Stay away from ARM laptops and SoCs, they aren't there yet when it comes to Linux. If you like to tinker, go for it, but expect hardware to just not work, or worse, you'll get stuck on a kernel fork that never gets updated.
If you want a good Linux machine, buy one from a vendor that explicitly sells and supports machines with Linux on them.
IMO you can tinker as much as you want without forcing hardware compatibility issues upon yourself in order to have something to tinker with.
Yeah, we're in weird territory because you can drive an LLM as a Bitcoin mixer over intellectual property. That's the entire point/meaning behind https://ghuntley.com/z80.
You can take something that exists, distill it back to specs, and then you've got your own IP. Throw away the tainted IP, and then just run Ralph over a loop. You are able to clone things (not 100%, but it's better than hiring humans).
AI output isn't copyrighted in the US.