if you're looking for the standalone scripts, that don't use quakeconfig.sh, click here.
The scripts/mappools/factories/configs here are currently live on The Purgery servers hosted in Australia. (they're downloaded every day at 8:00am GMT+10, so if something changes here on GitHub, it'll be live on the servers within 24 hours.)
To use these scripts, you'll need to clone this repository and point the quakeconfig.sh script to it, or simply remove quakeconfig.sh from the quakeupdate.sh script and manually edit the files yourself.
The downside to doing that, is not having a central location to pull the new scripts/updated files, and having it replicate across more than one server. Also, Steam will over-write some files occasionally, it depends on whether a developer has modified any file, if so, it'll be overwritten. That doesn't happen if quakeconfig.sh is being used.