In this chapter, we took a look at Composer, which is one of the first things that we will interact with when installing Magento. We then moved on to service contracts as one of the strongest Magento architectural parts, which turned out to be good old PHP interfaces in use. Further, we covered some bits about the Magento code generation feature. Thus, we have a basic knowledge of the Factory and Proxy classes. We then had a look at the
var directory and explored its role, especially during development. Finally, we touched upon the coding standards used in Magento.
In the next chapter, we will discuss the dependency injection, which is one of the most important architectural parts of Magento.