Need Help Building a System

Hey Guys, I’m sorry if this has been asked before but I’m trying to install a new system and based on the recommendations from Reddit I’m going to go with Ubiquiti.

I’m having a hard time make sure that I’m buying all the stuff I need to make the system work.

here’s my part list so far please let me know if I’m missing anything and if you have any recommendations for me.

1. Ubiquiti UniFi NVR UNVR-INSTANT
2. 5 - Ubiquiti UniFi Video Cameras UVC-G6-DOME-B
3. Ubiquiti G4 Doorbell Pro UVC-G4 DOORBELL PRO

I’m not if this system will work together or not and not sure if I need a POE.

I’m sorry I’m kind of a noob when it comes to stuff like this so please explain it like I’m 5. lol