Not sure what your hardware looks like but I set up a degoogled RPI running on linageos 22. Been running solid for about 6 months now. Definitely not a beginner project, took me a bit of work to get it up and running but hasn’t failed me yet!

https://konstakang.com/devices/rpi4/LineageOS22-ATV/

Its honestly a coin toss. Great resource for finding books, don’t get me wrong, but its hit or miss if the book you want is in the right format for what you’re asking.

On the hiking note, it also shows a lot of trails. I used it to navigate to a trail head and was pleasantly surprised to see a rough outline of the trails I would be using plus some others I didn’t know were there.