Homebox seems to be a good way to make that happen, FWIW. I looked at it for when I was moving house and it had way more than I needed. But it does support the QR code printouts.
replyDidn't homebox have some massive drama too? Stopped development, started, forked, fork stopped and started etc?
replyAt least that was my experience when I was looking for an organisation system -and gave up =)