diff --git a/src/gui/CMakeLists.txt b/src/gui/CMakeLists.txt
index 3f62bef..bde8dfc 100644
--- a/src/gui/CMakeLists.txt
+++ b/src/gui/CMakeLists.txt
@@ -8,11 +8,12 @@ set(CMAKE_AUTOUIC ON)
 set(CMAKE_AUTORCC ON)
 
 # Find the QtWidgets library
-find_package(Qt5Widgets CONFIG REQUIRED)
-find_package(Qt5PrintSupport CONFIG REQUIRED)
+find_package(Qt6 COMPONENTS Widgets Network PrintSupport CONFIG REQUIRED)
+#find_package(Qt5Widgets CONFIG REQUIRED)
+#find_package(Qt5PrintSupport CONFIG REQUIRED)
 
 # For SingleApplication:
-find_package(Qt5Network CONFIG REQUIRED)
+#find_package(Qt5Network CONFIG REQUIRED)
 set(QAPPLICATION_CLASS QApplication)
 add_compile_definitions(QAPPLICATION_CLASS=${QAPPLICATION_CLASS})
 
@@ -40,7 +41,9 @@ set(GUI_SOURCES
 add_executable(kima2 ${GUI_SOURCES} kima2.rc)
 target_include_directories(kima2 PRIVATE ${PROJECT_BINARY_DIR})
 target_include_directories(kima2 PRIVATE ${PROJECT_SOURCE_DIR}/subprojects/singleapplication/singleapplication.git)
-target_link_libraries(kima2 core printer Qt5::Widgets Qt5::PrintSupport Qt5::Network stdc++fs)
+# target_link_libraries(kima2 core printer Qt5::Widgets Qt5::PrintSupport Qt5::Network stdc++fs)
+target_link_libraries(kima2 core printer Qt::Core Qt::PrintSupport Qt::Network stdc++fs)
+
 if(WIN32)
     set_target_properties(kima2 PROPERTIES LINK_FLAGS "-mwindows")
 endif(WIN32)
diff --git a/src/gui/kima2.cpp b/src/gui/kima2.cpp
index 20fb3ba..bd5b470 100644
--- a/src/gui/kima2.cpp
+++ b/src/gui/kima2.cpp
@@ -7,12 +7,13 @@
 #include <QMessageBox>
 #include <QSettings>
 #include <QSharedMemory>
-#include <QTranslator>
 #include <QStyleFactory>
+#include <QTranslator>
 
 #include <singleapplication.h>
+#include <stdexcept>
 
-int main(int argc, char* argv[])
+int main(int argc, char *argv[])
 {
     SingleApplication kimaApp(argc, argv);
 
@@ -23,7 +24,11 @@ int main(int argc, char* argv[])
     QTranslator qTranslator;
     QLocale german(QLocale::German);
 #ifdef __linux__
-    qTranslator.load("qt_" + german.name(), QLibraryInfo::location(QLibraryInfo::TranslationsPath));
+    bool retVal =
+        qTranslator.load("qt_" + german.name(), QLibraryInfo::path(QLibraryInfo::TranslationsPath));
+    if (!retVal) {
+        throw std::runtime_error("Could not load translation.");
+    }
 #endif
 #ifdef _WIN32
     QApplication::setStyle(QStyleFactory::create("Fusion"));
diff --git a/src/gui/mainwindow.cpp b/src/gui/mainwindow.cpp
index c69da27..526fe1b 100644
--- a/src/gui/mainwindow.cpp
+++ b/src/gui/mainwindow.cpp
@@ -96,7 +96,7 @@ MainWindow::MainWindow()
     connect(m_ui.aboutQtAction, &QAction::triggered, this, &MainWindow::onAboutQt);
     connect(m_ui.aboutAction, &QAction::triggered, this, &MainWindow::onAbout);
     connect(m_ui.openManualAction, &QAction::triggered, this, []() {
-        auto locations = QStandardPaths::standardLocations(QStandardPaths::DataLocation);
+        auto locations = QStandardPaths::standardLocations(QStandardPaths::AppDataLocation);
         for (auto location : locations) {
             if (QFile::exists(location + QString("/Benutzerhandbuch.pdf"))) {
                 QDesktopServices::openUrl(