Dev fonts is usually synonymous with fixed width (mono) fonts, and for good reasons. Those reasons are discussed by iA Writer in interesting detail [1]. Howev

Dev fonts is usually synonymous with fixed width (mono) fonts, and for good reasons. Those reasons are discussed by iA Writer in interesting detail [1]. However they do so as a precursor to their own duospace font, "iA Writer Duo" [2]. It's a compromise, but one that works well (for me). Basically IBM Plex but with m, M, w, and W being 50% wider than all the other characters. Sounds odd, but is very legible and usually fine depending upon the context of its use. [1] https://ia.net/topics/in-search-of-the-perfect-writing-font https://ia.net/topics/in-search-of-the-perfect-writing-font [2] https://github.com/iaolo/iA-Fonts https://github.com/iaolo/iA-Fonts