you know what's funny, I also have a threadripper rig (which is my main development rig) and it ran _slower_ than on the 13900k. Like. by a lot. and while that surprised me at first, it's makes a lot of sense because this is Node.js in the end (i.e. the TypeScript typechecker runs within Node.js) and that means it's single threaded. So single-threaded perf is all that matters.