This is the snap for Darktable, "Virtual lighttable and darkroom for photographers". It works on Ubuntu, Fedora, Debian, and other major Linux distributions.
sudo snap install darktable
Simply search for Darktable in the dash. If you prefer the command-line, just run darktable
.
Note that the interface providing access to removable media (e.g. external hard drives, SD cards, etc.) is not automatically connected upon install. If you'd like to access removable media, you need to give the snap permission to do so by connecting that interface:
sudo snap connect darktable:removable-media