We learned how to migrate your contract using geth to Ropsten and Kovan, and the principles we learned will allow us to migrate on to the main Ethereum network when we are ready to deploy a real-world contract.
Once again, we use parity and geth because they can connect to real Ethereum networks such as Ropsten and Kovan, unlike ganache-cli.
I will see you in the next chapter, where we will learn to how integrate our Truffle project with some of the most popular JavaScript frameworks, such as Angular, React, and Vue.