this looks great, but can't test, the .deb package is broken with an issue about NODE_MODULE_VERSION mismatches. There seems to be a PR waiting for approval. Will keep an eye on it.
nice! I made github.com/frostyard/plow last week with a serverless take on this (just for debian repos though). Being served by gh-pages means no git-lfs support though. repogen might be a better option if any packages get too big.
I did exactly this, put it in a 2U case. Fantastic performance, but even with the best Noctua I could put on it the CPU fan sounds like a Hawker Harrier doing VTOL when it's under load. Don't regret the board, but wish my rack was in another room now.
You can adjust some fan settings in the BIOS, like what temperature it starts turning on, the PWM setting when it first turns on, and the temperature at which it hits PWM of 100%. After tuning those a bit, mine is pretty quiet unless I'm compiling with all cores or something.
Charlie, thanks for all your work on JRuby. It helped me smuggle Ruby and OSS into environments that were openly hostile towards both :) Good luck with the sponsors, I'm sure you'll do well.