I would like to share the project I wrote, it's a basic Wifi Manager written in Lua for NodeMCU/ESP8266 that runs Lua firmware (obviously...
It's simpler than Wifi Manager from tzapu but it does the work.
The code is hosted at https://github.com/gfnord/lua_wifimanager
Since I'm not a very skilled programmer, all suggestions and critics are very welcome.