This is a repository of problem libraries developed at Portland Community College. The most important copy of this repo lives at webwork.pcc.edu, in opt/webwork/libraries/PCC/. Subfolders (like BasicMath, BasicAlgebra, etc.) are symlinked from typical courses' templates folders. For problem development, each person working on problem development has their own LibDev course, for example LibDev-jordan. These courses do *not* have symlinks to BasicMath, etc. Instead, they have copies of the entire repo, stored in templates/local/PCC/. Developers work on problems from the web side of their LibDev course. As needed, development is committed, and pushed to the repo at opt/webwork/libraries/PCC/, from which it is pushed back down to all other LibDev courses. Lastly, the subfolders in opt/webwork/libraries/PCC/ are periodically *copied* (not using git in any way) into webwork-open-problem-library/Contrib/PCC/, so that development can be committed to that repo and shared with the world.