If you want to manage your own password vault, KeepassXC for desktop and KeepassDX for mobile, using syncthing for syncing. Vaultwarden is a option for a more involved self-hosted set up.
If you want someone else to manage your password vault, Bitwarden for desktop and mobile.
Those are the only meaningful options that I'm aware of if you want an open-source solution.
If you want to manage your own password vault, KeepassXC for desktop and KeepassDX for mobile, using syncthing for syncing. Vaultwarden is a option for a more involved self-hosted set up.
If you want someone else to manage your password vault, Bitwarden for desktop and mobile.
Those are the only meaningful options that I'm aware of if you want an open-source solution.
Seconded.
oh snap you already mentioned syncthing. My whole ass post was irrelevant. Good taste. Good post.