Monaspace is a family of monospaced fonts with some interesting features. The fonts are sized to be interchangeable, and they have something called “texture healing.” With monospaced fonts, wide (w, m) and narrow (i,l) letters are the same width, but texture healing widens the wide letters when they’re adjacent to a narrow letter while maintaining equal spacing.

I’m not sure I actually love any of these enough to switch from my usual fonts, but the tech behind them is super interesting.