Advice about complex project like xonsh shell

[anki-code]

Hello! Thank you for this awesome thing!

I want to build portable standalone file for the xonsh shell. The xonsh shell is complex app with lazy loading, process management and modern technologies.

I tried to build xonsh with PyOxidizer and faced with errors around __file__s, etc. Before I continue I would like to ask you an advice. May be you can mention some similar complex projects where I can take the experience of solving issues?

Thanks!

cc #245