That eventually turned into building the password manager I actually wanted to use myself: Android-only, local-first, offline-first, and built around keeping the vault on-device.
I’ve been using it daily for a while now, and that shaped the app more than trying to chase a giant feature checklist.
It’s called VeilVault. I published the crypto/storage core separately for anyone who wants to inspect the local encryption and storage side.
Play Store: https://play.google.com/store/apps/details?id=com.codeveil.v...
Crypto/storage core: https://github.com/DG-Lev/veilvault-crypto-core
Happy to answer questions about the design choices, security model, or where I deliberately chose not to follow the usual cloud-sync route.