Install The Arduino IDE
Download And Install The Arduino IDE
Arduino IDE version 2.1.X is used to upload a WiFi or serial server to the Pico. It is also used to modify server source code when configuration is necessary.
To install a copy of the IDE, go to the Arduino Software Download page and select the version for your operating system. Follow the installation instructions.

A Note For Linux Users
You may need to add your login to the dialout group to upload to the Arduino.
To do so, follow these instructions.
Install the boards manager for the Raspberry Pi Pico 2W
Follow these instructions to install the board manager.