I love this font. :)
The font isn’t recognized as monospace because the characters .notdef and uni0326 are not the same width as the rest (1228), and there are empty characters that also are of different widths listed below.
isFixedPitch also needs to be set to true.
Fixing this would allow this font to be selected in terminal applications like Kitty.
uni00AD
uni0180
uni02B0
gravecomb
uni0370
uni1E00
uni2000
minute
second
uni2070
uni20A0
uni2100
universal
filledbox
uniFB00