Normie Agent Harness (fork of T3 Code)

This is LAG-4/t3code, a separate product fork of pingdotgg/t3code for non-developers — think Claude Cowork / ChatGPT Work, but BYO-provider with OpenCode free models. Not an upstream contribution branch: do not open PRs to upstream. Upstream is MIT (T3 Tools Inc); that copyright + license notice is preserved in LICENSE.

Agent instructions live in AGENTS.md (fork goal, cut/keep/add lists, normie vocabulary, dev loop). User flow: pick folders → pick Free (OpenCode) or your provider → chat, files, history, schedules. Dev jargon (branches, worktrees, diffs, PRs, terminals, editors) is hidden behind SIMPLE_MODE.

Doer

Doer is a free forever, open-source AI helper for everyday work — writing, research, files, plans, job applications and more. Hand it the boring work: it runs on your machine with a desktop app and a web app. No terminal. No jargon.

Doer starts free with OpenCode's free models (Big Pickle first, then other free Zen models when available — the default for new tasks) plus your subscriptions on Codex, Claude Code, Cursor, Grok Build, and Google Antigravity. If they're set up on your computer, Doer can use them.

• Site: doer.lagaryan.click
• Downloads: GitHub Releases
• License: MIT — built on top of T3 Code and OpenCode.

"Wait, what are you selling me?"

Nothing. Doer is free forever: the app costs nothing, it starts on free models, and it only ever asks for a subscription you already have if you outgrow them. It exists because AI help shouldn't require a terminal, a tutorial, or a new subscription — just a computer and something you'd rather not do yourself.

Installation

Warning

Doer starts free with OpenCode's free models and also supports Codex, Claude, Cursor, Grok Build, and Antigravity. Install and authenticate at least one provider before use:

• OpenCode (default, free): install OpenCode and run opencode auth login. New threads use Big Pickle (opencode/big-pickle), then other *-free Zen models when Big Pickle isn't available.
• Codex: install Codex CLI and run codex login
• Claude: install Claude Code and run claude auth login
• Cursor: install Cursor CLI and run agent login
• Grok Build: install Grok Build CLI and run grok login
• Antigravity: enable it in Settings, then use Install Antigravity and Sign in with Google. No CLI is required.

Try it out (install-free)

The easiest way to test Doer is to run the server in your terminal (requires Node.js 22.16+, 23.11+, or 24.10+):

npx doer-cli@latest

This will launch Doer's backend on your machine as well as the local web app to get things done.

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

Desktop app

Install the latest version of the desktop app from GitHub Releases.

Alpha builds are unsigned: on macOS, right-click the app and choose Open the first time. Windows may show a SmartScreen warning.

Some notes

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

We are (mostly) not accepting contributions yet. Small fixes may be considered. Big features will not be.

Documentation

Full docs live in docs/. There's no docs site yet.

• Install and first run
• Permission modes
• Keyboard shortcuts
• Project settings
• Remote access from a phone or another machine
• Keeping app and server in sync
• Source control integrations
• Multiple accounts: OpenCode · Codex · Claude
• Run Doer as a background service

Building from source? Start at docs/internals/overview.md.

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

Install vp

Doer 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 reporting a bug or opening a PR.

Have a feature request? Open an issue.

Need support? Join the Discord.