The article links to this project <https://github.com/EkType/Nithya-Ranjana/blob/main/README.md> to
create a font for Ranjana Lipi. In the absence of a script-specific
Unicode encoding, they let you use either the Devanagari or Newa code
blocks.
While you’re at the EkType area on GitHub, their “Honk” font also
looks interesting. ;)