I clapped twice. The lights went off.
No voice command. No phone. No hub. Just a Galaxy Watch 4 on my wrist, an ML model running on its processor, and a UDP (User Datagram Protocol) packet fired across the local network.
This is a companion discussion topic for the original entry at https://www.edgeimpulse.com/blog/gesture-controlled-smart-lights-with-a-galaxy-watch-and-edge-impulse