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is a way to start Umbrel from another PC, for example, after a power cut. My node has no keyboard or screen.
If you have a power loss the machine can be set to respond in the BIOS. Set it to power on after power loss. Umbrel should automatically start on boot if you set it up right.
You can ssh into this machine and if you install something like Tailscale you can access it from anywhere via the VPN.