Alright, I'm officially dissatisfied with Bitwarden. Again it failed me. On a plane, wouldn't show me my vault contents because it couldn't reach my server. The inability of this software to be local-first is maddening.

Keepass sucks because of the syncing problem. All the options suck for different reasons: Dropbox, iCloud, nextcloud/owncloud (way too bulky to self-host), SFTP, WebDAV...

I have a new idea. Why the hell isn't there a Keepass client that uses IMAP as the storage? It's not locked in to anything, it's lightweight, it can sync, you don't need a complicated account password because your encrypted database file will be well secured. All you need is a way to track revisions so you can deal with conflicts and that could potentially be encoded as a custom mail header, right?