Long story boring, the code is in my miniblog repo, but some important bits.
Next, I have the following code used to generate the image. It is called by an over-ridden twitter partial which includes a link to the generated image. When all is said an done, Hugo builds that image using the info from the get-featured-image.html file and writes it to disk.
It works, for now. I need to do some tweaks and make it look better, but my Photoshop skills are very lacking! More tweaks required!