"Though I'd prefer an open source solution that they could host themselves" This is not the only time that this has come up, and somehow I doubt most educators

"Though I'd prefer an open source solution that they could host themselves" This is not the only time that this has come up, and somehow I doubt most educators share HN's open-source zeal - most of them I've worked with want to GET TO WORK, not spend hours doodling with "self-hosted" software.