RetroArch - RetroArch is a frontend for emulators, game engines and media players.
RingCentral - RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies
Lutris - Lutris is an open source gaming platform for GNU/Linux.
Dialpad - Switch is a cloud-based phone system built for Google Apps users.
mGBA - mGBA is an open source emulator of the Game Boy Advance. The goals are speed and accuracy.
Aircall - Aircall is a call center software of a new generation designed for fast growing companies. Setup instantly and integrates to your CRMs