For now, I'm just messing around with the features available in a Wix blog.
The first desirable feature that comes to mind is math formatting, perhaps with MathJax? I found this on Wix community discussion board.
<script type="text/javascript" async src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/latest.js?config=TeX-MML-AM_CHTML" async>
</script>
<p>
When \(a \ne 0\), there are two solutions to \(ax^2 + bx + c = 0\) and they are
$$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
</p>I'd also like to embed RShiny apps, maybe. I used this iframes code:
<iframe src="https://ingleyahoo.shinyapps.io/attenuation/" width="110%" height="900px"></iframe>