Introduction to Raspberry Pi Pico guide
Getting started with Raspberry Pi Pico
Getting started with your Raspberry Pi Pico W
Raspberry Pi Pico 2 W Datasheet
Infineon CYW43439
Raspberry Pi Pico 2 W Schematic Diagram
Arduino-pico Github
Arduino-pico Docs
Programming Raspberry Pi Pico 2 and 2 W with Arduino IDE
Lessons
CircuitPython 10.0.3
This is the latest stable release of CircuitPython that will work with the Pico 2 W. Use this release if you are new to CircuitPython.