perkeep/website/blobserver-example/example-blobserver-config.json

{ "_for-emacs": "-*- mode: js2;-*-",
  "baseURL": ["_env", "http://camlistore.org:3179"],
  "password": ["_env", "${CAMLI_PASSWORD}"],

  "prefixes": {
    "/": {
         "handler": "storage-filesystem",
         "handlerArgs": {
            "path": ["_env", "${CAMLI_ROOT}"]
      }
    }
  }
}