updated scripts

Author: GabrielCartier

.env.example

@@ -2,4 +2,4 @@ MAINNET_RPC_URL=
 SEPOLIA_RPC_URL=
 PRIVATE_KEY=
 MAINNET_PRIVATE_KEY=
-ETHERSCAN_KEY=
+ETHERSCAN_API_KEY=

foundry.toml

@@ -17,3 +17,10 @@ fuzz_runs = 1000
 verbosity = 4
 
 gas_reports = ["Echo"]
+
+# Config
+[rpc_endpoints]
+sepolia = "${SEPOLIA_RPC_URL}"
+
+[etherscan]
+sepolia = { key = "${ETHERSCAN_API_KEY}" }

script/DeployEcho.s.sol

@@ -9,7 +9,8 @@ contract DeployEcho is Script {
     function test() public {}
 
     function run() external {
-        vm.startBroadcast();
+        uint256 deployerPrivateKey = vm.envUint("PRIVATE_KEY");
+        vm.startBroadcast(deployerPrivateKey);
         new Echo({owner: address(0x213bE2f484Ab480db4f18b0Fe4C38e1C25877f09)});
 
         vm.stopBroadcast();