makeotf [Warning] Could not find default features file. Font will be built without any layout features.
addfeatures processing font <Exercise1-Regular>
WARNING: Negative internal leading: win.ascent + win.descent < unitsPerEm
Built development mode font '/private/var/folders/bh/phbdsx0562d8f7zvpbv5jy780000gn/T/tmp8w52vce1'.
