Here’s the article: https://arstechnica.com/gadgets/2026/09/i-spent-4000-on-a-robot-dog-from-china/
This is the best part:
As I entered my own neighborhood, I glanced at two indicators in the corner of my phone screen. One showed that the robot’s battery was at 5 percent—dangerously close to empty. The other showed the internal temperature was 84°C (183°F).
We were within sight of my front door when the robot suddenly collapsed. I’m not sure if it ran out of power or overheated, but either way it didn’t shut down gracefully—it rolled onto its back with its legs in the air.
Because of Newton's first rule. Similarly, an engine won’t start by itself, you have to turn it first. So just push the truck forward to give it momentum, and the magnet will continue pulling it forward