observantTrapezium

Not sure it satisfies your requirements but I’m quite happy with Baïkal.

Borg is great.

Abrechnung is really good and actively developed and improving. The UI is already pretty satisfactory, and there’s also an API which is needed if for example you want to bulk-import a spreadsheet, for now you have to code it a bit.

Came here to say just that. The WebDAV synchronization target is great.

Joplin as well, syching my 3 devices with the WebDAV option. I checked a few other options about a year ago and Joplin seemed the best.

A mid-late 24th century Starfleet runabout?

Piper is my choice. Very easy to use from the command line, fairly good sounding voices. Prior to that, for years (decades?) I used espeak-ng, had a very robotic voice but articulated almost everything very clearly, and I got used to it so didn’t actually mind.

I’m very happy with self-hosted Vaultwarden.

Baikal is lean and great. I use it and sync to my Thunderbird (using the TbSync extension) and Android phone (using DAVx⁵).