I built a "Kitchen Dashboard" last year: https://gavinr.com/2016/01/10/raspberry-pi-kitchen-dashboard...
And of course you have to build a RetroPie: https://retropie.org.uk/
Other things on Pi in my house: OpenVPN server (http://www.pivpn.io/) and Node-RED (https://nodered.org/) for collecting temperature data and pushing to Power BI.
Other things on Pi in my house: OpenVPN server (http://www.pivpn.io/) and Node-RED (https://nodered.org/) for collecting temperature data and pushing to Power BI.