That said, programming fonts are a particular niche of interest, because first you want your ambiguous glyphs to be easily distinguishable. O vs 0 vs o, l vs I

That said, programming fonts are a particular niche of interest, because first you want your ambiguous glyphs to be easily distinguishable. O vs 0 vs o, l vs I vs 1 vs i, and secondly you want the overall feel to be pleasing to you. Other considerations are how does the font render g (is there a loop at the bottom, or just a tail) or a (does it have a "tail" at the top or is more like an o with an extra leg?). People can get really worked up about these details, just like a coding style guide: if it differs from what you're expecting, it's distracting, but you get used to it after a few days/weeks. Since last I went on this journey, I see that this wonderful website for comparing programming fonts popped up: https://www.programmingfonts.org https://www.programmingfonts.org