Wiring up the project got a little weird because of some aesthetic choices I made.

The LED strips came with two plain wires for ground and +5V and a 3-wire cable for ground, +5V, and data. Instead of wiring the power in a classic star topology (ESP32 and LED strips all connected to the barrel jack), I connected the two plain wires to the barrel jack and connected the ESP32 to power through one of the LED strips. It came out something like this: