Help with replication of LedMatrix from microbit to pico simulator

I am trying to replicate the led matrix simulator functionality built-in with the microbit into the Pi pico. I have a forked version of makercode here: (in github) irshad-js/pxt-maker
I have been trying this for a while but the lack of sufficient documentation is a problem.
Please offer your suggestions and helpful hints.
Also, I am willing to pay for help on this.