What it is
ZeroTier creates software-defined private networks between authorised devices. A network controller manages membership and network configuration, while the endpoints use ZeroTier One to join the overlay.
The supplied screenshot is specifically the ztncui “Key Networks” controller interface. Its navigation and “Networks on this controller” table are controller-management elements, so the screenshot belongs to ZeroTier rather than to the separate Tailscale exit-node project.
Screenshot evidence
How I used it
I used the controller to create and organise multiple private overlay networks, review network membership and keep separate lab or remote-access environments distinct. Sensitive network names and IDs are intentionally hidden in the public evidence.
Why it matters
This demonstrates experience with an additional overlay-networking model alongside Tailscale and conventional WireGuard: controller-managed membership, private addressing and remote connectivity without treating every VPN-style tool as the same product.