Solomani Navy: Twilight Naval Depot and home of the Solomani Navy's Strategic Reserve
Twilight 0911 is two parsecs rimwards from Home, and off any known trade routes. It's function isn't secret, but any unauthorized vessel will be shot at sight, if it doesn't surrender on initial communications contact.
The Strategic Reserve doesn't have mothballed ships, and divides it's assets equally between Twilight and Home, the primary naval base there being Wolfe's Lair, ensuring that it's FleetRons are ready to be deployed when ordered by either the Grand Admiral, or by a directive from the Secretary General, without a week or so delay to relay the order to Twilight.
Twilight has the only shipyard that specializes in manufacturing Beijing class deep strike cruisers, and has two slips that launch one every one hundred ten weeks each, just over two years construction time.
It also manufactures the Shinano class, an annual batch of six every one hundred thirty two weeks, or slightly over two and a half years, or fifteen reserved slips.