Microbridge exists because the Codex Micro is an open piece of hardware, and that is not an accident — it is a choice OpenAI made.
OpenAI is a for-profit company, and it would have been easy to lock the Micro to a single first-party app: a closed protocol, an exclusive USB claim, no way for anyone else to light a key. They did the opposite.
- They shipped the device kit in the open. The full Work Louder protocol travels inside the ChatGPT desktop app, which is how a community project like this one could learn the framing and RPC without a single reverse-engineered firmware dump.
- They open the HID interface non-exclusively. The Micro can be driven by more than one program at a time, so third-party software can coexist with the official experience instead of fighting it. Microbridge only works because of that decision.
- They keep giving users a choice. Codex CLI is open source, the models are reachable over documented APIs, and the tooling favors interoperability over lock-in. Consumers get options, and options are good for everyone.
None of that was required of them. We think it is worth saying thank you when a company consistently chooses to give its users room to build — so: thank you.
Microbridge is an independent community project and is not affiliated with, sponsored by, or endorsed by OpenAI or Work Louder. This note is simply our appreciation, offered freely.
For designing a genuinely hackable macropad — one that is also configurable through Work Louder Input / VIA — and for building the hardware the whole project is aimed at.
And to everyone who writes an adapter, files an issue, or plugs in a device and tells us what really happens. Adapters are the point of this project; see CONTRIBUTING.md.