Zenity - Zenity is a tool that allows you to display GTK dialog boxes in commandline and shell scripts.
X-Mouse Button Control - XMouse Button Control (XMBC) allows you to create application and window specific profiles.
Glade - Glade is a RAD tool to enable quick & easy development of user interfaces for the GTK+ toolkit...
Logitech G Hub - Logitech G HUB is new software to help you get the most out of your gear. Quickly personalize your gear per game.
Yad - Yad (yet another dialog) is a fork of Zenity with many improvements, such as custom buttons...
OpenRGB - OpenRGB is an all-in-one network-based software development kit that allows you to use third-party software to control all of your RGB.