tuya-cloudcutter VS libretiny-esphome

If you have some Pthyon experience, you should be able to use something like TinyTuya to pull DP data from your Tuya devices. Alternatively, you can use Tuya-Cloudcutter to flash a local-only firmware like ESPHome/LibreTiny or OpenBeken which have much easier integration options (local open API, HTTP, MQTT, etc).

You can flash the bk7231n directly with ESPHome using LibreTiny-ESPHome. You can even do it without soldering using Tuya Cloudcutter if you have a Raspberry Pi handy.

OpenBeken has their own list for BK7231N, BK7231T, XR809, BL602, T34, W800/W801, W600/W601 based devices. Tuya-Cloudcutter has a similar list for such devices as well.

Tuya devices, and the Tuya-based Monster, Greeni, etc stuff can be connected to HA using the Tuya Integration, or converted to local-only using Tuya Cloudcutter and connected to HA using Local Tuya, or even flashed with Tasmota, ESPHome/Libre Tiny, or OpenBeken.

One option to get control of your tuya devices is tuya cloud cutter then replace the firmware https://github.com/tuya-cloudcutter/tuya-cloudcutter

For many vulnerable/compatible device, you can use CloudCutter to OTA flash as well.

Absolutely! https://github.com/tuya-cloudcutter/tuya-cloudcutter

You can set them up locally like RFD recommended: https://github.com/tuya-cloudcutter/tuya-cloudcutter/blob/main/INSTRUCTIONS.md

Lastly, there is a https://github.com/tuya-cloudcutter/tuya-cloudcutter application that can let you flash ota for devices that have been done already.

Use tuya-cloudcutter or direct flash.

You can flash the bk7231n directly with ESPHome using LibreTiny-ESPHome. You can even do it without soldering using Tuya Cloudcutter if you have a Raspberry Pi handy.