On the relay path, the desktop app is the runtime, the client that brings up the tunnel between the field drone and your viewers. Native builds for macOS, Windows, and Linux. Every link points at the current stable build.
Detected your system, recommended below.
Flying a DJI enterprise drone? You do not need a download. Sign in on the controller and the aircraft binds to your organization in the cloud: live video, telemetry, and control in the browser. Streaming RTMP from a DJI drone? Also no download; the drone pushes straight to Nebli. The desktop app is for everything else: other airframes, field cameras, and sites that need the relay tunnel.
Not sure whether your DJI drone works? Check your model and controller.
chmod +x Hover-x86_64.AppImage if your file manager needs itSign in with your Nebli account, pair a drone, and the tunnel comes up. Pricing and plan limits are on the pricing page; setup walkthroughs are in the docs.