M3 Code

M3 Code is Martin's fork of T3 Code, a minimal web GUI for coding agents (currently Codex, Claude, Cursor, and OpenCode, more coming soon).

Installation

Warning

M3 Code currently supports Codex, Claude, Cursor, and OpenCode. Install and authenticate at least one provider before use:

• Codex: install Codex CLI and run codex login
• Claude: install Claude Code and run claude auth login
• Cursor: install Cursor CLI and run cursor-agent login
• OpenCode: install OpenCode and run opencode auth login

Run without installing

npx t3@latest

Tip: Use npx t3@latest --help for the full CLI reference.

Desktop app

Build the desktop app locally from this fork while M3-specific releases are being set up:

vp run build:desktop

Some notes

We are very very early in this project. Expect bugs.

We are not accepting contributions yet.

There's no public docs site yet, checkout the miscellaneous markdown files in docs.

Documentation

• Getting started
• Architecture overview
• Provider guides
• Operations
• Reference

If you REALLY want to contribute still.... read this first

Install vp

M3 Code uses Vite+ so you'll need to install the global vp command-line tool.

macOS / Linux

curl -fsSL https://vite.plus | bash

Windows

irm https://vite.plus/ps1 | iex

Checkout their getting started guide for more information: https://viteplus.dev/guide/

Install dependencies

vp i

Read CONTRIBUTING.md before opening an issue or PR.

Need support? Join the Discord.