121 Led strip of 12V 1.5Amps individually control(ON,OFF,Dim) through App

I am looking for a hardware specialist who can help me design a circuit which can individual control i.e., turn ON, OFF or Dim a LED strip amongst 200 others through an APP.

We have done this before check the below youtube video:
https://youtu.be/gr8LC8yREyo?si=sQLGoITx6FEHohQB

But now we want something robust, we are Okay to do it from scratch.

Person if from Pune Maharashtra shall be very much suitable.