This should be re-titled as &quot;Majestic Monolith RENDERING&quot;<p>Reason being, it&#x27;s only the rendering engine that is a monolithic basecamp app that renders both web and mobile.<p>But a variety of 3rd party services are used to make basecamp work, such as<p>- Queen Bee is an external rails app for billing<p>- CloudFront for CDN<p>- S3 for customer doc storage<p>Etc<p>All of which use services (micro services) stitched together to make basecamp work