diff --git a/packages/google-appengine/.eslintrc.json b/packages/google-appengine/.eslintrc.json
index 78215349546..3e8d97ccb39 100644
--- a/packages/google-appengine/.eslintrc.json
+++ b/packages/google-appengine/.eslintrc.json
@@ -1,3 +1,4 @@
 {
-  "extends": "./node_modules/gts"
+  "extends": "./node_modules/gts",
+  "root": true
 }
diff --git a/packages/google-appengine/system-test/install.ts b/packages/google-appengine/system-test/install.ts
index 394f3362d20..f66069aa394 100644
--- a/packages/google-appengine/system-test/install.ts
+++ b/packages/google-appengine/system-test/install.ts
@@ -40,7 +40,7 @@ describe('📦 pack-n-play test', () => {
       packageDir: process.cwd(),
       sample: {
         description: 'JavaScript user can use the library',
-        ts: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
+        cjs: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
       }
     };
     await packNTest(options);
diff --git a/packages/google-apps-events-subscriptions/.eslintrc.json b/packages/google-apps-events-subscriptions/.eslintrc.json
index 78215349546..3e8d97ccb39 100644
--- a/packages/google-apps-events-subscriptions/.eslintrc.json
+++ b/packages/google-apps-events-subscriptions/.eslintrc.json
@@ -1,3 +1,4 @@
 {
-  "extends": "./node_modules/gts"
+  "extends": "./node_modules/gts",
+  "root": true
 }
diff --git a/packages/google-apps-events-subscriptions/system-test/install.ts b/packages/google-apps-events-subscriptions/system-test/install.ts
index 394f3362d20..f66069aa394 100644
--- a/packages/google-apps-events-subscriptions/system-test/install.ts
+++ b/packages/google-apps-events-subscriptions/system-test/install.ts
@@ -40,7 +40,7 @@ describe('📦 pack-n-play test', () => {
       packageDir: process.cwd(),
       sample: {
         description: 'JavaScript user can use the library',
-        ts: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
+        cjs: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
       }
     };
     await packNTest(options);
diff --git a/packages/google-apps-meet/.eslintrc.json b/packages/google-apps-meet/.eslintrc.json
index 78215349546..3e8d97ccb39 100644
--- a/packages/google-apps-meet/.eslintrc.json
+++ b/packages/google-apps-meet/.eslintrc.json
@@ -1,3 +1,4 @@
 {
-  "extends": "./node_modules/gts"
+  "extends": "./node_modules/gts",
+  "root": true
 }
diff --git a/packages/google-apps-meet/system-test/install.ts b/packages/google-apps-meet/system-test/install.ts
index 394f3362d20..f66069aa394 100644
--- a/packages/google-apps-meet/system-test/install.ts
+++ b/packages/google-apps-meet/system-test/install.ts
@@ -40,7 +40,7 @@ describe('📦 pack-n-play test', () => {
       packageDir: process.cwd(),
       sample: {
         description: 'JavaScript user can use the library',
-        ts: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
+        cjs: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
       }
     };
     await packNTest(options);
diff --git a/packages/google-area120-tables/.eslintrc.json b/packages/google-area120-tables/.eslintrc.json
index 78215349546..3e8d97ccb39 100644
--- a/packages/google-area120-tables/.eslintrc.json
+++ b/packages/google-area120-tables/.eslintrc.json
@@ -1,3 +1,4 @@
 {
-  "extends": "./node_modules/gts"
+  "extends": "./node_modules/gts",
+  "root": true
 }
diff --git a/packages/google-area120-tables/system-test/install.ts b/packages/google-area120-tables/system-test/install.ts
index 394f3362d20..f66069aa394 100644
--- a/packages/google-area120-tables/system-test/install.ts
+++ b/packages/google-area120-tables/system-test/install.ts
@@ -40,7 +40,7 @@ describe('📦 pack-n-play test', () => {
       packageDir: process.cwd(),
       sample: {
         description: 'JavaScript user can use the library',
-        ts: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
+        cjs: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
       }
     };
     await packNTest(options);
diff --git a/packages/google-cloud-accessapproval/.eslintrc.json b/packages/google-cloud-accessapproval/.eslintrc.json
