Technology buffs... My son and his friend are both in Calculus 2 as an asynchronous online class. They have a study hall period in high school where they go and work on the material. They have only chromebooks controlled by their school district. I would like to give them access to a web based login to a virtual machine I own where they can run maxima and use it to check answers and work through problems. What software do I need so they can access it? Apache Guacamole?