Hologram - Frontend Development and Design
Wallpaper Engine - Wallpaper Engine enables you to use live wallpapers on your Windows desktop.
CleanMyMac X - Clean, protect and speed up your Mac
ScreenPlay - Open-source and cross-platform Wallpaper, Widgets and AppDrawer app.
Fossils - Find and clean out all your old unused files
Lively Wallpaper - What is it? Lively is a Free and Open-Source Software (FOSS) for animated desktop wallpapers.