We need to do some form of this but I’m not exactly sure what yet. I suspect same process but multiple globals might work well. A lot of tests spend time sleeping or waiting for things. They might benefit from that kind of paralellism (like async/await, except between things it runs a whole other global object)

Threads could also work but the problem is you have to re parse & evaluate all the code. That’s a lot of duplicate work. It’s probably still worth it for large enough apps