Fast offline export via OfflineAudioContext (render to WAV, not realtime capture)

You were right that Csound should render to a file fast. @csound/browser ties performance to the audio clock (1x), but an OfflineAudioContext renders an AudioWorklet graph faster than realtime and silently.

Verified: 16s song renders in ~10.8s (faster than realtime), silent, real audio -> 3MB WAV / 342KB MP3.

▶ Play it: Neon Fiscal Year → Benthic Patience → Silken Reentry — a constellation across three families — the path is the mix https://stellate.app/?genre=citypop&seed=8274&path=1530.6221,586.10667,1376.19565&xdur=0.056

e9b6f7a https://github.com/aboard-io/stellate/commit/e9b6f7a20e19a88d58ccce41eace746f3f911a42