How to get started with iOT

My company makes a computer controlled robotic arm that we sell to grade schools. Now with Covid upon us, kids can’t get their hands on our equipment.
How could I go about making it accessible thru a web browser? What are the main issues I would have to contend with?
We already have a Xojo app that can access it on Mac and PC thru the serial port.
IOT seems to be a big thing nowadays, so what resources can you point me to?

I have always gotten great help here in the forum. Looking forward to your replies.