You have to put Thimble into context. It&#x27;s a tool for teaching basic Web skills to people new to the field, and part of the Mozilla Learning initiative[0].<p>I&#x27;m not sure it&#x27;s intended for actual development.<p>[0] <a href="https:&#x2F;&#x2F;teach.mozilla.org&#x2F;" rel="nofollow">https:&#x2F;&#x2F;teach.mozilla.org&#x2F;</a><p>EDIT: forgot the link