What should I do to begin using this incremental compiler if I'm already using alexzzzz's? Do I just install it into my project anyway and it'll work or?
Unity3D.IncrementalCompiler uses alexzzzz's work as a binder but both are mutual exclusive. So if you want to use IncrementalCompiler, you should remove alexzzzz's one 😉
What should I do to begin using this incremental compiler if I'm already using alexzzzz's? Do I just install it into my project anyway and it'll work or?