diff --git a/packages/nextjs/app/_components/Grants/AllGrantsList.tsx b/packages/nextjs/app/_components/Grants/AllGrantsList.tsx
index b92d2e6..ade246f 100644
--- a/packages/nextjs/app/_components/Grants/AllGrantsList.tsx
+++ b/packages/nextjs/app/_components/Grants/AllGrantsList.tsx
@@ -18,7 +18,8 @@ export const AllGrantsList = ({ allGrants }: AllGrantsListProps) => {
   const [statusFilter, setStatusFilter] = useState("all");
 
   const maxStage = useMemo(() => {
-    return Math.max(...allGrants.flatMap(grant => grant.stages.map(stage => stage.stageNumber)));
+    const stageNumbers = allGrants.flatMap(grant => grant.stages.map(stage => stage.stageNumber));
+    return stageNumbers.length > 0 ? Math.max(...stageNumbers) : 0;
   }, [allGrants]);
 
   const filteredGrants = useMemo(() => {
diff --git a/packages/nextjs/scaffold.config.ts b/packages/nextjs/scaffold.config.ts
index 011c305..c3362ea 100644
--- a/packages/nextjs/scaffold.config.ts
+++ b/packages/nextjs/scaffold.config.ts
@@ -7,6 +7,7 @@ export type ScaffoldConfig = {
   walletConnectProjectId: string;
   disableBurnerWalletOnLocal: boolean;
   onlyLocalBurnerWallet: boolean;
+  startBlock: number;
 };
 
 const scaffoldConfig = {
@@ -34,6 +35,9 @@ const scaffoldConfig = {
 
   // disable burner wallet for all networks
   disableBurnerWalletOnLocal: true,
+
+  // start blocknumber for contract deployment indexing
+  startBlock: 0,
 } as const satisfies ScaffoldConfig;
 
 export default scaffoldConfig;
diff --git a/packages/ponder/.env.example b/packages/ponder/.env.example
new file mode 100644
index 0000000..6ccf2f0
--- /dev/null
+++ b/packages/ponder/.env.example
@@ -0,0 +1,4 @@
+PONDER_RPC_URL_31337=http://127.0.0.1:8545/
+PONDER_RPC_URL_10=
+PONDER_RPC_URL_11155420=
+APP_URL=http://localhost:3000
diff --git a/packages/ponder/ponder.config.ts b/packages/ponder/ponder.config.ts
index ef4c025..bff129b 100644
--- a/packages/ponder/ponder.config.ts
+++ b/packages/ponder/ponder.config.ts
@@ -23,11 +23,10 @@ const contracts = Object.fromEntries(
         abi: deployedContracts[targetNetwork.id][contractName].abi,
         address: deployedContracts[targetNetwork.id][contractName].address,
         // TODO: Change startBlock when deploying
-        startBlock:
-          deployedContracts[targetNetwork.id][contractName].startBlock || 0,
+        startBlock: scaffoldConfig.startBlock || 0,
       },
     ];
-  })
+  }),
 );
 
 export default createConfig({
diff --git a/packages/ponder/src/StreamContract.ts b/packages/ponder/src/StreamContract.ts
index e098968..d48aa5c 100644
--- a/packages/ponder/src/StreamContract.ts
+++ b/packages/ponder/src/StreamContract.ts
@@ -1,5 +1,7 @@
 import { ponder } from "@/generated";
 
+const APP_URL = process.env.APP_URL || "http://localhost:3000";
+
 ponder.on("Stream:Withdraw", async ({ event, context }) => {
   try {
     const { db } = context;
@@ -17,8 +19,7 @@ ponder.on("Stream:Withdraw", async ({ event, context }) => {
       },
     });
 
-    // TODO: Change url before deploying
-    await fetch("http://localhost:3000/api/stages/revalidate-status", {
+    await fetch(`${APP_URL}/api/stages/revalidate-status`, {
       method: "POST",
       headers: {
         "Content-Type": "application/json",
@@ -30,7 +31,7 @@ ponder.on("Stream:Withdraw", async ({ event, context }) => {
           builderAddress: event.args.to,
           contractGrantId: event.args.grantId,
         },
-        replacer
+        replacer,
       ),
     });
   } catch (error) {