Agate, a Gemini server written in Rust

Blizanci, a Gemini server writen in Erlang

@derhuerst/gemini, Gemini protocol server & client library written in JavaScript

GeGoBi, a Gemini server for Gemini-Gopher bi-hosting

Gemini, applications and libraries written in Go

Geminid, a Gemini server written in C

Geminim, a Gemini server written in Nim

Gemlog Booster, Titan server written in Python

Gemserve, a Gemini server written in Rust

Germinal, a Gemini server written in Common Lisp

GLV-1.12556, a Gemini server (in fact, the first!) written in Lua

GmCapsule, a Gemini/Tiatn server in Python

GmGitView, Git Repository Viewer for Gemini

GNC, a Gemini server written in Fortran

A Gemini server written in Go

Jetforce, a Gemini server written in Python

Lupa Pona, a single-directory server written in Perl

Marami, a Gemini server written in Prolog

MoonGem, a Gemini server written in C with inline Lua scripting

Net-Gemini, a Gemini server written in Go

Pollux, a Gemini server written in Rust

rc-gemd, a Gemini server for 9front

Space Age, a Gemini server written in Clojure

SpaceBeans, a Gemini server written in Scala

The Unsinkable Molly Brown, a Gemini server written in Go

Dʒɛmɪni, a Gemini server written in Racket.

Ig Ignition, a Gemini client in Python

twind, a static file server in C, with virtual hosting

Wikis

Phoebe, written in Perl 5, editing via Titan or the web

twinwiki, a CGI plugin written in Rust, editing via sed commands

Platform as a Service (PaaS)

gemini://glv.one

Feed aggregators

Moku Pona is a feed aggregator written in Perl, supporting change detection and feeds for Gopher, Gemini and the web