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Lorenz Attractor Demo

In script and slip the bright web babbles, JavaScript, root and rot of all our little evils, and had we clipped that vine in the dawn of wires, we'd dine tomorrow already, silver-souled, in the future tense.

A small static site with a Scala-doc-inspired layout and an animated Lorenz attractor, configured for Cloudflare Workers.

Project files

  • public/index.html — page structure and styling
  • public/lorenz.js — Lorenz system simulation and canvas rendering
  • worker.js — minimal Cloudflare Worker that serves static assets
  • wrangler.toml — Cloudflare Workers configuration
  • package.json — local scripts for dev, config checking, and deployment

Run locally

Run commands from the project root (web/).

Simple static preview

python3 -m http.server 8000 --directory public

Then open http://localhost:8000.

Cloudflare Workers preview

npm install
npm run dev

Wrangler will print a local preview URL, typically http://127.0.0.1:8787.

Deploy to Cloudflare Workers

Before deploying, make sure public/ is committed to git. Cloudflare's remote build only sees files present in the repository snapshot it checks out.

  1. Authenticate Wrangler if needed:
npx wrangler login
  1. Optionally validate the config and bundle before deployment:
npm run check
  1. Deploy:
npm run deploy

If you are deploying from a Git-connected Cloudflare project, also make sure the project root is the repository root that contains wrangler.toml, worker.js, and public/.

Notes

  • The Worker serves everything from the public/ directory via the ASSETS binding.
  • The canvas is responsive and supports high-DPI displays.
  • If the device requests reduced motion, the page renders a still frame instead of a continuous animation.
  • Styling is embedded in public/index.html to keep the site portable and simple.
  • The project is pinned to wrangler 3.x so it can be validated locally on Node 18 in this workspace.
  • npm run verify:cloudflare checks that the required deploy files exist before a dry run or real deploy.