There are several 'romset' compilations available at archive org, but none of them are of any use with Pemsa, because it either won't read png or return an error (both for .png and p8.png). Is there a way to convert png cart to p8 format, readable by this application?...

I prefer WASD+Num 1-3 keys (or JKL, if num is not available) Is there a way to add custom key binds?

10/10 would buy

I mean, yes it runs PICO-8 carts but... why? Why use this over PICO-8 itself or just playing the carts on their webpages?

Looking forward to this. Any update? Thanks!