using MacOS -h/—help works - but not as expected: After the help message is displayed, the application should not start; at least, some parts of the program are launched: > /Applications/Decodium4.app/Contents/MacOS/Decodium4 --help main() START Decodium version: 1.0.506 legacy metatypes OK Qt Quick graphics backend defaulted to Metal QApplication OK Pipeline cache path: /Users/migri/Library/Caches/IU8LMC/Decodium/qsg_pipeline_cache.bin Qt version: 6.11.1 OS: macOS Tahoe (26.5.2) ABI=arm64-little_endian-lp64 CPU=arm64 QSG_RHI_BACKEND=metal QSG_RHI_PREFER_SOFTWARE_RENDERER=<unset> QT_OPENGL=<unset> QT_QUICK_BACKEND=<unset> QML_DISABLE_DISK_CACHE=<unset> QML_DISK_CACHE_PATH=<unset> DECODIUM_SAFE_GRAPHICS=<unset> DECODIUM_GRAPHICS_BACKEND=<unset> DECODIUM_DISABLE_QML_CACHE=<unset> application icon OK Qt Quick text render type forced: QtTextRendering [UI] QML style: "Material" QQuickStyle resolved: Material Usage: /Applications/Decodium4.app/Contents/MacOS/Decodium4 [options] Decodium 4.0 Core Gallager: Digital Modes for Weak Signal Communications in Amateur Radio Options: -h, --help Displays help on commandline options. --help-all Displays help, including generic Qt options. -v, --version Displays version information. -r, --rig-name <rig-name> Where <rig-name> is for multi-instance support. -c, --config <configuration> Where <configuration> is an existing one. -l, --language <language> Where <language> is <lang-code>[-<country-code> ]. --test-mode Writable files in test location. Use with caution, for testing only. --safe-graphics, --disable-gpu, --software-rendere Use the Windows software r graphics renderer for Qt Quick startup troubleshooting. --reset-safe-graphics Clear automatic Windows safe graphics and persistent D3D11 fallback markers. [...] (Many more) --lab-quit-ms <ms> Delay before quitting the runtime lab session. QThread: Destroyed while thread '' is still running QWaitCondition::wakeOne(): mutex lock failure (Invalid argument) QWaitCondition::wakeOne(): cv signal failure (Invalid argument) QWaitCondition::wakeOne(): mutex unlock failure (Invalid argument) QWaitCondition::wakeOne(): mutex lock failure (Invalid argument)