Some of the xxhash implementations actually look pretty simple, no? The official repo does not, I agree. I don't know which version of the algorithm you used, but these implementations:
* <https://create.stephan-brumme.com/xxhash/> * <https://github.com/ekpyron/xxhashct/blob/master/xxh64.hpp> * <https://github.com/chys87/constexpr-xxh3> * <https://github.com/clownpriest/xxhash/blob/master/src/xxhash.zig> all look like something one could implement as a quick project. Not sure what their performance looks like obviously. The zig one appears to be pretty fast, but I couldn't quickly figure out which algorithm it actually implements and compares to in its README.
