aka "fitting".

I wrote a blog on why Soviet-style engineering is bad https://blog.est.im/2026/stderr-04

But many ppl will refuse a purchasing because the product breaks randomly

Being created by a human doesn't imbue any specific amount of reliability to a piece of software.

smart phones took over the world, social networks happened.

Turns out they are the best sterializer human ever invented.

I just wrote a blog https://blog.est.im/2026/stdin-09

NVIDIA Nemotron-Personas-USA — 1 million synthetic Americans whose demographics match real US census distributions

https://huggingface.co/datasets/nvidia/Nemotron-Personas-USA

edit: OP's fully native C++ version using Pystd

    import mmap, codecs

    from collections import Counter

    def word_count(filepath):

        freq = Counter()
    
        decode = codecs.getincrementaldecoder('utf-8')().decode
    
        with open(filepath, 'rb') as f, mmap.mmap(f.fileno(), 0, access=mmap.ACCESS_READ) as mm:
        
                for chunk in iter(lambda: mm.read(65536), b''):
            
                        freq.update(decode(chunk).split())
            
                    freq.update(decode(b'', final=True).split())
        
                return freq

That's two neat tricks that I'm definitely adding to my bag of python trickery.