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...
PiPer - A DIY Minecraft computer to build gadgets
B4R - Development tool for native Arduino programs.
Helium - Helium lets you accept payments by credit card for anything you want to sell online.
PlatformIO - Next-generation IDE for IoT