How did you make the wasm file?

[futurepr0n]

Curious about trying to take on a web based sm64 coop dx mod that works like this does but need some more help understanding how this is made.

Curious if there is a chat channel where could be discussed or email.

Was also trying to do some funky stuff with this current version but had some trouble. Tried making a floating touch screen controller but the input press seem to stop functioning after the canvas/wasm loads (after pressing start to begin the rom load). Any idea how to approach that problem so input would be registering in game from the web page overlay button?