I have one setup for logging temperature and heating&#x2F;cooling usage from a Proliphix thermostat in my house.  It also acts as a firewall to protect the thermostat from the rest of my home network.<p>I&#x27;ve another one for several years as an SSH jump host that runs Screen, Ansible.  Rock solid.<p>Now that the Ethernet port and WiFi are on separate buses, I&#x27;m looking to test RPi3 as a home firewall.<p>A project that&#x27;s been in my backlog is to setup a stratum 1 NTP server.  This is pretty easy now with much better GPS modules available as compared to what was available 4 years ago.