It would need to be similar to the current mail entry system where USPS has a key that opens all of them. For the new weird contractor system another option wou

It would need to be similar to the current mail entry system where USPS has a key that opens all of them. For the new weird contractor system another option would be to have a scanner on the locker and open when it sees the barcode of a package you're expecting. [0] Alternatively most shopping places already allow you to enter delivery instructions where you enter gate codes for unattended gated communities you could just provide them the key code there. If neither of those would work for reasonably sized packages (ie no TVs) a larger box could have an airlock section like the clothing donation boxes where packages can't be retrieved because they're behind a second door. Really though I think the actual solution is a combination of more prevalent generic lock boxes, like where Amazon or UPS setup drop locations but made so any company can use them, or partnering with grocery stores or gas stations to hold packages. [0] Either with you entering it in or going through things like UPS MyChoice and the Fedex and USPS equivalents.