Sorry for the late reply. If you want to run commands from a website simply make Nancy return a webpage like
You also need to define the URL that does something. Look at
If you finde the code in the webserver example confusing then make your own Nancy example shown in this totorial
If you find the speed of Nancy a problem then use this
code as a starting point (This is code for the controller for the LEGO truck I posted in a previous post).
Please write if you have questions