D1 Mini and CT clamp with micro PC with Home Assistant - where to begin

I have no idea where to begin. Literally first steps.

I can connect to the instance of Home Assistant on the micro PC with a browser from a laptop on the same network. After that, no idea.

Install the esphome addon. Settings/addon/addon store.

https://www.youtube.com/results?search_query=ct+clamp+home+assistant

Do make sure you know what you are doing if you apply the clamps on cables that are under electric current, for safety reasons. Otherwise consult a professional.