Hubs (including relays and dojos) require a proprietary server for prex cards to appear, and, if multiple players are on the same server, for them to see and interact with each other (blessings, trading). This guide will explain how to set up a source-available reimplementation.
hubExecutable to have SpaceNinjaServer run it as a child process.%appdata%\Microsoft\Windows\Start Menu\Programs\Startup to have it start when you log in to Windows.