I would suggest you even a better solution for your students and also can be a lab work for them: Umbrel nodes and Embassy nodes have already integrated own Discord decentralized server - Matrix with its Elements client. All encrypted and P2P, federated and decentralized. Here you have a video about So in this way other node operators, advanced bitcoin users can drop in into your Room and participate. Also in this way you encourage each student to have its own node and use it as tgheir own Matrix server and can participate into that Room as federated user. Don't trust too much Discord. They already closed so many rooms, even about Bitcoin and all your work will be done. Matrix have also an option to import a Discord room.