How to control home lighting via the internet with Arduino Mega + Ethernet Shield?

Hello, one day an idea popped into my head: controlling the lighting in my home using my phone:D I used the following for this: Arduino Mega , Arduino Ethernet Shield , a memory card and a bit of spare time. Communication takes place via the HTML protocol, so we can control the lighting using anything that can connect to the internet.

Instructions for posting photos and images on the forum https://www.elektroda.pl/rtvforum/topic2053101.html [retrofood]