I do not know about mediafire, can you elaborate on the differences vs github?
Mediafire is an example, sites like that are for sharing any type of files including .exe files such as yours while github is first and foremost a "code" sharing platform even though it has no restrictions on file types being uploaded.
You could just say uploading .exe to GitHub repository (instead of Mediafire or similar website) could give few people
false sense of security (since few people treat GitHub as safe place to download software directly from the developer/source code).
Basically, it's in our interest to open-source the 64-bit random pool code so that Linux users can run it (you won't believe how many Linux users got nvidia cards attached despite the poor graphics support). I think the sensitive parts are limited to a few lines of code and variables, I'll see if we can just feed that information through a makefile and #define constants to hide those parts.
Alternatively you could provide AppImage file which should work for most linux distro.
P.S. Nvidia GPU popular among Linux users becuase it offer better price/performance and exclusive feature (such as CUDA which frequently used on heavy computer science software).