PiP for Mac - Always on top window preview similar to the popular windows only OnTopReplica
Arduino IDE - Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware...
Pennywise - Cross-platform application to open any website or media in a floating window
B4R - Development tool for native Arduino programs.
Afloat - Create beautiful invoices in 3 clicks, without mistakes
PlatformIO - Next-generation IDE for IoT