I’ve been a happy user of Pass (https://www.passwordstore.org/) for a few years now. Can’t see it being monetized any time soon, which is a Good Thing. So is its strict adherence to the Unix philosophy.
Got any insight there?
For Android there is https://github.com/android-password-store/Android-Password-S....
The only Windows client listed at https://www.passwordstore.org/#other is unmaintained.