Pixhawk 4 and Tekko32F3

hi guys, im looking at using the pixhawk system in a completely custom built and designed drone and was looking at this 4 in 1 esc as it has pretty much all the features i need including high current capacity.

the only thing is, i am new to drone technology and working out how things go together and i cant see how i can integrate this esc into the pixhawk 4 control unit.

can anyone offer some insight?

many thanks in advance.