diff --git a/contracts/ConfiguratorProxy.sol b/contracts/ConfiguratorProxy.sol
index 70a1c99ce..ab39f4d9b 100644
--- a/contracts/ConfiguratorProxy.sol
+++ b/contracts/ConfiguratorProxy.sol
@@ -13,7 +13,6 @@ contract ConfiguratorProxy is TransparentUpgradeableProxy {
      */
     constructor(address _logic, address _admin, bytes memory _data) payable TransparentUpgradeableProxy(_logic, _admin, _data) {}
 
-    // XXX triple check!
     /**
      * @dev Overrides the TransparentUpgradeableProxy's _beforeFallback so admin can call the implementation.
      */
diff --git a/contracts/test/EvilToken.sol b/contracts/test/EvilToken.sol
index e36bc5b63..b17b7ae58 100644
--- a/contracts/test/EvilToken.sol
+++ b/contracts/test/EvilToken.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: XXX
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity 0.8.15;
 
 import "./../ERC20.sol";
diff --git a/contracts/test/FaucetToken.sol b/contracts/test/FaucetToken.sol
index 62b69f680..5c4a8a4cf 100644
--- a/contracts/test/FaucetToken.sol
+++ b/contracts/test/FaucetToken.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: XXX
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity 0.8.15;
 
 /**
diff --git a/contracts/test/FaucetWETH.sol b/contracts/test/FaucetWETH.sol
index 02773e80c..7860c8346 100644
--- a/contracts/test/FaucetWETH.sol
+++ b/contracts/test/FaucetWETH.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: XXX
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity 0.8.15;
 
 import "../vendor/canonical-weth/contracts/WETH9.sol";
diff --git a/hardhat.config.ts b/hardhat.config.ts
index 16dcc1157..b0c20c7a2 100644
--- a/hardhat.config.ts
+++ b/hardhat.config.ts
@@ -87,8 +87,8 @@ function setupDefaultNetworkProviders(hardhatConfig: HardhatUserConfig) {
       accounts: ETH_PK
         ? [ETH_PK]
         : {
-            mnemonic: MNEMONIC,
-          },
+          mnemonic: MNEMONIC,
+        },
     };
   }
 }
diff --git a/plugins/scenario/utils/TokenSourcer.ts b/plugins/scenario/utils/TokenSourcer.ts
index cb972990c..a3f1dfa12 100644
--- a/plugins/scenario/utils/TokenSourcer.ts
+++ b/plugins/scenario/utils/TokenSourcer.ts
@@ -52,7 +52,6 @@ async function removeTokens(
   });
 }
 
-// XXX make sure we don't source tokens directly from the protocol
 async function addTokens(
   hre: HardhatRuntimeEnvironment,
   amount: BigNumber,