Deploying Client Side Env Variables/Incorrect Useage?

  function isRunningLocally() {
    return window.location.hostname === 'localhost';
  }
  if (!isRunningLocally()) {
    // this isn't running
    posthog.init(import.meta.env.REACT_APP_PUBLIC_POSTHOG_KEY!, {
      api_host: import.meta.env.REACT_APP_PUBLIC_POSTHOG_HOST,
      person_profiles: 'always',
    });
  }