index 78215349546..3e8d97ccb39 100644
--- a/packages/google-cloud-accessapproval/.eslintrc.json
+++ b/packages/google-cloud-accessapproval/.eslintrc.json
@@ -1,3 +1,4 @@
 {
-  "extends": "./node_modules/gts"
+  "extends": "./node_modules/gts",
+  "root": true
 }
diff --git a/packages/google-cloud-accessapproval/system-test/install.ts b/packages/google-cloud-accessapproval/system-test/install.ts
index 394f3362d20..f66069aa394 100644
--- a/packages/google-cloud-accessapproval/system-test/install.ts
+++ b/packages/google-cloud-accessapproval/system-test/install.ts
@@ -40,7 +40,7 @@ describe('📦 pack-n-play test', () => {
       packageDir: process.cwd(),
       sample: {
         description: 'JavaScript user can use the library',
-        ts: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
+        cjs: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
       }
     };
     await packNTest(options);
diff --git a/packages/google-cloud-advisorynotifications/.eslintrc.json b/packages/google-cloud-advisorynotifications/.eslintrc.json
index 78215349546..3e8d97ccb39 100644
--- a/packages/google-cloud-advisorynotifications/.eslintrc.json
+++ b/packages/google-cloud-advisorynotifications/.eslintrc.json
@@ -1,3 +1,4 @@
 {
-  "extends": "./node_modules/gts"
+  "extends": "./node_modules/gts",
+  "root": true
 }
diff --git a/packages/google-cloud-advisorynotifications/system-test/install.ts b/packages/google-cloud-advisorynotifications/system-test/install.ts
index 394f3362d20..f66069aa394 100644
--- a/packages/google-cloud-advisorynotifications/system-test/install.ts
+++ b/packages/google-cloud-advisorynotifications/system-test/install.ts
@@ -40,7 +40,7 @@ describe('📦 pack-n-play test', () => {
       packageDir: process.cwd(),
       sample: {
         description: 'JavaScript user can use the library',
-        ts: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
+        cjs: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
       }
     };
     await packNTest(options);
diff --git a/packages/google-cloud-alloydb/.eslintrc.json b/packages/google-cloud-alloydb/.eslintrc.json
index 78215349546..3e8d97ccb39 100644
--- a/packages/google-cloud-alloydb/.eslintrc.json
+++ b/packages/google-cloud-alloydb/.eslintrc.json
@@ -1,3 +1,4 @@
 {
-  "extends": "./node_modules/gts"
+  "extends": "./node_modules/gts",
+  "root": true
 }
diff --git a/packages/google-cloud-alloydb/system-test/install.ts b/packages/google-cloud-alloydb/system-test/install.ts
index 394f3362d20..f66069aa394 100644
--- a/packages/google-cloud-alloydb/system-test/install.ts
+++ b/packages/google-cloud-alloydb/system-test/install.ts
@@ -40,7 +40,7 @@ describe('📦 pack-n-play test', () => {
       packageDir: process.cwd(),
       sample: {
         description: 'JavaScript user can use the library',
-        ts: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
+        cjs: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
       }
     };
     await packNTest(options);
diff --git a/packages/google-cloud-apigateway/.eslintrc.json b/packages/google-cloud-apigateway/.eslintrc.json
index 78215349546..3e8d97ccb39 100644
--- a/packages/google-cloud-apigateway/.eslintrc.json
+++ b/packages/google-cloud-apigateway/.eslintrc.json
@@ -1,3 +1,4 @@
 {
-  "extends": "./node_modules/gts"
+  "extends": "./node_modules/gts",
+  "root": true
 }
diff --git a/packages/google-cloud-apigateway/system-test/install.ts b/packages/google-cloud-apigateway/system-test/install.ts
index 394f3362d20..f66069aa394 100644
--- a/packages/google-cloud-apigateway/system-test/install.ts
+++ b/packages/google-cloud-apigateway/system-test/install.ts
@@ -40,7 +40,7 @@ describe('📦 pack-n-play test', () => {
       packageDir: process.cwd(),
       sample: {
         description: 'JavaScript user can use the library',
-        ts: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
+        cjs: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
       }
     };
     await packNTest(options);
