I am asking this question often.<p>We are using very advanced CloudFormation in the open source Convox platform.<p><a href="https:&#x2F;&#x2F;github.com&#x2F;convox&#x2F;rack" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;convox&#x2F;rack</a><p>I have touched every corner of CF including lots of Custom Resources.<p>Right now we are using the golang template tools and tests to generate our templates.<p>But I have lots of needs and ideas for improving this. A CF template compiler and simulator should be possible, giving us all tons of confidence in making template changes and therefore any infrastructure update.<p>I have some sketches that I haven&#x27;t published yet.<p>And I strongly believe CF is the best tool in this space if you&#x27;re all in on AWS. Let Amazon be responsible for operating a transactional infrastructure mutation service. It&#x27;s ridiculously hard to do this right.<p>If you want to brainstorm some ideas send me a message :)