Obsidian and Bitwarden self hosted alternative that can be run in docker container.

Well not 100% sure about Docker but Tiddlywiki is pretty easily hosted! It’s got some quirks, but in the end it’s just an HTML file (or slightly more complex if hosted as a website), so it should stay relevant for a long time. I enioy making notebooks with it for various things!

Nextcloud has a pretty decent passwords manager and I think firefox plugins for it. I personally use SyncThing to sync KeePass databases and use the nextcloud passwords app for low-risk things we share, like streaming service passwords. :)