When they eventually deorbit the space station they’ll need a way to close and lock the door from the outside when everyone else is out.
Yes, they won’t need an atmosphere if there are no people on board but undocking the station side hatch open would cause it to vent the atmosphere and anything not tied down. This could cause the station to spin uncontrollably and potentially do damage to the return craft with the crew on board.
So there must be some sort of way to manipulate the lock from the outside on at least one of the docking ports.
This would also be necessary in an event where they needed to evacuate the station.
It’s still valid today.
Payroll fucked up and I didn’t get a deposit a few weeks back. They gave me the choice of waiting 2 weeks and having the deposit added to my next paycheck, which is totally undoable, or they would cut me a paper check that day.
I took the paper check.
I decided it would be easiest if I could use my Bank apps Mobile deposit but it only allowed me to access $500 of it that day, the rest had to wait until the next business day which was Monday.
If I would have thought about it I would have done it this way so I could have had access to the whole check before the weekend.