Since I would put it on the apartment porch railing or corner post, I’d probably plug a USB wall wart into the outlet out there, assuming I could com up with a safe waterproof way to do so.
I see no mention of a GPS capability for the gateway board, so I assume I’d have to add a GPS receiver myself? Not that it would move - so not a biggie - the GPS built into my LoRaGo port does not see any satellites inside my appartment, so I fix the location from Google Maps coordinates.