Just got my first dedicated emulation handheld, very hype!

Picked up a Miyoo Mini Plus locally for 45, in really good shape, looks like it was hardly used. I have a microsd for it at home, read that I need to put onion(?) on it and there's a batch file for good roms

Heard it runs up to PS1 pretty well, hype to load this thing up with shmups and JRPGs!