Alrighty, my bot is now running at @pixelbot. This bot just toots whenever there's an OTA for a Pixel device, for those of us (like me) who root their phones and lose automatic OTAs.
For reasons of spam prevention, for now its toots will be unlisted. This may change in the future
And the source for it can be found here: https://github.com/Lomeli12/PixelOTABot
Generalistic and moderated instance.