All credit goes to Assimp. This is simply a stripped down version of their original source code
with some minor patches to make it compile properly. The changes are listed below:

* `code/CMakeLists.txt` line 1053, `RT` is intentionally not found because now Archlinux doesn't seem to be shipping it properly?
* `ZipArchiveIOSystem.cpp` is patched thanks to brechtsander's patch. This issue is tracked at [#4334](https://github.com/assimp/assimp/issues/4334).