Why opening the browser? Can't we render it locally?

[alrevuelta]

Just found this amazing project, but find odd that it has to open the browser in order to render the image and then download it. Isn't it possible to run it locally? Faster rendering, no internet connection needed, and no dependancy to an external service.

I'm sure the code from carbon-now can be reused somehow. Not a web-dev myself, but happy to help if anyone wants to team up.