BambooHR - Personalized HR software for SMBs
Geyser - A bridge/proxy allowing you to connect to Minecraft: Java Edition servers with Minecraft: Bedrock edition.
CharlieHR - Charlie automates many of the administrative headaches you'll experience when scaling a company, so you can spend less time doing admin and more time doing the things you love.
PaperMC - Paper is a fork of the Spigot server implementation (which is itself a fork of CraftBukkit). Paper strives to bring improved performance, more features, and more APIs for developers to build awesome plugins with.
Namely - Namely is the end-to-end HR, payroll, and benefits platform for growing companies.
Cuberite - A custom Minecraft compatible game server written in C++.