diff --git a/packages/google-cloud-apigeeconnect/.eslintrc.json b/packages/google-cloud-apigeeconnect/.eslintrc.json
index 78215349546..3e8d97ccb39 100644
--- a/packages/google-cloud-apigeeconnect/.eslintrc.json
+++ b/packages/google-cloud-apigeeconnect/.eslintrc.json
@@ -1,3 +1,4 @@
 {
-  "extends": "./node_modules/gts"
+  "extends": "./node_modules/gts",
+  "root": true
 }
diff --git a/packages/google-cloud-apigeeconnect/system-test/install.ts b/packages/google-cloud-apigeeconnect/system-test/install.ts
index 394f3362d20..f66069aa394 100644
--- a/packages/google-cloud-apigeeconnect/system-test/install.ts
+++ b/packages/google-cloud-apigeeconnect/system-test/install.ts
@@ -40,7 +40,7 @@ describe('📦 pack-n-play test', () => {
       packageDir: process.cwd(),
       sample: {
         description: 'JavaScript user can use the library',
-        ts: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
+        cjs: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
       }
     };
     await packNTest(options);
diff --git a/packages/google-cloud-apigeeregistry/.eslintrc.json b/packages/google-cloud-apigeeregistry/.eslintrc.json
index 78215349546..3e8d97ccb39 100644
--- a/packages/google-cloud-apigeeregistry/.eslintrc.json
+++ b/packages/google-cloud-apigeeregistry/.eslintrc.json
@@ -1,3 +1,4 @@
 {
-  "extends": "./node_modules/gts"
+  "extends": "./node_modules/gts",
+  "root": true
 }
diff --git a/packages/google-cloud-apigeeregistry/system-test/install.ts b/packages/google-cloud-apigeeregistry/system-test/install.ts
index 394f3362d20..f66069aa394 100644
--- a/packages/google-cloud-apigeeregistry/system-test/install.ts
+++ b/packages/google-cloud-apigeeregistry/system-test/install.ts
@@ -40,7 +40,7 @@ describe('📦 pack-n-play test', () => {
       packageDir: process.cwd(),
       sample: {
         description: 'JavaScript user can use the library',
-        ts: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
+        cjs: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
       }
     };
     await packNTest(options);
diff --git a/packages/google-cloud-apihub/.eslintrc.json b/packages/google-cloud-apihub/.eslintrc.json
index 78215349546..3e8d97ccb39 100644
--- a/packages/google-cloud-apihub/.eslintrc.json
+++ b/packages/google-cloud-apihub/.eslintrc.json
@@ -1,3 +1,4 @@
 {
-  "extends": "./node_modules/gts"
+  "extends": "./node_modules/gts",
+  "root": true
 }
diff --git a/packages/google-cloud-apihub/system-test/install.ts b/packages/google-cloud-apihub/system-test/install.ts
index 394f3362d20..f66069aa394 100644
--- a/packages/google-cloud-apihub/system-test/install.ts
+++ b/packages/google-cloud-apihub/system-test/install.ts
@@ -40,7 +40,7 @@ describe('📦 pack-n-play test', () => {
       packageDir: process.cwd(),
       sample: {
         description: 'JavaScript user can use the library',
-        ts: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
+        cjs: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
       }
     };
     await packNTest(options);
diff --git a/packages/google-cloud-apiregistry/.eslintrc.json b/packages/google-cloud-apiregistry/.eslintrc.json
index 78215349546..3e8d97ccb39 100644
--- a/packages/google-cloud-apiregistry/.eslintrc.json
+++ b/packages/google-cloud-apiregistry/.eslintrc.json
@@ -1,3 +1,4 @@
 {
-  "extends": "./node_modules/gts"
+  "extends": "./node_modules/gts",
+  "root": true
 }
diff --git a/packages/google-cloud-apiregistry/system-test/install.ts b/packages/google-cloud-apiregistry/system-test/install.ts
index 394f3362d20..f66069aa394 100644
--- a/packages/google-cloud-apiregistry/system-test/install.ts
+++ b/packages/google-cloud-apiregistry/system-test/install.ts
@@ -40,7 +40,7 @@ describe('📦 pack-n-play test', () => {
       packageDir: process.cwd(),
       sample: {
         description: 'JavaScript user can use the library',
-        ts: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
+        cjs: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
       }
     };
     await packNTest(options);
