In the Home app, the current temperature of a Tuya device is being reported (correctly, according to my preferences) in degrees Fahrenheit. However, the set temperature is reporting in degrees Celsius.
This is the issue tracker for tuyapi, an unofficial nodejs library for handling low level communication with Tuya devices over LAN. You are probably looking for https://github.com/tuya/tuya-homebridge
In the Home app, the current temperature of a Tuya device is being reported (correctly, according to my preferences) in degrees Fahrenheit. However, the set temperature is reporting in degrees Celsius.