Except now the 2nd and 3rd seasons have moved past the book and are supposed to be based on ideas that Terry Pratchett had but never wrote into novels.
That would be from good omens season 2 (positive its good omens 70% sure it's season 2 edit, it was season 1.), it's produced and released by Amazon, based on works by Patchett and Gaiman (they had all 3 seasons storyboarded before patchett passed, and everything is produced with Gaimans final approval iirc) they are incredibly different stories, and both entirely consuming to watch.