Not that I know of unfortunately. Installing it isnt all that hard, depending on the model one just need a special USB adapter, courage and a Linux terminal :)

Valetudo anyone?

I saw this too, appreciate the question.

I use Jerboa, never tried anything else. Does the job

Just a quick thought. These days you can create a special partition in the first part of your drive and just boot from it. No grub, no config really. You might want to take a look at EFI and an EFI system partition perhaps?

+1 for Organic Maps. Create an open streetmap account and contribute - its a game changer for me. Instead of a consumer, you’re a contributor. (That goes for all OSM ofc)