Prtg Network Monitor Digiboy [better]
A tip from the PRTG community: Use the sensor on the DigiBoy itself to monitor its own CPU, disk, and memory. This lets you know if your monitor needs monitoring.
wget https://downloads.paessler.com/prtg/prtg_remote_probe_linux_arm64.tar.gz tar -xzf prtg_remote_probe_linux_arm64.tar.gz cd prtg_probe prtg network monitor digiboy