Found a lil' #neat nugget:

GitHub

GitHub - voidauth/voidauth: Single Sign-On for Your Self-Hosted Universe 🐈‍⬛🔒

Single Sign-On for Your Self-Hosted Universe 🐈‍⬛🔒. Contribute to voidauth/voidauth development by creating an account on GitHub.

Thing's sick AF - their authZ feature is literally their USP - no other homelab SSO solution has this good of a setup for that. Stupidly good, absolutely love it.