Love your other projects too by the way! Especially the serial terminal. At our lab we needed another workstation and the IT-Department took ages to give us one

Love your other projects too by the way! Especially the serial terminal. At our lab we needed another workstation and the IT-Department took ages to give us one. So we modded an old surveillance CRT into a Terminal with your circuit and connected it to the existing PC. Now two people can work with one Workstation. It is still used to this day (albeit more because of the cool factor).