OK. I’m working with an AppImage Rawtherapee now but it is at least a few months old. I’m building a new hotrod Ryzen 7 gaming machine with 32 gig ram (I don’t do games, this is for video editing). I’ll be putting the latest and greatest everything on that box. Later today.
That’s a good answer. Thank you.
PS. I do see the “Luminosity Masking” tutorial here on pixls.us is Darktable specific.