This is powered by some very real Minecraft plugins.  A stripped down version is available here: <a href="https:&#x2F;&#x2F;github.com&#x2F;VerizonCraft&#x2F;Boxel-client" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;VerizonCraft&#x2F;Boxel-client</a>