Support for environment variables

[joaosoares]

Are there any plans on the roadmap for supporting the usage of environment variables? They are useful for setting constants that vary between environments (such as API endpoints) and it is a feature that does not seem to require configuration.

[eanplatter]

Hi @joaosoares there is a discussion for this going on at #102, going to close unless you feel your issue concerns a different aspect of the problem.