I have tailscale running on my robot vacuum. It's my own little autonomous mesh vpn node that lets me connect back to my home network when I'm on the go.
You can root certain models of robot vacuums and then ssh into them. Most run some variant of linux. Then just install tailscale. There are a few blogs out there of people who have done it[0][1].
It's taking a cloud-based product, de-clouding it, and then connecting it to your own private 'cloud'. Pretty cool all things told.
