This is a Mongoose "Hello, world" that can be compiled under ESP8266 RTOS SDK.
It sets up an AP (SSID `Mongoose`) and serves a "hello world" page on http://192.168.4.1/
Most of the the boilerplate comes from [project_template](https://github.com/espressif/ESP8266_RTOS_SDK/tree/master/examples/project_template) (@ [3ca6af5](https://github.com/espressif/ESP8266_RTOS_SDK/tree/3ca6af5da68678d809b34c7cd98bee71e0235039/examples/project_template)) with minimal changes.
To build with no changes to the SDK, you will need a module with 1MB (8Mb) flash or more.