diff --git a/apps/web/next.config.js b/apps/web/next.config.js
index 134501f7e8..9c85b73600 100644
--- a/apps/web/next.config.js
+++ b/apps/web/next.config.js
@@ -84,6 +84,15 @@ const nextConfig = {
       fs: false,
     };
 
+    /**
+     * TODO: Find more possible barrels for this project.
+     *  @see https://github.com/vercel/next.js/issues/12557#issuecomment-1196931845
+     **/
+    config.module.rules.push({
+      test: [/lib\/.*.tsx?/i],
+      sideEffects: false,
+    });
+
     return config;
   },
   async rewrites() {
diff --git a/packages/app-store-cli/package.json b/packages/app-store-cli/package.json
index 218b574844..9c40f2cf8f 100644
--- a/packages/app-store-cli/package.json
+++ b/packages/app-store-cli/package.json
@@ -1,5 +1,6 @@
 {
   "name": "@calcom/app-store-cli",
+  "sideEffects": false,
   "version": "0.0.0",
   "bin": "dist/cli.js",
   "engines": {
diff --git a/packages/app-store/package.json b/packages/app-store/package.json
index 9359563e2d..e16776072f 100644
--- a/packages/app-store/package.json
+++ b/packages/app-store/package.json
@@ -1,5 +1,6 @@
 {
   "name": "@calcom/app-store",
+  "sideEffects": false,
   "version": "0.0.0",
   "main": "./index.ts",
   "files": [
diff --git a/packages/config/package.json b/packages/config/package.json
index 4679bf9547..c85fd60a2a 100644
--- a/packages/config/package.json
+++ b/packages/config/package.json
@@ -1,5 +1,6 @@
 {
   "name": "@calcom/config",
+  "sideEffects": false,
   "version": "0.0.0",
   "main": "index.js",
   "license": "MIT",
diff --git a/packages/core/package.json b/packages/core/package.json
index ed5fdf1929..39fd7e89a4 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -1,5 +1,6 @@
 {
   "name": "@calcom/core",
+  "sideEffects": false,
   "description": "Cal.com core functionality",
   "version": "0.0.0",
   "private": true,
diff --git a/packages/emails/package.json b/packages/emails/package.json
index 55b1716282..3c514f96c7 100644
--- a/packages/emails/package.json
+++ b/packages/emails/package.json
@@ -1,5 +1,6 @@
 {
   "name": "@calcom/emails",
+  "sideEffects": false,
   "version": "0.0.0",
   "private": true,
   "scripts": {},
diff --git a/packages/embeds/embed-react/package.json b/packages/embeds/embed-react/package.json
index 0e6acfc8a1..a6206a7b89 100644
--- a/packages/embeds/embed-react/package.json
+++ b/packages/embeds/embed-react/package.json
@@ -1,5 +1,6 @@
 {
   "name": "@calcom/embed-react",
+  "sideEffects": false,
   "version": "1.0.9",
   "description": "Embed Cal Link as a React Component",
   "license": "SEE LICENSE IN LICENSE",
diff --git a/packages/embeds/embed-snippet/package.json b/packages/embeds/embed-snippet/package.json
index 131f8a1d1f..770723c1f0 100644
--- a/packages/embeds/embed-snippet/package.json
+++ b/packages/embeds/embed-snippet/package.json
@@ -1,5 +1,6 @@
 {
   "name": "@calcom/embed-snippet",
+  "sideEffects": false,
   "version": "1.0.4",
   "main": "./dist/snippet.umd.js",
   "module": "./dist/snippet.es.js",
diff --git a/packages/eslint-plugin/package.json b/packages/eslint-plugin/package.json
index 618188989d..8e4f475aed 100644
--- a/packages/eslint-plugin/package.json
+++ b/packages/eslint-plugin/package.json
@@ -1,5 +1,6 @@
 {
   "name": "@calcom/eslint-plugin-eslint",
+  "sideEffects": false,
   "version": "0.1.0",
   "main": "./src/index.js",
   "dependencies": {
diff --git a/packages/features/package.json b/packages/features/package.json
index 33a43270a1..bb27e72c17 100644
--- a/packages/features/package.json
+++ b/packages/features/package.json
@@ -1,5 +1,6 @@
 {
   "name": "@calcom/features",
+  "sideEffects": false,
   "description": "Cal.com's main collocation of features",
   "authors": "Cal.com, Inc.",
   "version": "1.0.0",
diff --git a/packages/lib/package.json b/packages/lib/package.json
index 74431fc664..38921982a0 100644
--- a/packages/lib/package.json
+++ b/packages/lib/package.json
@@ -1,5 +1,6 @@
 {
   "name": "@calcom/lib",
+  "sideEffects": false,
   "version": "0.0.0",
   "main": "./index.ts",
   "types": "./index.ts",
diff --git a/packages/trpc/package.json b/packages/trpc/package.json
index bfc54f4c48..72f565d1ef 100644
--- a/packages/trpc/package.json
+++ b/packages/trpc/package.json
@@ -1,5 +1,6 @@
 {
   "name": "@calcom/trpc",
+  "sideEffects": false,
   "description": "Shared tRPC library for Cal.com",
   "authors": "zomars",
   "version": "1.0.0",
diff --git a/packages/tsconfig/package.json b/packages/tsconfig/package.json
index 983d14ee1c..a871fd300c 100644
--- a/packages/tsconfig/package.json
+++ b/packages/tsconfig/package.json
@@ -1,5 +1,6 @@
 {
   "name": "@calcom/tsconfig",
+  "sideEffects": false,
   "version": "0.0.0",
   "private": true,
   "main": "index.js",
diff --git a/packages/ui/package.json b/packages/ui/package.json
index e03b2769f2..b1b67ef9aa 100644
--- a/packages/ui/package.json
+++ b/packages/ui/package.json
@@ -1,5 +1,6 @@
 {
   "name": "@calcom/ui",
+  "sideEffects": false,
   "version": "0.0.0",
   "main": "./index.tsx",
   "types": "./index.tsx",