I just noticed some typos that seem to have been introduced recently in slackpkg. for example,
from x86_64 version
a 32-bit x86 version of /etc/slackpkg/mirrors(.new) seems to have the same typos. there are a few more URIs that look odd, but I haven't checked each one to see if it's valid, I just happened to notice the main mirror was wrong.
I was also able to verify typos were there after reinstalling slackpkg-2.82.0-noarch-8.tgz in order to look through the default config.