Regarding global state and React, this looks relevant: <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=Uu4Yz2HmCgE&amp;t=11m37s" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=Uu4Yz2HmCgE&amp;t=11m37s</a>