Hi @ski3r!
No need anymore someone did all the work for us.
Check it out. In my experience they give a very good starting point for edits.
But actually these days I’m mostly plaing around with the spectra film module. If you really love the “filmic” look you can try to install the 5.7 (WIP) version of darktable and give that a try too.
I’ve upgraded my camera to the X-T5 since, so if you still need the classic cuban neg jpeg with the corresponding RAF file let me know and I will include it in this thread