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Agate

Simple Gemini server for static files

Agate is a server for the Gemini network protocol, built with the Rust programming language. Agate has very few features, and can only serve static files. It uses async I/O, and should be quite efficient even when running on low-end hardware and serving many concurrent requests.

Learn more

Gemini project

Agate on GitHub

Agate on crates.io

Change log

1.2.1

• Reduce memory usage when serving large files.
• Update dependencies.

1.2.0

• Change text/gemini filename extension from .gemini to .gmi.
• Improve handling of requests that exceed 1KB.
• Reduce memory allocations and speed up request parsing.
• Update dependencies.

1.1.0

• Auto-detect MIME types.

1.0.1

• More accurate error codes.
• Handle scheme-less URLs.
• Throw error codes for unsupported URL types.

Installation and setup

1. Download and unpack the pre-compiled binary:

https://github.com/mbrubeck/agate/releases

Or run `cargo install agate` to install agate from crates.io.

Or download the source code and run `cargo build --release` inside the source repository, then find the binary at `target/release/agate`.

2. Generate a self-signed TLS certificate and private key. For example, if you have OpenSSL 1.1 installed, you can use a command like the following. (Replace the hostname with the address of your Gemini server.)

openssl req -x509 -newkey rsa:4096 -keyout key.rsa -out cert.pem \
    -days 3650 -nodes -subj "/CN=example.com"

3. Run the server. The command line arguments are `agate <address:port> <content_dir> <cert_file> <key_file>`. For example, to listen on the standard Gemini port (1965) on all network interfaces:

agate 0.0.0.0:1965 path/to/content/ cert.pem key.rsa

When a client requests the URL `gemini://example.com/foo/bar`, Agate will respond with the file at `path/to/content/foo/bar`. If there is a directory at that path, Agate will look for a file named `index.gmi` inside that directory.