The esp8266 forum has been restructered
The LUA implementation is here:
I have tried to use the LUA webserver with an ATtiny85.
The t85 does all the sensor reading and sends it to the esp8266 via seriel.
It works very well and very covenient because the t85 can run on the same 3.3V as the esp8266.
There is still a problem with the RAM usage but working on it
@Paulware
Which firmware do you use on the esp8266 ?