A buddy who does Web3 development recently complained to me: "Some on-chain environments are simply a developer's nightmare—deploying a contract takes forever, gas fees keep skyrocketing during debugging, and the cost of changing a couple of lines of code is enough to treat yourself to a big meal." I threw him the link to Caldera and said, "Try this, it will definitely cure your impatience."
At first, he was stubborn and said, "Layer 2 is all about the same," but after setting up a test environment, he was dumbfounded: transaction confirmations were as fast as a local testnet, fees were negligible, and the compatibility with the Ethereum mainnet was ridiculously good; the code he wrote before could run almost without modification.
Now he boasts about Caldera's "developer-friendly buff" to anyone he meets, saying that he used to be grateful if he could deploy a contract three times a day, but now he has more time to slack off and can also optimize his code in the meantime. I can only say that while they are both Layer 2, some make you feel overwhelmed, while others let you win easily—this difference is only understood through experience.
