https://github.com/monero-project/bitmonero
edited to add: and you have to install berkely DB, which is a simple google to figure out.
Regarding the compiling instructions, on Windows, in the MSYS2 shell, and I'm following them EXACTLY, but I had to run the following to add mingw64 to the path variable, before running cmake, otherwise, it couldn't find it.
PATH=/mingw64/bin:$PATH
Either this is proof that I *wasn't* following the instructions EXACTLY, or the instructions need to be updated.
sorry, my bad. I only wrote the "exactly" because when I didn't read them carefully I made mistakes that I shouldn't have made... like running msys2 instead of mingw64, and then trying to run make in the source directory, etc.
u got bins?