diff --git a/.gitignore b/.gitignore
index 0d96d9e327..3023e8b08f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,6 +8,7 @@ local.log
 specs.log
 /test-report/
 browserstack.err
+package.tgz
 
 # https://yarnpkg.com/getting-started/qa#which-files-should-be-gitignored
 .pnp.*
diff --git a/package.json b/package.json
index 8adc5c0824..b4c4cf359e 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
   ],
   "scripts": {
     "postinstall": "scripts/cli init_submodule",
-    "build": "lerna run build --stream",
+    "build": "lerna run build --stream && lerna run pack --stream",
     "build:bundle": "lerna run build:bundle --stream",
     "build:app": "cd test/app && rm -rf node_modules && yarn && yarn build",
     "format": "prettier --check .",
diff --git a/packages/core/package.json b/packages/core/package.json
index c19fa15305..2672f44fb3 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -7,6 +7,7 @@
   "types": "cjs/index.d.ts",
   "sideEffects": false,
   "scripts": {
+    "pack": "yarn pack",
     "build": "run-p build:cjs build:esm",
     "build:cjs": "rm -rf cjs && tsc -p tsconfig.cjs.json && yarn replace-build-env cjs",
     "build:esm": "rm -rf esm && tsc -p tsconfig.esm.json && yarn replace-build-env esm",
diff --git a/packages/logs/package.json b/packages/logs/package.json
index 1d47a0870b..06d2038292 100644
--- a/packages/logs/package.json
+++ b/packages/logs/package.json
@@ -6,6 +6,7 @@
   "module": "esm/entries/main.js",
   "types": "cjs/entries/main.d.ts",
   "scripts": {
+    "pack": "yarn pack",
     "build": "run-p build:cjs build:esm build:bundle",
     "build:bundle": "rm -rf bundle && SDK_SETUP=cdn webpack --mode=production",
     "build:cjs": "rm -rf cjs && tsc -p tsconfig.cjs.json && yarn replace-build-env cjs",
diff --git a/packages/rum-core/package.json b/packages/rum-core/package.json
index e4b5db7617..95df789f69 100644
--- a/packages/rum-core/package.json
+++ b/packages/rum-core/package.json
@@ -6,6 +6,7 @@
   "module": "esm/index.js",
   "types": "cjs/index.d.ts",
   "scripts": {
+    "pack": "yarn pack",
     "build": "run-p build:cjs build:esm",
     "build:cjs": "rm -rf cjs && tsc -p tsconfig.cjs.json && yarn replace-build-env cjs",
     "build:esm": "rm -rf esm && tsc -p tsconfig.esm.json && yarn replace-build-env esm",
diff --git a/packages/rum-react/package.json b/packages/rum-react/package.json
index 3a9e06416a..6390ca7c2f 100644
--- a/packages/rum-react/package.json
+++ b/packages/rum-react/package.json
@@ -6,6 +6,7 @@
   "module": "esm/entries/main.js",
   "types": "cjs/entries/main.d.ts",
   "scripts": {
+    "pack": "yarn pack",
     "build": "run-p build:cjs build:esm",
     "build:cjs": "rm -rf cjs && tsc -p tsconfig.cjs.json --noCheck",
     "build:esm": "rm -rf esm && tsc -p tsconfig.esm.json --noCheck",
diff --git a/packages/rum-slim/package.json b/packages/rum-slim/package.json
index 7b311764b3..b41aed60c6 100644
--- a/packages/rum-slim/package.json
+++ b/packages/rum-slim/package.json
@@ -6,6 +6,7 @@
   "module": "esm/entries/main.js",
   "types": "cjs/entries/main.d.ts",
   "scripts": {
+    "pack": "yarn pack",
     "build": "run-p build:cjs build:esm build:bundle",
     "build:bundle": "rm -rf bundle && SDK_SETUP=cdn webpack --mode=production",
     "build:cjs": "rm -rf cjs && tsc -p tsconfig.cjs.json",
diff --git a/packages/rum/package.json b/packages/rum/package.json
index 93461b09d6..9b4d3a4d3b 100644
--- a/packages/rum/package.json
+++ b/packages/rum/package.json
@@ -6,6 +6,7 @@
   "module": "esm/entries/main.js",
   "types": "cjs/entries/main.d.ts",
   "scripts": {
+    "pack": "yarn pack",
     "build": "run-p build:cjs build:esm build:bundle",
     "build:bundle": "rm -rf bundle && SDK_SETUP=cdn webpack --mode=production",
     "build:cjs": "rm -rf cjs && tsc -p tsconfig.cjs.json && yarn replace-build-env cjs",
diff --git a/packages/worker/package.json b/packages/worker/package.json
index db6f23ef05..fbfe5944a8 100644
--- a/packages/worker/package.json
+++ b/packages/worker/package.json
@@ -4,6 +4,7 @@
   "license": "Apache-2.0",
   "main": "bundle/worker.js",
   "scripts": {
+    "pack": "yarn pack",
     "build": "rm -rf bundle && webpack --mode=production"
   },
   "dependencies": {
diff --git a/test/app/package.json b/test/app/package.json
index fa6225a366..8daab2e050 100644
--- a/test/app/package.json
+++ b/test/app/package.json
@@ -7,16 +7,10 @@
     "compat:ssr": "webpack --config ./webpack.ssr.js && node dist/app.js"
   },
   "dependencies": {
-    "@datadog/browser-core": "portal:../../packages/core",
-    "@datadog/browser-logs": "portal:../../packages/logs",
-    "@datadog/browser-rum": "portal:../../packages/rum",
-    "@datadog/browser-rum-core": "portal:../../packages/rum-core"
-  },
-  "resolutions": {
-    "@datadog/browser-core": "portal:../../packages/core",
-    "@datadog/browser-rum-core": "portal:../../packages/rum-core",
-    "@datadog/browser-rum": "portal:../../packages/rum",
-    "@datadog/browser-worker": "portal:../../packages/worker"
+    "@datadog/browser-core": "file:../../packages/core/package.tgz",
+    "@datadog/browser-logs": "file:../../packages/logs/package.tgz",
+    "@datadog/browser-rum": "file:../../packages/rum/package.tgz",
+    "@datadog/browser-rum-core": "file:../../packages/rum-core/package.tgz"
   },
   "devDependencies": {
     "ts-loader": "6.2.1",
diff --git a/test/app/yarn.lock b/test/app/yarn.lock
index 4c6549fde1..aa492f49a5 100644
--- a/test/app/yarn.lock
+++ b/test/app/yarn.lock
@@ -5,15 +5,23 @@ __metadata:
   version: 8
   cacheKey: 10c0
 
