Thanks for asking... I mentioned it earlier in this thread, and didn’t want to spam it unprompted. But it is called Mathup (https://runarberg.github.io/mathup/

Thanks for asking... I mentioned it earlier in this thread, and didn’t want to spam it unprompted. But it is called Mathup (https://runarberg.github.io/mathup/ https://runarberg.github.io/mathup/) and I purposely just translated to MathML and with the intention to leave rendering to a different library (e.g. MathJax; or the browser if you’re only targeting Firefox or Safari)