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recently I'm wondering why program installed on linux systems are just archives extracted inside system paths and not just archives mounted as read-only entry-points.

As far as I understood, Android apk files are archives that are live-mounted when the app is opened, so why there's nothing similar under other linux-based systems like desktop or server OSs?

Recently I've attended a Linux Kernel Programming course and I thought that to implement a module that automatically creates mount points with given archives could be a cool idea, but I'm guessing if anyone thought it before and why this idea could have been discarded. Personally, I did not find anything useful.

Has anyone have some information or hint on this topic?

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fuse-zip already implements this, as a FUSE module, for ZIP files, and archivemount exists for tarballs (or perhaps even anything supported by libarchive). Both of these even implement writes.

There’s nothing similar in the kernel itself, as far as I’m aware; there are related pieces of code in the kernel, e.g. for decompression, so implementing these in the kernel might not be all that complicated — but there would be some gotchas to take care of around keeping access to the archive file itself, and avoiding races. FUSE takes care of that for you.

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