I am happy to help. I am no math or computer genius, and I have learned to use the Linux command line, write simple scripts and explore the massive amounts ofhelpful Linux advice on the internet. Regarding your backup issues, here is a place to start:
This has, so far, been a 100% reliable method of backing up stuff from my Digitone. I have also upgraded my DN firmware twice using amidi (command line utility) with zero problems.
Again, I’m happy to walk you through the commands, if you are feeling fearful.
And Elektroid, though I’ve only used in once with my Digitakt, worked perfectly well and is a GUI application.
My journey into Linux started when I still used a Mac but was arranging a lot of music using Gnu LilyPond. Printed music is created in LilyPond by starting with text-only documents which are then compiled into PDF. That got me started down the road of WYSIWYM (what you see is what you mean) computing. Learning to get around the Linux command line environment is a series of baby steps. But, at every level of understanding, there are cool things you can do!
Let me know if I can help!