Claes, this is something that’s buzzing round my head too. I nearly started writing after your post a few days ago but didn’t find the time in the end.
RT is really good and I expect it will be my mainstay for a good while yet.
However I’ve been thinking : what is the ultimate workflow? Is that what you have in mind by “software setup”?
There’s a lot I don’t know also, but I’m thinking:
Raw conversion: Like @Elle mentioned the other day, use UFRaw or similar to decide the white balance, and note the factors. Then use Elle’s 32bit version of DCRAW to do the demosaicing, outputting 32bits of course, probably linear gamma (but I need to do some homework here).
Subsequent edits: Recent Gimp using the relatively new features for most beautiful colours etc!
It would be nice if RT could output 32bit (as recently suggested) and maybe was better at showing out-of-gamut areas.
I should admit I know nothing about Darktable, precious little about Photoflow, and nothing about various other FOSS apps which feature in Pixls.
P.S. Was typing whilst Carmelo Dr Raw posted…!