On a scale of a PC to having to jail break an iPhone to do custom stuff - how invasive is what you are mentioning for the RM2? I have one, love it for notes/etc. But haven't tried 3rd party software/etc on it.
https://remarkable.guide/ has a bunch of current information on the state of hacking your device. You have root access out of the box, which means how invasive it is depends on how you go about it. The community is trying their best to stick to a set of standards that keeps things from being too brittle, and "just works".
