# Self-Hosting Setup (for AI Agents)

This document is designed for AI agents to execute. Follow these steps exactly to deploy a local Multica instance and connect to it.

## Prerequisites

- Docker and Docker Compose installed
- Homebrew installed (for CLI)
- At least one AI agent CLI on PATH: `claude` or `codex`

## Install

```bash
# Install CLI + provision self-host server
curl -fsSL https://raw.githubusercontent.com/multica-ai/multica/main/scripts/install.sh | bash -s -- --with-server

# Configure CLI for localhost, authenticate, and start daemon
multica setup self-host
```

Wait for the server output `✓ Multica server is running and CLI is ready!` before running `multica setup self-host`.

**Expected result:**
- Frontend at http://localhost:3000
- Backend at http://localhost:8080
- `multica` CLI installed and configured for localhost

## Alternative: Manual Setup

```bash
git clone https://github.com/multica-ai/multica.git
cd multica
make selfhost
brew install multica-ai/tap/multica
multica setup self-host
```

The `multica setup self-host` command will:
1. Configure CLI to connect to localhost:8080 / localhost:3000
2. Open a browser for login — use the emailed code, or the generated code printed in backend logs when Resend is unset
3. Discover workspaces automatically
4. Start the daemon in the background

## Verification

```bash
multica daemon status
```

Should show `running` with detected agents.

## Stopping

```bash
# Stop the daemon
multica daemon stop

# Stop all Docker services
cd multica
make selfhost-stop
```

## Custom Ports

If the default ports (8080/3000) are in use:

1. Edit `.env` and change `PORT` and `FRONTEND_PORT`. These are host ports; the
   containers keep listening on 8080/3000 internally, so no rebuild is needed.
2. Run `make selfhost`
3. Run `multica setup self-host --port <PORT> --frontend-port <FRONTEND_PORT>`

Edit the file rather than relying on environment variables: `make` `include`s
`.env`, so a value in the file outranks the same variable from your shell
(`PORT=9100 make selfhost` is ignored when `.env` sets `PORT`). A command-line
assignment does take effect (`make selfhost PORT=9100`), and Docker Compose
invoked directly is the reverse again — there the environment outranks `.env`.

`BACKEND_PORT` is an optional alias that overrides `PORT` for the backend;
`API_PORT` and `SERVER_PORT` follow in that order. Whichever route you use, the
startup output is read back from Docker Compose, so the address it prints is the
one the stack is actually published on.

## Troubleshooting

- **Backend not ready:** `docker compose -f docker-compose.selfhost.yml logs backend`
- **Frontend not ready:** `docker compose -f docker-compose.selfhost.yml logs frontend`
- **Daemon issues:** `multica daemon logs`
- **Health checks:** `curl http://localhost:8080/health` for liveness, `curl http://localhost:8080/readyz` for dependency-aware readiness