attrs>=19
booleanOperations>=0.9.0
cu2qu>=1.6.7
fontMath>=0.6.0
fonttools[lxml,ufo,unicode]>=4.10.2
glyphsLib>=5.1.10
ufo2ft>=2.14.0
ufoLib2>=0.7.1

[lxml]

[mutatormath]
MutatorMath>=2.1.2

[pathops]
skia-pathops>=0.3.0