diff --git a/ts/client.ts b/ts/client.ts
index 97e884a9d..18cd027f6 100644
--- a/ts/client.ts
+++ b/ts/client.ts
@@ -7,9 +7,12 @@ export const MANGO_V4_ID = new PublicKey(
 );
 
 export class MangoClient {
-  constructor(public program: Program<MangoV4>) {}
+  constructor(public program: Program<MangoV4>, public devnet?: boolean) {}
 
-  static async connect(provider: Provider): Promise<MangoClient> {
+  static async connect(
+    provider: Provider,
+    devnet?: boolean,
+  ): Promise<MangoClient> {
     // TODO: use IDL on chain or in repository? decide...
     // Alternatively we could fetch IDL from chain.
     // const idl = await Program.fetchIdl(MANGO_V4_ID, provider);
@@ -41,6 +44,7 @@ export class MangoClient {
 
     return new MangoClient(
       new Program<MangoV4>(idl as MangoV4, MANGO_V4_ID, provider),
+      devnet,
     );
   }
 }
diff --git a/ts/example.ts b/ts/example.ts
index bb3a1098e..5cf734a9d 100644
--- a/ts/example.ts
+++ b/ts/example.ts
@@ -55,7 +55,7 @@ async function main() {
   const adminWallet = new Wallet(admin);
   console.log(`Admin ${adminWallet.publicKey.toBase58()}`);
   const adminProvider = new Provider(connection, adminWallet, options);
-  const adminClient = await MangoClient.connect(adminProvider);
+  const adminClient = await MangoClient.connect(adminProvider, true);
 
   const payer = Keypair.fromSecretKey(
     Buffer.from(
@@ -63,7 +63,6 @@ async function main() {
     ),
   );
   console.log(`Payer ${payer.publicKey.toBase58()}`);
-
   //
   // Find existing or create a new group
   //
@@ -148,7 +147,7 @@ async function main() {
   );
   const userWallet = new Wallet(user);
   const userProvider = new Provider(connection, userWallet, options);
-  const userClient = await MangoClient.connect(userProvider);
+  const userClient = await MangoClient.connect(userProvider, true);
   console.log(`User ${userWallet.publicKey.toBase58()}`);
 
   //
@@ -325,17 +324,7 @@ async function main() {
     ],
     serumProgramId,
   );
-  let ordersForOwner = await serum3MarketExternal.loadOrdersForOwner(
-    userClient.program.provider.connection,
-    group.publicKey,
-  );
-  for (const order of ordersForOwner) {
-    console.log(
-      `- Existing serum3 order orderId ${order.orderId}, side ${order.side}, price ${order.price}, size ${order.size}`,
-    );
-  }
-
-  let clientOrderId = Date.now();
+  const clientOrderId = Date.now();
   await serum3PlaceOrder(
     userClient,
     group.publicKey,
@@ -367,68 +356,14 @@ async function main() {
     10,
   );
 
-  ordersForOwner = await serum3MarketExternal.loadOrdersForOwner(
+  const ordersForOwner = await serum3MarketExternal.loadOrdersForOwner(
     userClient.program.provider.connection,
     group.publicKey,
   );
-  let orderJustPlaced = ordersForOwner.filter(
+  const orderJustPlaced = ordersForOwner.filter(
     (order) => order.clientId?.toNumber() === clientOrderId,
   )[0];
-  console.log(
-    `- New Serum3 order orderId ${orderJustPlaced.orderId}, side ${orderJustPlaced.side}, price ${orderJustPlaced.price}, size ${orderJustPlaced.size}`,
-  );
-
-  clientOrderId = Date.now();
-  await serum3PlaceOrder(
-    userClient,
-    group.publicKey,
-    mangoAccount.publicKey,
-    user.publicKey,
-    mangoAccount.serum3[0].openOrders,
-    serum3Market.publicKey,
-    serumProgramId,
-    serumMarketExternalPk,
-    serum3MarketExternal.bidsAddress,
-    serum3MarketExternal.asksAddress,
-    serum3MarketExternal.decoded.eventQueue,
-    serum3MarketExternal.decoded.requestQueue,
-    serum3MarketExternal.decoded.baseVault,
-    serum3MarketExternal.decoded.quoteVault,
-    serum3MarketExternalVaultSigner,
-    usdcBank.publicKey,
-    usdcBank.vault,
-    btcBank.publicKey,
-    btcBank.vault,
-    healthRemainingAccounts,
-    Serum3Side.ask,
-    40000,
-    6,
-    1000000,
-    Serum3SelfTradeBehavior.decrementTake,
-    Serum3OrderType.limit,
-    clientOrderId,
-    10,
-  );
-  ordersForOwner = await serum3MarketExternal.loadOrdersForOwner(
-    userClient.program.provider.connection,
-    group.publicKey,
-  );
-  orderJustPlaced = ordersForOwner.filter(
-    (order) => order.clientId?.toNumber() === clientOrderId,
-  )[0];
-  console.log(
-    `- New Serum3 order orderId ${orderJustPlaced.orderId}, side ${orderJustPlaced.side}, price ${orderJustPlaced.price}, size ${orderJustPlaced.size}`,
-  );
-
-  ordersForOwner = await serum3MarketExternal.loadOrdersForOwner(
-    userClient.program.provider.connection,
-    group.publicKey,
-  );
-  for (const order of ordersForOwner) {
-    console.log(
-      `- serum3 order orderId ${order.orderId}, side ${orderJustPlaced.side}, price ${order.price}, size ${order.size}`,
-    );
-  }
+  console.log(`- Serum3 order orderId ${orderJustPlaced.orderId}`);
 
   process.exit(0);
 }