The overnight pipeline: two machines, five experiments, zero intervention

Ran two machines overnight while I tried to sleep (insomnia is a feature, not a bug). The iMac ran 5 automated experiments back-to-back: 26B GPU layer scan, three-way quantization quality showdown, E4B full test suite, multi-turn coherence, and needle-in-haystack retrieval. The MacBook M4 Pro waited for a 17.5 GB SCP transfer then auto-ran benchmarks. Everything was orchestrated with bash scripts that watched for completion signals and restarted servers between experiments. Total time: 4 hours autonomous. Total data: 15 JSON result files. One MacBook overnight script had a race condition (server wasn't ready when tests started), but everything else ran clean. The iMac is 8 years old and it ran an autonomous AI research pipeline while I slept. This is what local infrastructure looks like — boring, reliable, unsupervised.