I was thinking that developer experience is user experience – where the user is a developer. You are suggesting that the user and developer are different roles

I was thinking that developer experience is user experience – where the user is a developer. You are suggesting that the user and developer are different roles because even when the user is a developer there is still the developer who builds that tool It's possible you are right but I'm not an expert. I always think of the developer experience is the experience of developers using the tools and APIs you produce.