"They're pretty much all opinion-based, but I wanted to point out Jbuilder in particular because in my experience people call `as_json` or `to_json` on objects and shoe-horn them into the structure they want, and Jbuilder is a better solution. It's definitely not the only solution, you're right. I've used custom serializers in the past but I found Jbuilder much friendlier, especially with nested objects and relations." - Jalada