The difficulty is getting multiple collaborators to install and pin the same packages, where everyone might be using a different platform/distro.
Example: I might commit a change that compiles perfectly fine with my version of asmath, but it conflicts with the version of asmath in the style guide of some UC Berkeley department/lab.
Example: I might commit a change that compiles perfectly fine with my version of asmath, but it conflicts with the version of asmath in the style guide of some UC Berkeley department/lab.