Retroid Pocket 3 Plus (rp3+) setup

(This is a working document, regularly updated. Created on 2022-12-29.) The hardware is nice: the device feels sturdy and premium, the screen is bright and the controls work as expected. Great work, Retroid! Compared to a single system device, software configuration is certainly more complicated in emulation-land. Although Retroid provides more than the basics, if you are into game emulation, you know your setup will need some tweaking to get the best out of the hardware. In fact, emulation on Android is pretty similar to emulation on non-handheld devices with projects like Batocera or RetroPie on Linux… but not quite. There is a considerable amount of setup-work on Android. ...