It was tricky both because the website that retrogamecorps linked sometimes didn’t work and there are many variations of the SM64 ROM that all play identically but the website that reads your ROM only works with one particular version. I downloaded several before I found one that worked.
Note that SM64 (and OoT, but I don’t think that’s on Android yet) are special cases. These have been reverse engineered by the community to the point that they’ve manually decompiled the entire game, and then separately ported to modern platforms. The project in the OP is different, as it’s made for games that don’t have this effort behind them
I followed this guide:
https://retrogamecorps.com/2020/12/28/guide-super-mario-64-port-on-rg351p/
It was tricky both because the website that retrogamecorps linked sometimes didn’t work and there are many variations of the SM64 ROM that all play identically but the website that reads your ROM only works with one particular version. I downloaded several before I found one that worked.
Note that SM64 (and OoT, but I don’t think that’s on Android yet) are special cases. These have been reverse engineered by the community to the point that they’ve manually decompiled the entire game, and then separately ported to modern platforms. The project in the OP is different, as it’s made for games that don’t have this effort behind them