I’m not sure I fully understand due to my lack of knowledge on the realm of hacking, but if I do, you’re refering to the file system and how it is potentially ‘fake’ (I can’t think of a better way of putting it right now). If this is the case, the file system does not have root access (for obvious security reasons), and is separated from. Basically, Replit uses Nix, and has preinstalled millions of packages so you can easily use them in your Repls, and that’s the cache of packages for Python that you’ve found. This article by Ryan Mulligan from Replit might clarify what you’re asking about.