1. - install sbopkg (http://www.sbopkg.org)
  2.  
  3. create a file /etc/sbopkg/repos.d/70-slackbuilds.repo with this content (one line)
  4.  
  5. slackbuilds master "Official master git branch from SlackBuilds.org" custom git git://slackbuilds.org/slackbuilds.git@master ""
  6.  
  7. - to have it selected as the default repository, edit the lines of /etc/sbopkg/sbopkg.conf with the variables REPO_BRANCH and REPO_NAME
  8.  
  9. REPO_BRANCH=${REPO_BRANCH:-master}
  10. REPO_NAME=${REPO_NAME:-slackbuilds}
  11.  
  12. and do a sbopkg -r (to sync).
  13.  
  14. - for temporary usage (after having created the file above in /etc/sbopkg/repos.d/)
  15.  
  16. sbopkg -V slackbuilds/master -r
  17.  
  18. sbopkg -V slackbuilds/master -i my_package_or_queue
  19.  
  20. would do.