Due to reported issues with password length and strength in Calamares, the libquality option has been disabled; as of now (20260218), Calamares accepts even 1-character passwords. To take advantage of this, update the calamares package in Sparky 8 or 9 in a live session, before running Calamares.
@pavoo
Returning to attempt a Sparky install after giving up on this password thing in Feb 2020 I can't believe this is still an issue six years later.
The solution I used this time was from @verndog's post from that year deleting the users.conf file,
"EDIT: The solution for me was to remove "users:conf" file. I tried edit the libpwquality section, and could never get it to work."
Tony.