Filing nut slots on my own: bad idea?

The term Nut comes up frequently when reading about guitar specs Every guitar Any good luthier will lower the nut slot heights as they lower the frets

1-6, I guess? Notched Feeler Gauges My first attempt was making slotting files for acoustic guitar bridges They turned out

guitar nut slot depth Fix or replace? One option for fixing a low slot is replacing the nut completely, but this isn't always ideal Replacing the original nut on a vintage guitar

guitar nut slot guitar nut Nut slots that were cut or worn too deeply, and chips out of a nut, are both common repair problems for guitars, banjos