On your Mac, go to arduino.cc, click on "Software", then under the Download Options section, click the link for the Mac version for either Intel or Apple Silicon.

The new Arduino IDE 1.6.2 features a one click install of boards and libraries and now includes two new menu items in the form of “Sketch > Include Library ...

There’s Edouard Renard, a software engineer and entrepreneur who co-founded a robotics startup in 2016 by building a complete robotic arm from scratch with Arduino, Raspberry Pi, and more.