This is pretty neat stuff. I wonder if it takes a corporation working on closed-source code to implement stuff like this, i.e., work that is generally unglamorous, tedious, and does not have enough open-source developers who would see a personal benefit. My closest guess for an analogous open-source endeavor would be projects to improve Linux font rendering, maybe Wayland, or perhaps systemd, although all of those are still many times more ‘mainstream’ than supporting a script like Soyombo, whose use according to Wikipedia is “practically nonexistent today.”