There are many open-source, community-developed software projects for Raspberry Pi, yet very few people know about them. Pi-Apps aims to improve that, functioning as a software catalog and standardizing installation.
Please note that Pi-Apps is very new and is a work in progress. It has not been officially released yet, and is not ready for regular users. That being said, if you are brave enough to try it, go ahead! Also, please don't advertize Pi-Apps on public forums. It's not ready for prime time, may contain serious bugs, and Botspot has chosen to not release it yet.
git clone https://github.com/Botspot/pi-apps
/home/pi/pi-apps/install
The install script ensures YAD is installed and creates a menu button. Nothing is modified outside your home directory.
Menu -> Accessories -> Pi Apps, or type ./pi-apps/gui.