I have a vue.config.js file in my project's base directory.  I'd like to move this next to my other config files in a /config/ folder.
How can I specify the new location of this file for vue-cli?
The environment variable VUE_CLI_SERVICE_CONFIG_PATH specifies the absolute path to vue.config.js. Relative paths for this variable fail on macOS (and probably other platforms).
Example on command line:
$ VUE_CLI_SERVICE_CONFIG_PATH=$PWD/config/vue.config.js npm run build
Or in package.json:
{
  "scripts": {
    "build": "VUE_CLI_SERVICE_CONFIG_PATH=$PWD/config/vue.config.js vue-cli-service build"
  }
}