Tesla Powerbank - A Tesla supercharger for your phone!
dnsmasq - Dnsmasq is a lightweight, easy to configure DNS forwarder and DHCP server.
Yeloha - Airbnb for solar power
BIND - BIND is by far the most widely used DNS software on the Internet.
Spotify - Map shows when two people play same song at same time
PowerDNS - PowerDNS offers open source DNS software, services, and support.