Jufe384 Upd [portable] Link
Do not interrupt the power supply during the update process. A brownout during the bootloader rewrite will necessitate a JTAG recovery.
If you are an Alexa‑first household and don’t need Thread, the Echo Plus remains a slightly cheaper option. For Apple‑centric users, the HomePod mini is more integrated, but it lacks Zigbee support entirely. jufe384 upd