This is the development environment of ATtiny10 that can be used easily just like Arduino UNO + ArduinoISP on Arduino IDE. It does not need an AVR programmer such as AVRISPmk2 etc.
It's able to run on mac0S, Windows, x86-Linux, ARM-Linux.
Require Arduino IDE 1.8.5 or later, Arduino UNO and the TPI programmer sketch “ATtiny4_5_9_10_20_40Programmer_2”.