diff --git a/packages/google-cloud-apphub/.eslintrc.json b/packages/google-cloud-apphub/.eslintrc.json
index 78215349546..3e8d97ccb39 100644
--- a/packages/google-cloud-apphub/.eslintrc.json
+++ b/packages/google-cloud-apphub/.eslintrc.json
@@ -1,3 +1,4 @@
 {
-  "extends": "./node_modules/gts"
+  "extends": "./node_modules/gts",
+  "root": true
 }
diff --git a/packages/google-cloud-apphub/system-test/install.ts b/packages/google-cloud-apphub/system-test/install.ts
index 394f3362d20..f66069aa394 100644
--- a/packages/google-cloud-apphub/system-test/install.ts
+++ b/packages/google-cloud-apphub/system-test/install.ts
@@ -40,7 +40,7 @@ describe('📦 pack-n-play test', () => {
       packageDir: process.cwd(),
       sample: {
         description: 'JavaScript user can use the library',
-        ts: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
+        cjs: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
       }
     };
     await packNTest(options);
diff --git a/packages/google-cloud-asset/.eslintrc.json b/packages/google-cloud-asset/.eslintrc.json
index 78215349546..3e8d97ccb39 100644
--- a/packages/google-cloud-asset/.eslintrc.json
+++ b/packages/google-cloud-asset/.eslintrc.json
@@ -1,3 +1,4 @@
 {
-  "extends": "./node_modules/gts"
+  "extends": "./node_modules/gts",
+  "root": true
 }
diff --git a/packages/google-cloud-asset/system-test/install.ts b/packages/google-cloud-asset/system-test/install.ts
index 394f3362d20..f66069aa394 100644
--- a/packages/google-cloud-asset/system-test/install.ts
+++ b/packages/google-cloud-asset/system-test/install.ts
@@ -40,7 +40,7 @@ describe('📦 pack-n-play test', () => {
       packageDir: process.cwd(),
       sample: {
         description: 'JavaScript user can use the library',
-        ts: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
+        cjs: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
       }
     };
     await packNTest(options);
diff --git a/packages/google-cloud-assuredworkloads/.eslintrc.json b/packages/google-cloud-assuredworkloads/.eslintrc.json
index 78215349546..3e8d97ccb39 100644
--- a/packages/google-cloud-assuredworkloads/.eslintrc.json
+++ b/packages/google-cloud-assuredworkloads/.eslintrc.json
@@ -1,3 +1,4 @@
 {
-  "extends": "./node_modules/gts"
+  "extends": "./node_modules/gts",
+  "root": true
 }
diff --git a/packages/google-cloud-assuredworkloads/system-test/install.ts b/packages/google-cloud-assuredworkloads/system-test/install.ts
index 394f3362d20..f66069aa394 100644
--- a/packages/google-cloud-assuredworkloads/system-test/install.ts
+++ b/packages/google-cloud-assuredworkloads/system-test/install.ts
@@ -40,7 +40,7 @@ describe('📦 pack-n-play test', () => {
       packageDir: process.cwd(),
       sample: {
         description: 'JavaScript user can use the library',
-        ts: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
+        cjs: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
       }
     };
     await packNTest(options);
diff --git a/packages/google-cloud-auditmanager/.eslintrc.json b/packages/google-cloud-auditmanager/.eslintrc.json
index 78215349546..3e8d97ccb39 100644
--- a/packages/google-cloud-auditmanager/.eslintrc.json
+++ b/packages/google-cloud-auditmanager/.eslintrc.json
@@ -1,3 +1,4 @@
 {
-  "extends": "./node_modules/gts"
+  "extends": "./node_modules/gts",
+  "root": true
 }
diff --git a/packages/google-cloud-auditmanager/system-test/install.ts b/packages/google-cloud-auditmanager/system-test/install.ts
index 394f3362d20..f66069aa394 100644
--- a/packages/google-cloud-auditmanager/system-test/install.ts
+++ b/packages/google-cloud-auditmanager/system-test/install.ts
@@ -40,7 +40,7 @@ describe('📦 pack-n-play test', () => {
       packageDir: process.cwd(),
       sample: {
         description: 'JavaScript user can use the library',
-        ts: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
+        cjs: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
       }
     };
     await packNTest(options);
diff --git a/packages/google-cloud-automl/.eslintrc.json b/packages/google-cloud-automl/.eslintrc.json
