I just setup vaultwarden a few days ago for a small group, it’s very simple.

Not a teacher, but my mother is a retired professor.

It would absolutely work on a large percentage of students, especially the type that are so lazy they are plugging their assignment into an ai. She retired in 22 and had students that had never used a desktop computer with a mouse and keyboard, only phones, tablets, and ChromeOS laptops. Text formatting, beyond the very basics of bold and colors, were a new concept for them.