This program is a small server that speaks the Gemini protocol.  It's not
exactly polished or complete; it's just what I thought might serve my own
needs, and it gave me an excuse to expand my knowledge of and experience
in Rust.

The server can serve static files, files subjected to light preprocessing,
and dynamic content.

Preprocessing features:

* simple text insertion from a separately maintained key-value file
* insertion of image file size into link lines
* downgrade of image links from foo.jpg to foo-small.jpg if such exists

Dynamic applications must be compiled into the server binary and then
a point within the filesystem must be configured to link to the app.
A simple application that generates random numbers is provided.

The server supports setuid and chroot.  Once it starts and loads
certificates, it can chroot to the content directory, for it has no
further need for anything located anywhere else, and it can drop to an
unprivileged user, ideally one that lacks write permission for anywhere
in the chroot.

A rate limiter is built in.  I set the numbers somewhat low because of
course we're thinking smol here.

The name of the server is a transliteration of green in Korean (녹색),
but the first part, 녹, also means rust, which amuses me.  In English
terms, the pronunciation is approximately "nohk-sek."

For more information on Gemini, see URLs such as

gemini://geminiprotocol.net/
https://geminiprotocol.net

Sidney Cammeresi
[email protected]