index 78215349546..3e8d97ccb39 100644
--- a/packages/google-cloud-automl/.eslintrc.json
+++ b/packages/google-cloud-automl/.eslintrc.json
@@ -1,3 +1,4 @@
 {
-  "extends": "./node_modules/gts"
+  "extends": "./node_modules/gts",
+  "root": true
 }
diff --git a/packages/google-cloud-automl/system-test/install.ts b/packages/google-cloud-automl/system-test/install.ts
index 394f3362d20..f66069aa394 100644
--- a/packages/google-cloud-automl/system-test/install.ts
+++ b/packages/google-cloud-automl/system-test/install.ts
@@ -40,7 +40,7 @@ describe('📦 pack-n-play test', () => {
       packageDir: process.cwd(),
       sample: {
         description: 'JavaScript user can use the library',
-        ts: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
+        cjs: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
       }
     };
     await packNTest(options);
diff --git a/packages/google-cloud-baremetalsolution/.eslintrc.json b/packages/google-cloud-baremetalsolution/.eslintrc.json
index 78215349546..3e8d97ccb39 100644
--- a/packages/google-cloud-baremetalsolution/.eslintrc.json
+++ b/packages/google-cloud-baremetalsolution/.eslintrc.json
@@ -1,3 +1,4 @@
 {
-  "extends": "./node_modules/gts"
+  "extends": "./node_modules/gts",
+  "root": true
 }
diff --git a/packages/google-cloud-baremetalsolution/system-test/install.ts b/packages/google-cloud-baremetalsolution/system-test/install.ts
index 394f3362d20..f66069aa394 100644
--- a/packages/google-cloud-baremetalsolution/system-test/install.ts
+++ b/packages/google-cloud-baremetalsolution/system-test/install.ts
@@ -40,7 +40,7 @@ describe('📦 pack-n-play test', () => {
       packageDir: process.cwd(),
       sample: {
         description: 'JavaScript user can use the library',
-        ts: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
+        cjs: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
       }
     };
     await packNTest(options);
diff --git a/packages/google-cloud-batch/.eslintrc.json b/packages/google-cloud-batch/.eslintrc.json
index 78215349546..3e8d97ccb39 100644
--- a/packages/google-cloud-batch/.eslintrc.json
+++ b/packages/google-cloud-batch/.eslintrc.json
@@ -1,3 +1,4 @@
 {
-  "extends": "./node_modules/gts"
+  "extends": "./node_modules/gts",
+  "root": true
 }
diff --git a/packages/google-cloud-batch/system-test/install.ts b/packages/google-cloud-batch/system-test/install.ts
index 394f3362d20..f66069aa394 100644
--- a/packages/google-cloud-batch/system-test/install.ts
+++ b/packages/google-cloud-batch/system-test/install.ts
@@ -40,7 +40,7 @@ describe('📦 pack-n-play test', () => {
       packageDir: process.cwd(),
       sample: {
         description: 'JavaScript user can use the library',
-        ts: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
+        cjs: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
       }
     };
     await packNTest(options);
diff --git a/packages/google-cloud-beyondcorp-appconnections/.eslintrc.json b/packages/google-cloud-beyondcorp-appconnections/.eslintrc.json
index 78215349546..3e8d97ccb39 100644
--- a/packages/google-cloud-beyondcorp-appconnections/.eslintrc.json
+++ b/packages/google-cloud-beyondcorp-appconnections/.eslintrc.json
@@ -1,3 +1,4 @@
 {
-  "extends": "./node_modules/gts"
+  "extends": "./node_modules/gts",
+  "root": true
 }
diff --git a/packages/google-cloud-beyondcorp-appconnections/system-test/install.ts b/packages/google-cloud-beyondcorp-appconnections/system-test/install.ts
index 394f3362d20..f66069aa394 100644
--- a/packages/google-cloud-beyondcorp-appconnections/system-test/install.ts
+++ b/packages/google-cloud-beyondcorp-appconnections/system-test/install.ts
@@ -40,7 +40,7 @@ describe('📦 pack-n-play test', () => {
       packageDir: process.cwd(),
       sample: {
         description: 'JavaScript user can use the library',
-        ts: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
+        cjs: readFileSync('./system-test/fixtures/sample/src/index.js').toString()
       }
     };
     await packNTest(options);