I found a site that lets you build your own Google Skills. I played around with it a little but didn't get very far but thought I'd post this here encase someone else wanted to try it. I do not know how accessible it is and I found that it works best on Google Chrome but I only tried it on Chrome and IE. I was not able to do anything with it on IE.

How To Build Your Own Action For Google Home Using API
https://www.smashingmagazine.com/2017/0 … me-api-ai/

Dialogflow site for making skills
https://console.dialogflow.com/api-client/#/login