Fix argparse handling when no subcommand given
Implement check command
Implement i18n command
Add Ctrl+F TOC
Implement merge command
Implement source tarball creation
Implement macOS builds
Implement Linux builds
Support building for multiple platforms
Disable test building
Debug-log executed commands
Allow cross-compilation without Docker when using vcpkg
Implement macOS codesigning and notarization
Remove obsolete globals
Check xcode setup
Implement GPG signing
Re-enable Git branch checkout
Show key selection for merge commit signing
Check for git and merge basic and tool checks
Remove redundant checkout message
Update headline formatting
