flatiron/nconf — pull request #49 by mhart (2012-06-21 07:22:24+00:00)
Title: Add support for nested configs via env

This allows you to use nested config keys from env variables by specifying a custom separator (I believe this isn't currently possible because you can't use the `:` character in env variable names).

```javascript
console.log(require('nconf').env('__').get('SOME:THING'));
```

```bash
$ SOME__THING=whatever node example.js
whatever
```