Comment by planb

Sorry for the late answer. My fingerbot just talks bluetooth and can be operated via ble locally. Just like your zigbee devices. That's because they are not "Tuya devices" they are simple hardware devices that can be remote controlled via the tuya cloud if you have a local bridge.

Tuya is just the cloud connector for those devices that communicates with the bridge (so the hardware manufacturers don't need to operate their own servers).