You're probably running what's currently called, I think, UniFi Network Server (at one point it was UniFi Controller?).

That lets you configure networking devices but it isn't the "full" Ubiquiti ecosystem (Identity, Site Manager/SD-WAN/Teleport).

Basically before you could run one "app" (the network management one) locally, but Unifi ship a grid of cloud "apps" that you see when you log into unifi.ui.com .

Now they're shipping the thing that hosts the grid itself (enabling multi-site stuff like SD-WAN and the firmware update server), some more of the apps (Identity) and presumably they'll roll out more apps in the future.

1. This is an official Docker image/container from Ubiquiti themselves - no more relying on LinuxServer.io/jacobalberty, etc...

2. With the "UniFI OS" branding, the door is open to the possibility of being able to run Talk, Protect, Access, etc... on your own hardware in the future.