[mgerb]

I haven’t previously heard about the ratgdo, but I recently did this myself with an ESP8266, relay, garage door remote, and Tasmota for the firmware. It works flawlessly with MQTT/Homeassistant. The individual components (excluding the opener) are < $10.

[onedognight]

You are missing the beauty of the ratdgo. The ratdgo has open source firmware that implements the encrypted serial communications needed to control and get status (open/opening/closed/closing) from Chamberlain / Liftmaster garage doors (without needing the myQ hub).