1/ New `forge script` patterns unlocked thanks to @devan_non. No more passing private keys in the CLI:

1. `export PRIVATE_KEY=&lt;key&gt;` in `.env`
2. `uint256 privKey = vm.envUint("PRIVATE_KEY")`
3. `address deployer = vm.rememberKey(privKey)`
4. Deploy with `vm.broadcast(deployer)`

2/ You can also do this with mnemonics:

1. `export MNEMONIC=&lt;mnemonic&gt;` in `.env`
2. `uint256 privKey = vm.deriveKey(vm.envString("MNEMONIC"), index);`
3. `address deployer = vm.rememberKey(privKey)`
4. Deploy with `vm.broadcast(deployer)`

New Deploy Patterns for `forge script`