I've got mailman3 up on Ubuntu 16.04, in a virtualenv, and (eventually) got everything working mostly okay.
My last hurdle is archiving into hyperkitty: the web interface says "no archived list yet".
The list I'm starting with is set to archive both to prototype (which I set up in the beginning, before I got hyperkitty going) and to hyperkitty. There appear to be no further boxes I can check, and mailman_hyperkitty.cfg is in place and I think correct.
I think it's nearly working because new messages get filed to ./var/archives/hyperkitty/spool, in individual *.pck files, but then these files don't go anywhere, and the archives don't appear in the web view.
It could be a problem with cronjobs, with qrunner, or maybe there's just one last hidden switch in a database somewhere that I haven't thrown. But I can't find anything.
Any hints?
TIA, Eric