headless build tools
https://godotengine.org/article/core-refactoring-progress-report-2
said headless is now possible.... but how?
https://docs.godotengine.org/en/latest/getting_started/editor/command_line_tutorial.html
possibly --video-driver I could also use --audio-driver to mute audio
if not ask in the chat channel.
Depends on #123 as a prerequisite