This has been an awesome experience. I hope building the Tontine game was a lot of fun for you.
An important takeaway from this chapter is to think twice before deciding to deploy your final contract and release your DApp. It’s good practice to always plan your contract-development process before jumping into the code, along with conducting thorough testing either using JavaScript or Solidity to ensure quality and security. Keep in mind that writing smart contracts is a critical task as you’ll be dealing with real money. You don’t want your project to end up in the blockchain graveyard (https://magoo.github.io/Blockchain-Graveyard/), do you? The rule of thumb is begin with testing locally on Ganache, and then on a Testnet before going onto the real Mainnet. Besides this, asking other developers to review your code is always a good habit.
To summarize...
