Websocket server and light http server - nodesign/libstk GitHub Wiki
wget https://github.com/joewalnes/websocketd/releases/download/v0.2.11/websocketd-0.2.11-linux_arm.zip
apt-get install unzip
unzip websocketd-0.2.11-linux_arm.zip -d .
apt-get install apt-transport-https lighttpd