Qt 6.5: Deploying to Linux with CMake - QML runtime missing

Question

I'm developing a Qt/QML application on Ubuntu 22.04 with the official Qt SDK 6.5.3 and I'm referring to these instructions:

https://www.qt.io/blog/deploying-to-linux-with-cmake

This worked otherwise fine, but I get this when I try to run my application:

2025-02-17T20:13:24.034 [I] Application: Loading entry point qrc:/qt/qml/noteahead/view/qml/Main.qml
QQmlApplicationEngine failed to load component
qrc:/qt/qml/noteahead/view/qml/Main.qml:20:1: module "QtQuick.Dialogs" is not installed
qrc:/qt/qml/noteahead/view/qml/Main.qml:19:1: module "QtQuick.Controls.Universal" is not installed
qrc:/qt/qml/noteahead/view/qml/Main.qml:18:1: module "QtQuick.Controls" is not     installed
qrc:/qt/qml/noteahead/view/qml/Main.qml:17:1: module "QtQuick" is not installed

And yes, that's correct - they are not installed on my system outside the SDK. However, I was under impression that the CMake magic script would bundle also the needed QML runtime in the .deb..? The installation config in my CMakeLists.txt is now like this:

qt_add_qml_module(${BINARY_NAME}
    URI ${URI}
    QML_FILES ${QML_SOURCE_FILES}
    RESOURCES ${SVG_SOURCE_FILES}
)

target_compile_definitions(${BINARY_NAME} PRIVATE $<$<OR:$<CONFIG:Debug>,$<CONFIG:RelWithDebInfo>>:QT_QML_DEBUG>)
target_compile_definitions(${BINARY_NAME} PRIVATE QML_ROOT_DIR="${QML_ROOT_DIR}")
target_compile_definitions(${BINARY_NAME} PRIVATE QML_ENTRY_POINT="${MAIN}")
target_link_libraries(${BINARY_NAME} PRIVATE Qt6::Core Qt6::Quick rtmidi SimpleLogger Argengine)

install(TARGETS ${BINARY_NAME}
    RUNTIME DESTINATION bin
)

# Install the executable into "${CMAKE_INSTALL_PREFIX}/bin".
install(TARGETS ${BINARY_NAME}
    BUNDLE DESTINATION .
    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
)

# Generate the deployment script for the target Noteahead.
qt_generate_deploy_app_script(
    TARGET ${BINARY_NAME}
    OUTPUT_SCRIPT deploy_script
    NO_UNSUPPORTED_PLATFORM_ERROR
)

# Call the deployment script during "cmake --install".
install(SCRIPT ${deploy_script})

# Set up CPack for Debian packaging
set(CPACK_PACKAGE_NAME "noteahead")
set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "Noteahead MIDI Tracker")
set(CPACK_PACKAGE_INSTALL_DIRECTORY ${CPACK_PACKAGE_NAME})
set(CPACK_VERBATIM_VARIABLES ON)
set(CPACK_PACKAGING_INSTALL_PREFIX "/opt/noteahead")
set(CPACK_DEBIAN_PACKAGE_DEPENDS libc6 libstdc++6 libgcc-s1 libasound2 librtmidi6)
include(CPack)

This all seems to be a bit pointless if I need to manually still add all runtime packages as dependencies: qml6-module-qtqml qml6-module-qtcore qml6-module-qtquick-dialogs qml6-module-qtquick-templates.

The problem is that I need Qt 6.5+ and it's available in the repositories only in Ubuntu 24.10 and later.