I upgraded my development VM and had to start from scratch. Considering that my previous VM was a horrible mish-mash of conflicting development environments, this may not be all bad. However, I don't know what I'm doing, so I'll likely end up with another horrible, but hopefully less-bad, evironmen...
Just a few links to some of the open tabs from when I was adding tag support to my Gatsby site.
https://github.com/erikthedeveloper/erikaybar.name-gatsby/blob/master/src/pages/index.js
https://github.com/erikthedeveloper/erikaybar.name-gatsby/pull/1/files