My experience was Tasmota: I won some smart plugs at a work event, and I'm not a smart home guy so I brought them home and figured out how to set them up. They

My experience was Tasmota: I won some smart plugs at a work event, and I'm not a smart home guy so I brought them home and figured out how to set them up. They required a vendor specific smartphone app. I was less than impressed. I wouldn't be able to set up any automations because this thing had to dial home to some shitty vendor cloud lock-in thing. I looked into how to load open firmware onto the smart switches, and I discovered I'd basically have to destroy the plastic shell of the device to get access to the circuit board, desolder the wifi control module and solder in a new module that was compatible with Tasmota, which is the standard open source firmware for these devices. What was much easier was to buy Sonoff S31 smart switches because they are able to be disassembled without cutting and grinding the shell away. Then I reprogrammed them using a 3d printed clip with pogo pins - flashing the Tasmota firmware so that I could do whatever I wanted with them. Easier still would be to buy smart plugs with Tasmota pre-flashed.