matter
Cooling the rooms my central air can't keep up with
Comfort Masters quoted me $24,000 to fix the way my house cools. I passed for now, kept my central air, and added three Midea portable units, around $400 each, to pick up the slack in the rooms it can't keep cold. Home Assistant runs them: a fan-speed deadband, a 20-amp breaker interlock, on-demand network-closet cooling, and a Mr. Freeze button for movie nights.
IKEA KAJPLATS: Matter was a mess, so mine run Zigbee
IKEA replaced the TRÅDFRI line with KAJPLATS, and the new bulbs ship with Matter over Thread. I gave that a real shot and it was a mess. I ended up adding mine to my existing Zigbee2MQTT mesh instead, using the hidden 12-power-cycle sequence that switches the bulb into Zigbee pairing mode.