json ouput

[lizelive]

Is your feature request related to a problem? Please describe.
i want to run the template at runtime

Describe the solution you'd like
either add a flag --no-template, or make it default cargo about > about.json

Describe alternatives you've considered
adding json_to_str handlebar helper

Additional context
nope

[prestomation]

I found a workaround to this was a template where the entire content is {{{json this}}}