Let the main thread breathe!
summary
Claim: offload CPU work from the main thread to avoid janky frames. Tools demonstrated: Comlink proxy for WebWorker to call worker functions as promises, AssemblyScript → WASM for predictable native‑like compute, and CSS Paint Worklet for off‑main‑thread rendering. A browser demo encodes camera capture to MP4 with ffmpeg.js in WASM running in a worker; animation stays smooth and conversion completes in‑browser. Advice: measure on low‑end phones, spawn only blocking tasks, terminate workers when done.
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