Hi! I’ve been experimenting with OpenAI's new apps SDK and found it, rough. The example project is unstructured, full of hardcoded file hashes, and takes hundreds of lines just to get something working.

So I built Chat.js — an open-source framework that makes building ChatGPT apps actually pleasant.

10-line apps instead of 300+ — just define a component’s name, title, schema, and handler. Chat.js auto-generates all the MCP wiring.

No version drift — both build and server use the same package.json hash, so filenames always match.

Works with two files — drop your component in /components, describe it in /server, and it runs in ChatGPT in under 3 minutes.

It’s 0% hardcoded, 100% automated, and open-source. Repo: https://github.com/DooiLabs/Chat.js

Would love feedback from anyone building with the apps SDK — or ideas for what kind of ChatGPT apps this framework could enable.