The last couple of months I've been working on a little #rss reader that doubles as a (read-only) #mastodon client. The UI is closer to a Mastodon/Twitter feed than an email inbox.
I'm still experimenting with it, and it's missing a bunch of basic stuff, but I did add some cool features already, like an embedded reader mode and a send to #kindle button.
It uses #python #flask for the backend and #htmx #hyperscript #bulma for the UI.