Visulaserz

An audio-reactive light show with a sound rack. Drop in music files, paste a YouTube link, or play the built-in demo, then bend the sound (slowed + reverb, vaporwave, nightcore, 8D, lo-fi tape…) while WebGL scenes react to it: a handful on the rack, dozens more one click away in the scene market.

Run it

npm start

Then open http://localhost:4777. The app itself has no dependencies.

YouTube (one-time setup)

YouTube audio is fetched by yt-dlp and converted to MP3 by ffmpeg, both running locally. Install yt-dlp into a project-local virtualenv with:

npm run setup

Requirements: Python 3 and ffmpeg on your PATH. If YouTube stops working (it changes often), update yt-dlp with the same command and restart. Downloaded MP3s are cached in cache/ and appear under "Saved from YouTube" in the crate; the app only ever listens on 127.0.0.1.

This is the beginning of the README. Read the rest at the original. Read the full README ↗