Nover very likely works just fine. Nover uses the calculator's hardware directly, so the OS version shouldn't matter too much. However, I don't know how overclockable new hardware revisions are. I know the early CXs could overclock a lot, but I don't know about the new ones. You'll probably be able to get at least some boost, though.

Thank you very much. It got stuck in a bootloop the first time probably because I misunderstood something. But all it took was a complete shut off and turn on. I installed Ndless upon startup and Nover started doing its thing. It ended up crashing at 252 and went back to 234 "stable" for now. Works just fine and I can see the difference, especially in games. Thank you for your reply!