How to Play - WryOpussum/sm64ex-coop-wiki-update GitHub Wiki
Compile
In order to play the game, you have to turn this code, and the original SM64 rom, into an executable.
There are multiple ways to do this.
On Windows
The easiest way is to use coop-compiler.
This program takes the rom and does all of the compiler magic automatically, but offers no customization.
Or you can use the more customizable sm64pcbuilder2.
This program compiles multiple different SM64 projects, and allows you to customize them, but requires you to set up MSYS2.
On any OS
You can also compile the traditional way by downloading all of the necessary tools and using the terminal.
After you get it working, you can read more info on hosting and joining here.