Gregory's Server@djwudi sadly no self hosting; though I might push for that later (I'm the one on the team yelling BUT WHAT ABOUT OPEN SOURCE FOLK / ALT TEXT IS REQUIRED).
We target non-tech folk. The most advanced you'd need to really know is how an FTP client works (if you choose to hook your camera or laptop up to us for direct upload). The rest is all web interface.
@ccook I at least have curiosity (and as an accessibility advocate, appreciate that there’s someone yelling about alt text). Maybe I could help? No worries and good luck if not, of course!