I may have developed the world's first Unicode Devanagari Library for Arduino. Or at least I think so because I did not find any other documentation or video of someone who tried making an actual font library supporting Unicode for the Devanagari system.
Thank you supporter of this channel Mr Benn Rees for the incredible financial aid in making these videos.
I have written this font library in such a way that it combines with the Adafruit GFX library to display Nepali or Hindi letters in any Arduino-supported display.