Support for flashing opensource firmwares (esphome, tasmota, etc.)

In the past we used to be able to flash opensource firmware to our ESP8266 devices, this was amazing as it allowed us to completely remove any internet dependency.

Sadly, due to changes, the method for doing this defined at https://github.com/ct-Open-Source/tuya-convert no longer works.

Could we please get an official (warranty is definitely void if you do it) method for converting Tuya based ESP8266 devices to tasmota, esphome and others? not having an official method causes us to have to open up devices and attach to the different pins on the PCB, in some instances this means breaking the device, thus it not making sense to buy a Tuya device in the first place.

In the past I previously bought from https://www.novostella.net/ and flashed accordingly, however I have stopped doing this as I would have been stuck with the Tuya firmware. I now buy https://www.athom.tech/ which comes preflashed but the selection is more limited.

I'm not alone on this one, there is a full list of devices at https://github.com/ct-Open-Source/tuya-convert/wiki/Collaboration-document-for-PSK-Identity-02#known-affected-devices that people would love to flash with opensource firmwares.