It has been 3yr+ since my last time when I played with smart contract. Ethereum dev toolchain has been evolved so much. I want to refresh my memory of how to create and deploy a contract. I chose to create my CC0 Moonbirds contract on the testnet:Why Moonbirds? See my logo, lol.Why could it be a CC0 moonbirds contract? See this tweet.Step 1Download moonbirds.sol from Etherscan (surprisingly found Etherscan can now show the contract code directly), and copy it into remix.ethereum.org. I made f...