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CommunityCookbooks & Demos3 starsVerified 2026-09-22

jev-canvas

A tldraw canvas controlled by voice and a webcam-tracked fingertip: every partial transcript triggers one Jev request through OpenRouter's Decisions API that decides the action, shape, colour, and place.

Open github.comgaborishka/jev-canvas
Category
Cookbooks & Demos
Published by
Community
Author
gaborishka
Added
2026-09-22
Tagscommunityjavascriptbrowserdemoopenrouter

Highlights

  • Commands work in English and Ukrainian, switching the recogniser between en-US and uk-UA; it understands one language at a time.
  • Actions cover create, move, delete, recolor, resize, duplicate, clear, and undo/redo, with 12 shape types and the 13 tldraw colours.
  • Speech not addressed to the canvas is ignored: 'what do you want for lunch' scores is_command around 2% and nothing happens.
  • With no camera or microphone, hovering the mouse, pressing /, and typing a command takes exactly the same path as a finished spoken sentence.
  • Pinching a shape and moving your hand drags it directly with no model call, and two commands in one breath both work.

Quickstart

bash
git clone https://github.com/gaborishka/jev-canvas.git
cd jev-canvas
cp .env.example .env   # paste your key after OPENROUTER_API_KEY=
npm install
npm run dev   # open http://127.0.0.1:5183

Watch out

MIT-licensed; needs Chrome or Edge for the Web Speech API, a webcam for pointing, Node 22.12+, and an OpenRouter key with alpha Decisions API access, which rate-limits bursts with HTTP 429.

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From the community

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