Validate Twitter social cards for your website
What is a twitter card
//@TODO: Explain what a social card even is at some point
I found a site that works pretty well. Here's the link:
cards-dev.twitter.com/validator
Here's what it looks like:
How to design social cards
So Ryan Warner has this Figma community template, that is a staring point. You'll want the layer named Static Open Graph Image
for most of this.