@johnvoorhees @viticci For the next edition, may I suggest @nholzschuch's a-Shell and a-Shell mini?
it allows running Python scripts as well as native binaries of ffmpeg and ImageMagick. and if you need a proper shell there's dash
The #ShortcutsApp in macOS can run shell scripts. In iOS #shortcuts we have a-Shell and a-Shell mini
And they're open source, free, have no tracking, and updated constantly