Hardware guy feels like an idiot

Ok, So I am a hardware guy. I build PCB’s for a living. I am trying to make an LED screen for my graduation hat, and I don’t know anything about the software side.

I have:
1 32x32, 5mm pitch Adafruit LED Matrix.
1 Adafruit Bonnet.
1 Raspberry pi zero w 2
the cables and whatnot,
1 5v4a power brick

I set up dietpi on the SD card, and pulled the GIT file down, but I have no idea how to look at it or what I am even looking at.
Can someone give me a crash course to get this thing running?