Shelly 1 with DHT22 temperature and humidity addon

I have my Shelly 1 running ESPhome and was wondering if anyone out there has this addon working with ESPhome before I commit and buy that?

Look here: Shelly 1/1 PM addon / sensor component · Issue #701 · esphome/feature-requests · GitHub. It seems like it is working

It seems to me that you have to add a custom-components folder below the esphome folder, and copy these files there. I haven’t tried it myself.