diff --git a/.github/workflows/build-and-publish.yml b/.github/workflows/build-and-publish.yml
index 1264579247..b847b2b870 100644
--- a/.github/workflows/build-and-publish.yml
+++ b/.github/workflows/build-and-publish.yml
@@ -33,10 +33,10 @@ jobs:
       - name: 'Install dependencies'
         run: 'npm ci'
 
-      - name: 'Configure npm for GitHub Packages'
-        run: |
-          echo "@google-gemini:registry=https://npm.pkg.github.com/" > .npmrc
-          echo "//npm.pkg.github.com/:_authToken=${{ secrets.GITHUB_TOKEN }}" >> .npmrc
+      - name: 'Setup NPMRC'
+        uses: ./.github/actions/setup-npmrc
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: 'Bundle'
         run: 'npm run bundle'
diff --git a/.github/workflows/e2e.yml b/.github/workflows/e2e.yml
index 5d63c1e1fe..1661f25b84 100644
--- a/.github/workflows/e2e.yml
+++ b/.github/workflows/e2e.yml
@@ -9,6 +9,10 @@ on:
         description: 'The version of the published package'
         required: true
         type: 'string'
+      cli-package-name:
+        description: 'The name of the CLI package to install'
+        required: true
+        type: 'string'
     secrets:
       GEMINI_API_KEY:
         required: true
@@ -31,7 +35,6 @@ jobs:
           - 'sandbox:docker'
         node-version:
           - '20.x'
-
     steps:
       - name: 'Checkout (fork)'
         uses: 'actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955' # ratchet:actions/checkout@v5
@@ -46,15 +49,13 @@ jobs:
         with:
           ref: '${{ github.event.inputs.branch_ref || github.ref }}'
 
-      - name: 'Configure npm for GitHub Packages'
-        run: |
-          echo "@google-gemini:registry=https://npm.pkg.github.com/" > .npmrc
-          echo "//npm.pkg.github.com/:_authToken=${{ secrets.GITHUB_TOKEN }}" >> .npmrc
+      - name: 'Setup NPMRC'
+        uses: ./.github/actions/setup-npmrc
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: 'Install dependencies'
-        run: 'npm install @google-gemini/gemini-cli@${{ inputs.version }}'
-
-      - name: 'Set up Docker'
+        run: 'npm install ${{ inputs.cli-package-name }}@${{ inputs.version }}'
         if: "matrix.sandbox == 'sandbox:docker'"
         uses: 'docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435' # ratchet:docker/setup-buildx-action@v3
 
@@ -100,10 +101,10 @@ jobs:
         with:
           node-version: '20.x'
 
-      - name: 'Configure npm for GitHub Packages'
-        run: |
-          echo "@google-gemini:registry=https://npm.pkg.github.com/" > .npmrc
-          echo "//npm.pkg.github.com/:_authToken=${{ secrets.GITHUB_TOKEN }}" >> .npmrc
+      - name: 'Setup NPMRC'
+        uses: ./.github/actions/setup-npmrc
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: 'Install dependencies'
         run: 'npm install @google-gemini/gemini-cli@${{ inputs.version }}'
@@ -171,14 +172,13 @@ jobs:
           npm config set registry https://registry.npmjs.org/
         shell: 'pwsh'
 
-      - name: 'Configure npm for GitHub Packages'
-        run: |
-          echo "@google-gemini:registry=https://npm.pkg.github.com/" > .npmrc
-          echo "//npm.pkg.github.com/:_authToken=${{ secrets.GITHUB_TOKEN }}" >> .npmrc
-        shell: 'pwsh'
+      - name: 'Setup NPMRC'
+        uses: ./.github/actions/setup-npmrc
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: 'Install dependencies'
-        run: 'npm install @google-gemini/gemini-cli@${{ inputs.version }}'
+        run: 'npm install ${{ inputs.cli-package-name }}@${{ inputs.version }}'
         shell: 'pwsh'
 
       - name: 'Run E2E tests'
@@ -216,4 +216,4 @@ jobs:
             echo "One or more E2E jobs failed."
             exit 1
           fi
-          echo "All required E2E jobs passed!"
+          echo "All required E2E jobs passed!"
\ No newline at end of file
diff --git a/.github/workflows/orchestrator.yml b/.github/workflows/orchestrator.yml
index 5d6357a0c6..8b8fd2a113 100644
--- a/.github/workflows/orchestrator.yml
+++ b/.github/workflows/orchestrator.yml
@@ -47,8 +47,10 @@ jobs:
     name: 'E2E Checks'
     needs: 'build-and-publish'
     uses: './.github/workflows/e2e.yml'
+    environment: dev
     with:
       version: '${{ needs.build-and-publish.outputs.version }}'
+      cli-package-name: '${{ vars.CLI_PACKAGE_NAME }}'
     secrets:
       GEMINI_API_KEY: '${{ secrets.GEMINI_API_KEY }}'
 
diff --git a/scripts/configure-registry.js b/scripts/configure-registry.js
index 3a2034ac1c..bb02d35b89 100644
--- a/scripts/configure-registry.js
+++ b/scripts/configure-registry.js
@@ -4,6 +4,22 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
+/**
+ * @fileoverview This script automates the configuration of the user's
+ * global .npmrc file to switch between the production npm registry (npmjs.org)
+ * and the development registry (GitHub Packages).
+ *
+ * Rationale:
+ * While a developer could manually configure their .npmrc file, this script
+ * provides a consistent, automated, and less error-prone way to manage
+ * registry configurations. It simplifies the process of switching between
+ * consuming production packages and pre-release packages for development
+ * and testing, which is a common workflow in this project.
+ *
+ * The script also handles backing up and restoring the user's existing
+ * .npmrc file, preventing accidental data loss.
+ */
+
 import fs from 'node:fs';
 import path from 'node:path';
 import os from 'node:os';