngineAggregator, &AWDataEngineAggregator::dropSource);
+    connect(this, &AWKeys::dropSourceFromDataengine, this,
+            [this](const QString &_source) { m_dataEngineAggregator->dropSourceForClient(this, _source); });
     connect(m_dataEngineAggregator, &AWDataEngineAggregator::dataUpdated, this, &AWKeys::dataUpdated);
     // transfer signal from dataengine to update source list
     connect(m_dataEngineAggregator, &AWDataEngineAggregator::deviceAdded, m_keyOperator, &AWKeyOperations::addDevice);
@@ -70,6 +71,8 @@ AWKeys::~AWKeys()
 {
     qCDebug(LOG_AW) << __PRETTY_FUNCTION__;
 
+    m_dataEngineAggregator->unregisterClient(this);
+
     m_timer->stop();
     // delete dbus session
     auto id = reinterpret_cast<qlonglong>(this);
@@ -294,8 +297,8 @@ QString AWKeys::parsePattern(QString _pattern) const
     // bars
     for (auto &bar : m_foundBars) {
         auto item = m_keyOperator->giByKey(bar);
-        auto image = item->isCustom() ? item->image(
-                         AWPatternFunctions::expandLambdas(item->bar(), m_aggregator, m_values, item->usedKeys()))
+        auto image = item->isCustom() ? item->image(AWPatternFunctions::expandLambdas(item->bar(), m_aggregator,
+                                                                                      m_values, item->usedKeys()))
                                       : item->image(m_values[item->bar()]);
         _pattern.replace(QString("$%1").arg(bar), image);
     }
diff --git a/sources/awesome-widget/plugin/formatters/awpluginformatter.h b/sources/awesome-widget/plugin/formatters/awpluginformatter.h
index 57b4789..be5c8c0 100644
--- a/sources/awesome-widget/plugin/formatters/awpluginformatter.h
+++ b/sources/awesome-widget/plugin/formatters/awpluginformatter.h
@@ -32,7 +32,7 @@ public:
     [[nodiscard]] virtual QString format(const QVariant &_value, const QString &_key,
                                          const AWPluginFormatSettings &_settings) const
         = 0;
-    virtual void load(){};
+    virtual void load() {};
 };
 
 
diff --git a/sources/awtranslation.h b/sources/awtranslation.h
index 583be19..de5bf09 100644
--- a/sources/awtranslation.h
+++ b/sources/awtranslation.h
@@ -22,4 +22,3 @@
 #ifndef ui_i18n
 #define ui_i18n(text, parent) i18n(text)
 #endif /* ui_i18n */
-