I have been working on a little gemini client and server framework in Rust I'm calling Maj[0]. One of the big parts of writing this has been to make a fancy curses frontend using a Rust package called cursive. I believe I have made something that could be considered somewhat stable called majc[1]. I have created an installable .deb version of majc[2] and am hosting it on a machine of mine. Please do let me know how it works out for you. It's a bit rough around the edges at the moment, but software that was hacked into existence over the span of a weekend tends to be rough like that.
I am working more on the server framework for Maj, and currently pass all the server torture tests[3] that I care to support. I'm still trying to get client certificate authentication working with rustls, but the async-tls adaptor doesn't easily expose the certficate chain of TLS clients.
Anyways, thanks much for being around and I hope I can give back as much as I have been given.
