I did try mmap, both with the plaintext binary search, and with the binary file (you can find a note about it in the HTML source :) I ended up not mentioning

I did try mmap, both with the plaintext binary search, and with the binary file (you can find a note about it in the HTML source :) I ended up not mentioning it because for some reason, it was ~twice as slow on my mac... I'm now curious to try it on a decent Linux machine.