Open-Source

Antler is an open-source monorepo with multiple applications:

Mobile App - React Native / Expo app.

Website - HTML / CSS / Markdown.

IRL Browser Specification

Antler uses an open specification to pass data between the app to your website. When users scan your QR code, their profile details on Antler get shared to your site - no auth friction, instant login, no account creation.

Why using open specification matters: Being an open specification means anyone can create an alternative to Antler. This means if you are a developer, you get the benefits of integrating your website with Antler and know you are not locked into a closed platform.

Examples:

Here are some example apps you can fork to get started:

Check-in into an event (Cloudflare - Recommended): Uses Cloudflare Workers, Durable Object and D1 Storage.

Check-in into an event (Self-hosted): Same app as above but using REST API, SQLite, and SSE. You can self-hosted via Docker.

Draw On My Phone Game: Scan QR code to get into the same room, then you draw a word → pass your phone to the person next to you → they can guess your drawing, and so on (similar to Telestrations or Garlic Phone)