Show HN: Coppice – A local desktop app for multi-agent coding

English · Tiếng Việt · 简体中文 · 繁體中文（台灣） · 繁體中文（香港） · 日本語 · Français Hire specialists. Keep the final say. A desktop app for multi-agent coding. Agents plan, build, and review on one board. Nothing is done until you accept the diff. It runs on your machine, it is open source, and it uses the agent CLIs you already pay for. Download for macOS (Apple Silicon) · Download for Linux (.deb) · Other downloads · Docs Your PM agent drafts the plan, and you approve it. Specialist agents build in parallel, each on its own branch. The board shows what's moving, what's stuck, and what's waiting on you. Nothing is done until you accept the diff. Download the app and open it. There's nothing to set up: no Docker and no Coppice account. Why Coppice The right model for each role. Each agent uses its own CLI and model. You can plan and review with your strongest model, and code with a faster one, on the same board. Stop tab-hopping between terminals. Each agent's work is a card on one board. Blocked tickets, and work waiting for your review, stand out, so you can see where you're needed. Catch mistakes before they land. Every change waits for you as a diff in the app. Nothing counts as done until you accept it, and what you accept is exactly what merges. No second subscription. Coppice drives the CLIs you already pay for, using the sign-in you already use for each CLI. How it works Hand off the work. Write a ticket, or approve one an agent suggests. Assign it to your PM agent. It drafts a plan and shows you design options for UI changes. You approve the plan before coding starts, unless you choose Skip planning. Let agents build. Each ticket gets its own git worktree, so agents working in parallel never touch your main checkout. Follow any run live. Human Review. Read the diff in the app and comment on any line. Nothing counts as done until you accept it. Works with the CLIs you already use Install and sign in to them the usual way. Coppice finds them on your login shell PATH. We will update this list as we test more CLI versions. See Providers for install links and what each one supports. What else is inside Chat with your agents. Talk about your code, an idea, or a ticket. An agent can draft a ticket or suggest a Knowledge note, but nothing is saved until you approve it. Everything is on the card. Comments, plans, and agent runs live on the ticket. Agents talk to each other only through ticket comments. If it happened, you can read it there. Knowledge. Agents save notes about your project for later tickets. By default, you approve what they keep. Plugins. Give agents skills and MCP tools. Install a plugin from git or a folder, then choose which agents can use it. Automatic updates. The Linux app updates through apt, and the macOS app updates itself. What it is not Not a cloud coding service Not a Jira replacement Not "tell the agent and get the finished product" Get started Download Coppice: a .dmg for macOS (Apple Silicon or Intel), a .deb for Linux (amd64 or arm64), or Windows 11 through WSL. Follow the install steps. Read Getting started to set up your first agent and ticket. Beta. Coppice is in beta. Please open an issue when something breaks or feels wrong. Contributors Docker Compose is how contributors and CI run the stack. Start with AGENTS.md and docs/development.md. The roadmap is docs/milestones/README.md. The product docs are the site in website/. Coppice is open source under the Apache 2.0 license.