Create hardhat.config.js

hardhat.config.js

@@ -0,0 +1,11 @@
+require("@nomicfoundation/hardhat-toolbox");
+
+module.exports = {
+  solidity: "0.8.20",
+  networks: {
+    base: {
+      url: process.env.BASE_RPC_URL || "https://mainnet.base.org",
+      accounts: process.env.PRIVATE_KEY ? [process.env.PRIVATE_KEY] : []
+    }
+  }
+};