title: Configuring jest, wallabyjs in a rush monorepo
body: <p>I'm attempting to set up a monorepo using <a href="https://rushjs.io" rel="nofollow noreferrer">rush</a> for monorepo management, <a href="https://jestjs.io" rel="nofollow noreferrer">jest</a> as my test framework, and <a href="https://wallabyjs.com" rel="nofollow noreferrer">wallabyjs</a> as my test runner.  When I attempt to start wallaby, I get the error <code>[Error] Automatic Jest configuration error: Module jest-cli is not found in '.'.</code> in my wallaby console.</p>
  
  <p>My understanding of rush and its monorepo approach is that the root does not have a package.json - just the actual libs/apps have a package.json file.  If this is the case, how do I add jest-cli at the root level?  I have jest-cli installed globally.</p>
  
  <p>What do I need to do to get this running?</p>