I wanted to create a plugin for using popper.js and tippy.js to display tooltips on top of elements in tiddlers.
I was eventually hoping to use it to display tooltips on top of displayed MathML equations (if that's possible).
Anyway using node, npm, babel and webpack 4 I've been able to create the tooltips; integrating them into TW5 would be incredible, but so far I haven't been able to do that.