-"@datadog/browser-core@portal:../../packages/core::locator=app%40workspace%3A.":
-  version: 0.0.0-use.local
-  resolution: "@datadog/browser-core@portal:../../packages/core::locator=app%40workspace%3A."
+"@datadog/browser-core@file:../../packages/core/package.tgz::locator=app%40workspace%3A.":
+  version: 6.2.1
+  resolution: "@datadog/browser-core@file:../../packages/core/package.tgz#../../packages/core/package.tgz::hash=067fa5&locator=app%40workspace%3A."
+  checksum: 10c0/3c73271f7a102c1a92e456c025b97bd23969444607bd763170c92d97f6a258230a1a1bb606a73052cb4bc6293e3680549d5c535e9f69a32bfe4b5b88876e120e
   languageName: node
-  linkType: soft
+  linkType: hard
 
-"@datadog/browser-logs@portal:../../packages/logs::locator=app%40workspace%3A.":
-  version: 0.0.0-use.local
-  resolution: "@datadog/browser-logs@portal:../../packages/logs::locator=app%40workspace%3A."
+"@datadog/browser-core@npm:6.2.1":
+  version: 6.2.1
+  resolution: "@datadog/browser-core@npm:6.2.1"
+  checksum: 10c0/78217a2f0e2202145ad51eefa96d5851300c2d232283a9fc24b8f31bdd6f84872959264ae529b8481c2b8c2bba6ce6c7b3d293efbe1d98ed9198b2b5bdab9ac2
+  languageName: node
+  linkType: hard
+
+"@datadog/browser-logs@file:../../packages/logs/package.tgz::locator=app%40workspace%3A.":
+  version: 6.2.1
+  resolution: "@datadog/browser-logs@file:../../packages/logs/package.tgz#../../packages/logs/package.tgz::hash=1763ea&locator=app%40workspace%3A."
   dependencies:
     "@datadog/browser-core": "npm:6.2.1"
   peerDependencies:
@@ -21,20 +29,31 @@ __metadata:
   peerDependenciesMeta:
     "@datadog/browser-rum":
       optional: true
+  checksum: 10c0/ca84ca82ae339c8f97a02be30a7bf5645e6f79d810d9e0ce5253cc8b72873335d813a5a3b4a7af5b2af1c7bce39a33c437850094aa2e554395d8c50020d2509c
   languageName: node
-  linkType: soft
+  linkType: hard
 
