You need scrcpy and adb
https://github.com/Genymobile/scrcpy
You need to enable ADB debugging (USB and WiFi) Depending on your phone this can have different naming conventions.
I set it up first normally with scrcpy via USB for testing, and then I use the script above. Be sure to replace <PHONE_IP> with your usual phone's local home IP (e.g. adb connect 192.168.1.120)
You can place the script in your path so you can run it globally in your terminal.
Script only tested on Ubuntu.