Due to recent events, i find myself back to square one and with very little insight on how to proceed.

I need a computer for my sibling. They is at an art school, doing 2d animation. As such, they don't need a beefy cpu but they need a good amount of (preferably upgradable) ram, and a lot of storage as well, and that needs to be swappable, no other way around it, usb drives are way too slow for uncompressed high quality animated images with tons of transparent layers.
On top of that, they need a stylus screen. They already has a graphic tablet, but it's not the kind you can take at uni or in vacation.

Please tell me framework are not the only ones to have something like that...
Boosts, renotes or whatever you call them might help