Add the Beams interactive acoustics post - #583
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Beams is an interactive acoustic simulation post served at /posts/2026/08/beams/ with redirect_from beams, so p13i.io/beams/ lands on it. The page self-hosts the demo binaries under static/beams/ (built from p13i/cs branch beams-mycool-games, target //cs/apps/web/mycool.games:index_raytracer.js) and embeds the demo page verbatim: canvas, layer controls, echogram, and the Web Audio bridge script, wrapped in raw fences so Liquid leaves the JavaScript alone. The prose is the model-and-assumptions text from the demo site.
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Kramdown truncated the 33 KB inline bridge script while rendering the post, which left a syntax error, no Module.canvas, and a blank canvas on the deploy preview. The bridge now ships as static/beams/bridge.js and the post references it with a script tag, so the Jekyll renderer never touches the JavaScript. Verified locally: the module boots, the canvas paints, and the arrivals API returns paths.
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Summary
Adds the Beams interactive acoustics post at /posts/2026/08/beams/ with
redirect_from: "beams", so p13i.io/beams/ lands on a fully working, self-hosted copy of the demo. The two demo binaries live under static/beams/ (built from p13i/cs branch beams-mycool-games, target //cs/apps/web/mycool.games:index_raytracer.js); the post embeds the demo page's styles, canvas/controls/echogram DOM, and Web Audio bridge script verbatim inside raw fences, plus the model-and-assumptions prose.Verification
The exact raw-HTML block was extracted, served locally with /static/beams/ at the same paths, and exercised in Chrome: the wasm module boots, a pointer press starts the audio and steering, the arrivals API returns paths, the echogram canvas and all six control buttons are present, and the URL state syncs. Front matter parses;
redirect_frommatches the existing chess-post shape; the raw fences are balanced and no Liquid tokens appear inside the embedded script.Not tested: a local Jekyll build (no local Ruby/Docker toolchain) — the deploy preview is the rendering check.
Written by Claude