The Hangar of Port Nowhere is pretty big and shares space with the second deck, same as the Bazaar (this makes it easier for visitors to move goods on and off ships). It's well equipped to do most repairs for the station and most visiting ships, and needs to be spacious enough to accomodate for a number of visiting ships. Though it's still a tight fit, which makes it hard for sudden departures.
Incoming ships get hailed by port security and they get guided into the cramped hangar to avoid any bumps or bruises with other ships. Visitors are all met by port-master Aquaria, who brief visitors on the port's rules (which aren't much. Don't kill anyone, don't harm the port, don't harm the port's workers), and provides the offer of additional security. For the low sum of 100 credits. Otherwise, the port writes off responsibility of whatever might happen with your ship.
-----------
The Hangar has a workbench for modding, crafting, and repairs.
Ship-owners may pay one-time fee upon arrival of 100 credits for security (meaning that the port will take responsibility in the case of any damage done to your ship while in port, or break in to your ship).
This location has no limit on the number of threads in the same timeslot, given that they are in different locations/ships.