Wayland - Wayland is intended as a simpler replacement for X, easier to develop and maintain.
Documentator - We make documenting your product a piece of cake 📘
Y Window System - Y Window System is a platform that allows you to improve the speed, working, and efficiency of the application in your operating system and helps you to increase the responsiveness of applications similar to any locally based app.
UnMarkDocs - Unleash the Power of Markdown to Write Better Product Documentation
XQuartz - The XQuartz project is an open-source effort to develop a version of the X.
Archbee.io - Archbee is a developer-focused product docs tool for your team. Build beautiful product documentation sites or internal wikis/knowledge bases to get your team and product knowledge in one place.