First Zigbee device randomly working

Seriously, how do they have to make it better findable than this

Nedis what? Zigbee or wifi. When wifi, use either the Tuya Smart app or Smartlife app on your phone.
Tuya cloud app can control almost any Tuya wifi device, if not direct, then by tap-to-run or Raw commands.
It’s all in the first post of TC app topic: