Mir - The purpose of Mir is to enable the development of user interfaces shells.

BuiltWith - Find out the technology behind websites

Wayland - Wayland is intended as a simpler replacement for X, easier to develop and maintain.

Wappalyzer - Wappalyzer is a technology profilers and leads data provider. Create lists of websites and contacts that use certain technologies.

DirectFB - DirectFB is a web-based platform that provides you with complete access to a software library that you can use for the acceleration of graphics, handling the input devices, and others for your Linux operating systems.

WhatRuns - Extension that helps you identify technologies used on any website at the click of a button.