The entire project can be compiled targeting Emscripten. There's nothing particular to the browser implementation
sidewndr46
The last update video I watched from MattKC indicated they were still deciding how to approach this. Based on the commit dates in that tree, it looks like they must have completed it.
gbraad
I believe one of the DevolutionX (diablo) developers did this
The entire project can be compiled targeting Emscripten. There's nothing particular to the browser implementation