Thanks for your reply and compliment.
It will always require a network connection to receive new updates to turn on the LED. and most other features (cointickers, apps, trends, streams) require a Internet connection as well.
But you can load the webinterface without connection to the internet, because this page is running on the Pi, instead of a external (internet) server.
But maybe this is not the answer to your question?
One of the goals is to make it as simple as possible to have one at home.