Noto offers region-specific subsets of Noto Sans and Noto Serif for the supported regions (HK, JP, KR, SC, TC). However, those subsets are not available for NotoSansMono (see
https://www.google.com/get/noto/help/cjk/).
Can anyone suggest a way to distill those subsets? I have experimented with the FontTools
pyftsubset tool and also the Adam Twardoch
pyftfeatfreeze tool (
https://github.com/twardoch/fonttools-utils) but neither seems to perform this fuction ...
...
Any suggestions on how this might be accomplished?