Apparently, Wikifunctions is a place to define e.g. mathematical formulas, so that they can be executed ad-hoc to provide insights about common questions.
Certainly makes sense to run those functions sandboxed in WebAssembly, since the function code is user-provided.
And then, yeah, I can imagine the process management making up a good amount of the complexity of their backend code...
Yeah, sometimes you can hear a cue from what everyone else is playing, but sometimes you just sit there, counting beats in your head as well as measures on your fingers and in your head, to give yourself as much redundancy as possible for when you inevitable fuck up.
And then the 37th measure is in 5/4 time for whatever reason, which you can't even hear either, and if you haven't counted flawlessly up to that point, it just completely throws you off.