Setting up Collabora was not easy and I'm still not completely sure what eventually got that working, but collaborative editing of LibreOffice documents appears to be working now.
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My first test use is letting instructors decide which coffee roasting machine they want to use for my next classes. Hopefully they find that this works for them, but if it doesn't I'm prepared to take email replies and fill things in myself. Probably there will be some people who just flag me down at the event and sort it out last minute.
