Create a master configuration for building from many forks
Allow people to add their forks to the master to detect changes.
This master would have a single slave and it's only duty would be to run user's builds before they can be merged into the actual vabs repo. The master would listen to several git sources.
Nothing will be uploaded anywhere, it would just be a dry run to see what effects the changes would have on the actual bot.
SLAVE: The slave should still have an update system like the normal slaves do, but will not upload anything.