You make music. Kirin OS measures it. Plug Hypha (free, VST3, GPLv3) into your DAW before and after your chain. Each playback writes a structured record — LUFS, True Peak, Crest, Zwicker loudness (N, sones), Sharpness, PSR, LRA, and PLR. Everything is bundled with the audio's provenance into a tamper-evident　 .kirin file, so the measurement travels with the sound. No guessing. No processing. No server. Kirin Sense ($59) and Kirin OS ($497) launch June 6th. Hypha ships free under GPLv3.