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?
Unpopular opinion from what I’ve seen in this forum, but for me it is Nextcloud followed by Jellyfin.
I use Nextcloud setup fory whole family, about a dozen all together. I even sprang for the DavX5 plugin for several people so we can share calendars and contacts as well as files and notes. We backup photos from our phones using the Nextcloud app. Several of us use it as a backend for KeePass.
We use Jellyfin for streaming; movies, tv, music videos and music. It is the backend storage and library organizer for four Kodi boxes, five browsers, several phones and tablets and a couple of Roku’s. It works like a champ, even with the occasional library re-sync.