139 lines
5.7 KiB
Markdown
139 lines
5.7 KiB
Markdown
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**B{rew}log** is a self-hosted specialty coffee logging platform optimised for filter brewing
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enthusiasts. B{rew}log can be used for tracking roasters, roasts, brews, cafes and brewing gear.
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B{rew}log features an LLM-powered "Bag Scanning" feature, which enables it to automatically fill
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roaster and coffee information using a photo of a bag. It also supports "check-ins" to log coffee
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enjoyed in a cafe.
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B{rew}log ships as a single Rust binary that serves a web UI, a REST API, and a CLI client. The
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application uses SQLite as a backend, and will automatically create and migrate the database on
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start-up.
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> [!NOTE]
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> This application was built almost entirely with Claude Code. I used this project as an
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> excuse to explore the current state of the art in agentic coding tools. I've reviewed
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> much of the code, and I'm largely responsible for the rules and the layout of the repository
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> but nonetheless the vast majority of the code was written by Claude and Opus 4.6.
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## Quick Start (Demo)
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Before you start, you'll need to sign up for [Openrouter](https://openrouter.ai) and
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[Foursquare Places](https://foursquare.com/products/places/) and get API keys for both.
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Then create a `docker.env` file:
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```env
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# You'll need an API key from OpenRouter
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BREWLOG_OPENROUTER_API_KEY=sk-or-...
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# I've had good results with Gemini models, but you can try 'openrouter/free' to experiment
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BREWLOG_OPENROUTER_MODEL=google/gemini-3-flash-preview
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# FourSquare Places API key for location searching
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BREWLOG_FOURSQUARE_API_KEY=fsq3...
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```
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You can see the full list of configuration options [below](#configuration). Once your `.env` file
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is complete, start the container using the environment file
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```bash
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# Create a data directory to store the database
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mkdir data
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# Run the container
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docker run \
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--rm \
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-p 3000 \
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--env-file docker.env \
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-v $PWD/data:/data \
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ghcr.io/jnsgruk/brewlog:latest
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```
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On first start with an empty database the server prints a one-time registration URL:
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```
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No users found. Register the first user at:
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http://localhost:3000/register/abc123...
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This link expires in 1 hour.
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```
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Open that URL, choose a display name, and register a passkey. This creates an account and
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signs in automatically.
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### Install from Git
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To build and install from source, you'll need a working Rust toolchain:
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```bash
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cargo install --locked --git https://github.com/jnsgruk/brewlog.git
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```
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Then create a `.env` file containing at least your OpenRouter and Foursquare API keys, and start
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the server:
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```bash
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brewlog serve
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```
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### CLI Authentication
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To use the CLI or API for write operations, create a token via browser hand-off:
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```bash
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brewlog token create --name "my-cli-token"
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# Browser opens → authenticate with a passkey → token printed once
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export BREWLOG_URL="http://localhost:3000"
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export BREWLOG_TOKEN="<token from above>"
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# Create data from the CLI
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brewlog roaster add --name "Radical Roasters" --country "United Kingdom"
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```
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Run `brewlog --help` for the full command reference.
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## Configuration
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All settings are read from environment variables or CLI flags. A `.env` file in the working
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directory is loaded automatically via [dotenvy](https://crates.io/crates/dotenvy).
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### Server (`brewlog serve`)
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| Variable | Purpose | Default |
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| -------------------------- | ---------------------------------------------------------------------- | ----------------------- |
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| `BREWLOG_RP_ID` | WebAuthn Relying Party ID (server domain) | `localhost` |
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| `BREWLOG_RP_ORIGIN` | WebAuthn Relying Party origin (full URL) | `http://localhost:3000` |
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| `BREWLOG_DATABASE_URL` | Database connection string | `sqlite://brewlog.db` |
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| `BREWLOG_BIND_ADDRESS` | Server bind address | `127.0.0.1:3000` |
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| `BREWLOG_INSECURE_COOKIES` | Disable the `Secure` cookie flag (auto-enabled for localhost defaults) | `false` |
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| `RUST_LOG` | Log level filter | `info` |
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| `RUST_LOG_FORMAT` | Set to `json` for structured log output | — |
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### CLI Client
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| Variable | Purpose | Default |
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| --------------- | ------------------------------------- | ----------------------- |
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| `BREWLOG_URL` | Server URL | `http://localhost:3000` |
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| `BREWLOG_TOKEN` | API bearer token for write operations | — |
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### Integrations
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| Variable | Purpose | Default |
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| ---------------------------- | --------------------------------------------------------------------------- | ----------------- |
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| `BREWLOG_OPENROUTER_API_KEY` | [OpenRouter](https://openrouter.ai/) API key for AI extraction | **required** |
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| `BREWLOG_OPENROUTER_MODEL` | LLM model for AI extraction | `openrouter/free` |
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| `BREWLOG_FOURSQUARE_API_KEY` | [Foursquare](https://foursquare.com/) Places API key for nearby cafe search | **required** |
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## Contributing
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```bash
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cargo build # Build
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cargo clippy --allow-dirty --fix # Lint
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cargo fmt # Format
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cargo test # Test
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```
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See [CLAUDE.md](CLAUDE.md) for architecture, code patterns, and development conventions.
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## License
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[Apache License 2.0](LICENSE)
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