# pex


12/05/2019, 2:51 AM
> ...the realization that Pex currently has two distinct caches for wheels. One for the buildtime resolve of the wheel and one for the runtime extraction of the wheel from zipped pex files. By unifying these caches, we save disk space on machines where we both build and run wheels. this was the kind of analysis and re-understanding of the problem we're trying to solve i was hoping to get from your involvement! thank you again! i'm now at least 1 full file into the PR, spurred by your recent push!