mix new sugaryworld
a successful hello world

However, then I read this on https://github.com/sugar-framework/sugar:

Note - 2014-07-18

Sugar may transition to more of an educational project. Either way,
it will remain updated to a certain degree, especially once Elixir v1 hits.

If you're looking for a project with a more steady backing of support,
please use Phoenix.

Oh dear, Phoenix looks too heavyweight for a simple microservice...