In our `environment.js` settings, we want to define build-environment-dependent settings for corber, like so: ```js if (environment === 'development' && process.env.CORBER ) { ... } ``` But `corber start` fails because the value of `environment` is for some reason undefined at this point and thus none of the conditionals match. A workaround is to _first_ define the minimum settings to pass validation: ```js if (process.env.CORBER) { ENV.locationType = 'hash'; ENV.rootURL = ''; }; ``` Simple enough, but it strikes me that this might be a bug? (FWIW, I don't believe that `corber build` has this issue.)