I wasn't a raver but I went to a couple, and wow, what a time. There's nothing quite like the smell of a diesel generator and the sound of earth-shaking bass surrounded by dancing zombies inventing dance moves on each beat, deep in a pacific north west forest. I had a few of friends who were into that scene.
So now when I go back to see him there's all these people there that I've known since forever, living in the same building. It's oddly comforting. They've struck the just-right balance between being too close and too far apart. They see each other regularly but there isn't a gathering every day.
From an arbitrary mid-sized project: About 400 classes split into 10 submodules. Clean build without tests: 3.7 seconds.