Record it where you are
Cameras record on a box at the house. The phone view is extra. If the internet drops, last night is still on the disk.
The far building
A shed, stable or gate that is out of Wi-Fi range needs a real path: cable where it is short and safe, or a wireless link where it is not. The camera then needs power. PoE does both on one cable when the run is practical. A solar camera is the exception for a spot with no power, not the default for a powered shed.

A completed example
The Nyora new-home job connected Starlink to cameras that were already there. That was one property. The CCTV packages are starting points, and the visit still has to match your buildings.