-"@datadog/browser-rum-core@portal:../../packages/rum-core::locator=app%40workspace%3A.":
-  version: 0.0.0-use.local
-  resolution: "@datadog/browser-rum-core@portal:../../packages/rum-core::locator=app%40workspace%3A."
+"@datadog/browser-rum-core@file:../../packages/rum-core/package.tgz::locator=app%40workspace%3A.":
+  version: 6.2.1
+  resolution: "@datadog/browser-rum-core@file:../../packages/rum-core/package.tgz#../../packages/rum-core/package.tgz::hash=e8e8a8&locator=app%40workspace%3A."
   dependencies:
     "@datadog/browser-core": "npm:6.2.1"
+  checksum: 10c0/6c570e4948d4fe711252e17559902c7088b057d22b6f01cb57eaba99949dc3c015c95a561480efd8e0932aaaaf1a2b888088ff2d10a46d52904f58c29c32d85f
   languageName: node
-  linkType: soft
+  linkType: hard
 
-"@datadog/browser-rum@portal:../../packages/rum::locator=app%40workspace%3A.":
-  version: 0.0.0-use.local
-  resolution: "@datadog/browser-rum@portal:../../packages/rum::locator=app%40workspace%3A."
+"@datadog/browser-rum-core@npm:6.2.1":
+  version: 6.2.1
+  resolution: "@datadog/browser-rum-core@npm:6.2.1"
+  dependencies:
+    "@datadog/browser-core": "npm:6.2.1"
+  checksum: 10c0/68f0807c75b898c9253c19aa9023796ec5115120c833f460fc3de4c02b809153e7ebdff301e41f0c0952361a3e058a0a7f1bc311f5e6ac73c0532221b75d9075
+  languageName: node
+  linkType: hard
+
+"@datadog/browser-rum@file:../../packages/rum/package.tgz::locator=app%40workspace%3A.":
+  version: 6.2.1
+  resolution: "@datadog/browser-rum@file:../../packages/rum/package.tgz#../../packages/rum/package.tgz::hash=5420f8&locator=app%40workspace%3A."
   dependencies:
     "@datadog/browser-core": "npm:6.2.1"
     "@datadog/browser-rum-core": "npm:6.2.1"
@@ -43,8 +62,9 @@ __metadata:
   peerDependenciesMeta:
     "@datadog/browser-logs":
       optional: true
+  checksum: 10c0/fef98e20733f50f687b7908cd6602b8ec390c9c7ae16c38ad5aa36f66a87866ec4ba69f42ad359e14a5f4e9331fd95bfe7272d627a4e745dcbe9ad60cf65894f
   languageName: node
-  linkType: soft
+  linkType: hard
 
 "@jridgewell/gen-mapping@npm:^0.3.5":
   version: 0.3.5
@@ -352,10 +372,10 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "app@workspace:."
   dependencies:
-    "@datadog/browser-core": "portal:../../packages/core"
-    "@datadog/browser-logs": "portal:../../packages/logs"
-    "@datadog/browser-rum": "portal:../../packages/rum"
-    "@datadog/browser-rum-core": "portal:../../packages/rum-core"
+    "@datadog/browser-core": "file:../../packages/core/package.tgz"
+    "@datadog/browser-logs": "file:../../packages/logs/package.tgz"
+    "@datadog/browser-rum": "file:../../packages/rum/package.tgz"
+    "@datadog/browser-rum-core": "file:../../packages/rum-core/package.tgz"
     ts-loader: "npm:6.2.1"
     typescript: "npm:3.8.2"
     webpack: "npm:5.94.0"