ARM architecture

Choose ARM64 or ARMv7 for Raspberry Pi

The correct build depends on the installed operating system, not only on the Raspberry Pi model.

Check the system

Run uname -m in a terminal.

aarch64 usually means ARM64.
armv7l means ARMv7.

Prefer headless on a server

For a Pi running as a small server or near a NAS, the headless client is usually the simpler choice.

After downloading

Copy the binary to a suitable directory.
Make it executable with chmod +x.
Start it once and pair it with the portal.
Install it as a service only after a successful manual run.