To anyone who was annoyed by the fact that you couldn’t do lens corrections in the Darktable snap: that’s fixed in the next release, v2.2.5snap2. Please give v2.2.5snap2-rc1 a test to make sure, it’s in the candidate channel:
$ sudo snap install --candidate darktable-kyrofa
If you’re a photographer, particularly if you have some experience using Darktable, or even if you just want to poke at it, I’d love some help putting it through its paces! Please let me know if you run into any issues.