That is already being done right now.
You can fashion your old Mainboard into a home server. For example by using their case made in collaboration with I think CooperMaster but you can also 3D print it yourself.
The displays are just standard eDP connectors. So anyone could use that as well with a cheap board.
But have you tried Cisco Webex Teams? Or how we liked to call it "My first rails application.example.exe".