These are the slackbuilds I maintain. The git repo is temporarily down, but the tarballs are up to date. Some binary packages are available (I use SBo suffix because of laziness, sue me).
Version 38.5.0
Slackbuild script: icecat.tar.gz
Version 0.1 beta 2
Slackbuild script: compton.tar.gz
Version 3.2.4 (revised)
Slackbuild script: R.tar.gz