I'm having trouble imagining who would want to use this. What's the environment where you would have curl and a need for generating UUIDs, but wouldn't have access to uuidgen or similar?
Maybe a JS App which is made completely out of third party APIs, without anything self-hosted? Not discussing wether this is a good idea or not, though... I was surprised to see that there is no "built-in" mechanism in JS to generate a GUID. As a C# dev, I'm used to Guid.NewGuid()
Quick GUID's in JavaScript
Math.random().toString(32).slice(2,10)
Gives you an 8 character GUID.... but maybe don't use it for anything important....