Microtype is different from " use free fonts." Microtype allows for: "character protrusion and font expansion, furthermore the adjustment of interword sp

Microtype is different from " use free fonts." Microtype allows for: "character protrusion and font expansion, furthermore the adjustment of interword spacing and additional kerning, as well as hyphenatable letterspacing (tracking) and the possibility to disable all or selected ligatures." I will follow up on github. Are you planning to have the book printed? The recto/verso margins can be distracting.