I googled. There do appear to be `codesign` implementations on other platforms now https://stackoverflow.com/questions/14321559/using-mac-os-command-codesign-in

I googled. There do appear to be `codesign` implementations on other platforms now https://stackoverflow.com/questions/14321559/using-mac-os-command-codesign-in-linux https://stackoverflow.com/questions/14321559/using-mac-os-co... as well . No clue if they work