Cool project. Unfortunately, the reality with password managers is that if I'm going to use it, then it needs to support Windows, Mac, Linux; have a good CLI; support all major browsers; and have apps and autofill on most mobile devices. And they need to sync, through my own server. Most password manager projects have one or two of these, but it's gonna need the whole package for me to switch to it.

Have you heard of "pass"? It's a minimal but very practical password manager best used on *nix terminal, but has great extensions and works on Android and iOS. (the iOS app is the main thing keeping me on my iPhone...). Everything is free and open-source.

https://www.passwordstore.org/

Caveat: It's self-hosted.