I’ve compared the two a while ago, seems to me like slightly different takes around the same core ideas. It’s true that a couple of things in Ansel feel more natural, but it’s not much, and it’s probably not worth the risk (AFAICT the bus factor is one, compat with DT isn’t a goal).

Darktable developers pride themselves for their non-destructive processing pipeline and use it as an excuse for how quirky and inflexible their UX is. I believe they are highly competent on the highly technical bits that ultimately very few people see or understand. Personally I can use it to an extent if I unlearn what other software have taught me over decades of UX conventions.

And so damn easy to self-host in general. Ejabberd is batteries included down to offering stun/turn for audio/video calls, Erlang is just unrivaled when it comes to hot reloading so updates are effectively zero-downtime (unsurprising considering all the business critical environments it’s deployed).

At first (and especially because I went with Matrix originally) I wouldn’t think of self hosting all my instant messaging, but in retrospect, ejabberd is one of the easiest services I’ve got to maintain. I highly recommend everyone to give it a shot, especially to all the matrix refugees to whom it was a surprise/disappointment.