There is an extension of this project with more features here: https://github.com/egilll/tex-linebreak2#limitations-on-webp...

See also the demo: https://egilll.github.io/tex-linebreak2/

See also https://webkit.org/blog/16547/better-typography-with-text-wr...

discussed here:

https://news.ycombinator.com/item?id=43622703