I think everybody on here is constantly keeping an eye out for what to host next. Sometimes you spinup something which chugs along nicely but sometimes you find out you’ve been missing out.
For me it’s not very refreshing or new: Paperless-ngx. Never thought I would add all my administration to it. But it’s great. I probably can’t find the thing I need, but I should have a record of every mail or letter I’ve gotten. Close second is Wanderer. But I would like to have a little bit more features like adding recorded routes to view speed and compare with previous walks. But that’s not what it is intended for.
What is that service for you?
If you’d permit a short quiz. Ntfy is really interesting to me. I would like to send general server updates and didn’t know how to ensure users, just family and friends, get them. I think ntfy could solve that problem, right now I just text and maintain a bookstack document.
I would also like to send user specific notifications though. For example a user requests a show from Jellyseerr, the admin legally obtains said show and uploads it to jellyfin, user then gets notification that the show they requested is available.