A really really simple TCP server with ESP8266.
A big thanks to cnlohr and his post!
After installing the ESP8266 SDK, compile it with bash gen_misc.sh and load it with your favourite tool.
I use esptool.py with esptool.py write_flash 0x00000 eagle.flash.bin 0x40000 eagle.irom0text.bin.
This gen_misc.sh is preconfigured to be used with the Olimex board, which uses 2MB flash. Modify it to enable interactivity.