I actually referenced tamu_nerd's link below, but my approach was simpler as I used an ESP32 (more pins, so no shift register needed), and I powered the ESP32 w

I actually referenced tamu_nerd's link below, but my approach was simpler as I used an ESP32 (more pins, so no shift register needed), and I powered the ESP32 with its own USB charger (so no AC to DC converter needed). I can add something to GitHub and will reply here)