GetStream.io - APIs for the development of scalable newsfeeds and chat applications.
Wallpaper Engine - Wallpaper Engine enables you to use live wallpapers on your Windows desktop.
Geneva - An all-in-one communication app for groups & communities
Lively Wallpaper - What is it? Lively is a Free and Open-Source Software (FOSS) for animated desktop wallpapers.
müteme - A free Zoom mute button for Mac
ScreenPlay - Open-source and cross-platform Wallpaper, Widgets and AppDrawer app.