diff --git a/.prettierrc b/.prettierrc
index 315f7cf..de6705e 100644
--- a/.prettierrc
+++ b/.prettierrc
@@ -1,7 +1,19 @@
 {
   "printWidth": 120,
-  "tabWidth": 4,
+  "tabWidth": 2,
   "useTabs": false,
   "singleQuote": false,
-  "bracketSpacing": false
+  "bracketSpacing": true,
+  "overrides": [
+    {
+      "files": "*.sol",
+      "options": {
+        "printWidth": 120,
+        "tabWidth": 4,
+        "useTabs": false,
+        "singleQuote": false,
+        "bracketSpacing": false
+      }
+    }
+  ]
 }
diff --git a/README.md b/README.md
index 0ade691..e0d2151 100644
--- a/README.md
+++ b/README.md
@@ -28,24 +28,23 @@ A default implementation is included and this contract will be proxy upgradable
 
 ## Development
 
-# Setup
+### Setup
 
--   Install foundry: https://book.getfoundry.sh/getting-started/installation
+-   [Install foundry](https://book.getfoundry.sh/getting-started/installation)
 -   Install Dependencies: `forge install`
 -   Build: `forge build`
 -   Test: `forge test`
 
-# Deployment
+### Deployment
 
 1. Ensure .env file is set, `cp .env.example`
 2. Populate Enviornment variables: `source .env`
-
-3. We use a forge script to deploy the contracts, and have an additional extract.js script to store a JSON file with
+3. We use a forge script to deploy the contracts, and have an additional extract.js script to store a JSON file with coalesced deployment information. (see [output](./output/))
 
 -   (mainnet): `forge script script/Deploy.s.sol --broadcast --verify --rpc-url $RPC_URL --private-key $PRIVATE_KEY --etherscan-api-key $ETHERSCAN_API_KEY`
 -   (testnet, goerli for example): `forge script script/Deploy.s.sol --broadcast --verify --rpc-url $RPC_URL --private-key $PRIVATE_KEY --verifier-url https://api-goerli.etherscan.io/api --chain-id 5`
 
-4. Run `node script/util/extract.js` to extract deployment information from forge broadcast output (broadcast/latest-run.json specifically).
+4. Run `node script/util/extract.js <chainId>` to extract deployment information from forge broadcast output (broadcast/latest-run.json).
 
 ---
 
diff --git a/script/utils/extract.js b/script/utils/extract.js
index cab7609..85c8b10 100644
--- a/script/utils/extract.js
+++ b/script/utils/extract.js
@@ -41,8 +41,7 @@ async function main() {
     deployments
       .filter(
         ({ contractName }) =>
-          contractName !== "TransparentUpgradeableProxy" &&
-          !proxies.find((p) => p.contractName === contractName)
+          contractName !== "TransparentUpgradeableProxy" && !proxies.find((p) => p.contractName === contractName)
       )
       .map(async ({ contractName, contractAddress, transaction: { data } }) => ({
         address: contractAddress,
@@ -70,8 +69,10 @@ async function main() {
   }
   // overwrite latest with changed contracts
   out.latest = {
-    ...out.latest,
-    contracts,
+    contracts: {
+      ...out.latest?.contracts,
+      ...contracts,
+    },
     input: config[chainId],
     commitHash,
     timestamp: data.timestamp,
@@ -106,7 +107,7 @@ async function getVersion(contractAddress, rpcUrl) {
     if (res.error) throw new Error(res.error.message);
     return { version: hexToAscii(res.result)?.trim() || res.result };
   } catch (e) {
-    if (e.message === "execution reverted") return null; // contract does implement getVersion()
+    if (e.message === "execution reverted") return null; // contract does not implement getVersion()
     console.log("getVersion error:", rpcUrl, e.message);
     return { version: undefined };
   }
diff --git a/src/PolygonMigration.sol b/src/PolygonMigration.sol
index 5fabc9b..9cc05a4 100644
--- a/src/PolygonMigration.sol
+++ b/src/PolygonMigration.sol
@@ -125,5 +125,5 @@ contract PolygonMigration is Ownable2StepUpgradeable, IPolygonMigration {
      * variables without shifting down storage in the inheritance chain.
      * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
      */
-    uint256[48] private __gap;
+    uint256[49] private __gap;
 }
diff --git a/src/interfaces/IPolygonEcosystemToken.sol b/src/interfaces/IPolygonEcosystemToken.sol
index 0107822..9547b6e 100644
--- a/src/interfaces/IPolygonEcosystemToken.sol
+++ b/src/interfaces/IPolygonEcosystemToken.sol
@@ -13,7 +13,7 @@ interface IPolygonEcosystemToken is IERC20, IERC20Permit, IAccessControlEnumerab
     error MaxMintExceeded(uint256 maxMint, uint256 mintRequested);
 
     function mintPerSecondCap() external view returns (uint256 currentMintPerSecondCap);
-  
+
     function getVersion() external pure returns (string memory version);
 
     function lastMint() external view returns (uint256 lastMintTimestamp);
diff --git a/src/interfaces/IPolygonMigration.sol b/src/interfaces/IPolygonMigration.sol
index a420668..78ec75f 100644
--- a/src/interfaces/IPolygonMigration.sol
+++ b/src/interfaces/IPolygonMigration.sol
@@ -14,7 +14,7 @@ interface IPolygonMigration {
 
     function unmigrationLocked() external view returns (bool isUnmigrationLocked);
 
-    function polygon() external view returns(IERC20 polygonEcosystemToken);
+    function polygon() external view returns (IERC20 polygonEcosystemToken);
 
     function getVersion() external pure returns (string memory version);