Thanks for this comment! It was one of the only ones that was truly constructive and helpful. Many of the other ones were just mad at me :). I appreciate you taking the time to write this out.

I tried a bunch of stuff here and got some gain switching to arm64 containers, but still am facing compile times at around 1 minute. compile times outside (just on my Mac) are around 2 seconds, for reference. Here's my HN plea for help: https://news.ycombinator.com/item?id=34163514