brewlog/README.md
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Replace "you/your" with impersonal alternatives across all
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# B{rew}log
**B{rew}log** is a self-hosted coffee logging platform for tracking roasters, roasts, brews,
cafes and brewing gear. It ships as a single Rust binary that serves a web UI, a REST API, and a
CLI client.
- **Web UI** with reactive updates via [Datastar](https://data-star.dev/) and [Tailwind CSS v4](https://tailwindcss.com/)
- **REST API** for programmatic access (reads are public, writes require auth)
- **CLI client** for terminal-based workflows
- **AI extraction** — scan a coffee bag label or type a description to auto-fill forms (via [OpenRouter](https://openrouter.ai/))
- **Nearby cafe search** powered by [Foursquare Places](https://docs.foursquare.com/developer/reference/place-search)
- **SQLite** database
- **Passkey authentication** — no passwords, WebAuthn only
## Quick Start
### Install
```bash
cargo install --git https://github.com/jnsgruk/brewlog.git
```
### Configure
Create a `.env` file (or export the variables). Four values are required:
```bash
BREWLOG_RP_ID="localhost"
BREWLOG_RP_ORIGIN="http://localhost:3000"
BREWLOG_OPENROUTER_API_KEY="sk-or-..."
BREWLOG_FOURSQUARE_API_KEY="fsq3..."
```
### Run
```bash
brewlog serve
```
On first start with an empty database the server prints a one-time registration URL:
```
No users found. Register the first user at:
http://localhost:3000/register/abc123...
This link expires in 1 hour.
```
Open that URL, choose a display name, and register a passkey. This creates an account and
signs in automatically.
### CLI Authentication
To use the CLI or API for write operations, create a token via browser handoff:
```bash
brewlog token create --name "my-cli-token"
# Browser opens → authenticate with a passkey → token printed once
export BREWLOG_URL="http://localhost:3000"
export BREWLOG_TOKEN="<token from above>"
# Create data from the CLI
brewlog roaster add --name "Radical Roasters" --country "United Kingdom"
```
Run `brewlog --help` for the full command reference.
## Configuration
All settings are read from environment variables or CLI flags. A `.env` file in the working
directory is loaded automatically via [dotenvy](https://crates.io/crates/dotenvy).
### Server (`brewlog serve`)
| Variable | Purpose | Default |
| ------------------------ | ------------------------------------------------------ | --------------------- |
| `BREWLOG_RP_ID` | WebAuthn Relying Party ID (server domain) | **required** |
| `BREWLOG_RP_ORIGIN` | WebAuthn Relying Party origin (full URL) | **required** |
| `BREWLOG_DATABASE_URL` | Database connection string | `sqlite://brewlog.db` |
| `BREWLOG_BIND_ADDRESS` | Server bind address | `127.0.0.1:3000` |
| `BREWLOG_INSECURE_COOKIES` | Disable the `Secure` cookie flag (set `true` for local dev over HTTP) | `false` |
| `RUST_LOG` | Log level filter | `info` |
| `RUST_LOG_FORMAT` | Set to `json` for structured log output | — |
### CLI Client
| Variable | Purpose | Default |
| --------------- | ------------------------------------- | ----------------------- |
| `BREWLOG_URL` | Server URL | `http://localhost:3000` |
| `BREWLOG_TOKEN` | API bearer token for write operations | — |
### Integrations
| Variable | Purpose | Default |
| ---------------------------- | --------------------------------------------------------------------------- | ----------------- |
| `BREWLOG_OPENROUTER_API_KEY` | [OpenRouter](https://openrouter.ai/) API key for AI extraction | **required** |
| `BREWLOG_OPENROUTER_MODEL` | LLM model for AI extraction | `openrouter/free` |
| `BREWLOG_FOURSQUARE_API_KEY` | [Foursquare](https://foursquare.com/) Places API key for nearby cafe search | **required** |
### Database
SQLite is used for storage. Migrations run automatically on server startup.
## Running with Docker
The Nix flake includes a Docker image built with `dockerTools`:
```bash
nix build .#brewlog-container
docker load < result
```
Create a `docker.env` file:
```env
BREWLOG_OPENROUTER_API_KEY=sk-or-...
BREWLOG_OPENROUTER_MODEL=google/gemini-3-flash-preview
BREWLOG_FOURSQUARE_API_KEY=fsq3...
BREWLOG_RP_ID=localhost
BREWLOG_BIND_ADDRESS=0.0.0.0:3000
BREWLOG_RP_ORIGIN=http://localhost:4000
BREWLOG_INSECURE_COOKIES=true
```
```bash
mkdir data
docker run --rm -p 4000:3000 --env-file docker.env -v $PWD/data:/data brewlog:0.1.0
```
The database is stored at `/data/brewlog.db` inside the container — mount a host directory to `/data` to persist it.
## Contributing
```bash
cargo build # Build
cargo clippy --allow-dirty --fix # Lint
cargo fmt # Format
cargo test # Test
```
See [CLAUDE.md](CLAUDE.md) for architecture, code patterns, and development conventions.
## License
[Apache License 2.0](LICENSE)