diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 282f12a..1906476 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -41,7 +41,7 @@ jobs:
         uses: jdx/mise-action@5ac50f778e26fac95da98d50503682459e86d566 # v3.2.0
       - name: Install chezmoi
         run: |
-          GIT_USER_NAME="CI Test User" GIT_USER_EMAIL="ci@example.com" ./install.sh
+          GIT_USER_NAME="CI Test User" GIT_USER_EMAIL="ci@example.com" AWS_PROFILE="" ./install.sh
       - name: Install config validation tools
         run: |
           sudo apt-get update
@@ -50,6 +50,9 @@ jobs:
       - name: Install test dependencies
         run: |
           ./bin/setup
+      - name: Install package dependencies
+        run: |
+          bun install
       - name: Run test suite
         run: |
           ./bin/test
diff --git a/.npmrc b/.npmrc
new file mode 100644
index 0000000..4caddc9
--- /dev/null
+++ b/.npmrc
@@ -0,0 +1,15 @@
+# npm configuration for dotfiles repository
+# This repository uses bun for package management - npm should not be used directly
+
+# Prevent npm from trying to write to global directories
+# This is especially important in CI environments without root access
+global=false
+
+# Use local prefix to avoid permission issues
+prefix=${HOME}/.local/npm-global
+
+# Disable automatic installation of global packages
+install-links=false
+
+# Disable update notifier in CI
+update-notifier=false
diff --git a/install.sh b/install.sh
index 00cc6a6..f58cc3b 100755
--- a/install.sh
+++ b/install.sh
@@ -24,6 +24,9 @@
 #   VERIFY_SIGNATURES: Disable signature verification (default: true)
 #   SKIP_PACKAGE_MANAGER: Force binary download (default: false)
 #   DEBUG: Enable debug output
+#   GIT_USER_NAME: Git user name (bypasses prompt if set)
+#   GIT_USER_EMAIL: Git user email (bypasses prompt if set)
+#   AWS_PROFILE: AWS profile name (bypasses prompt if set, empty string for none)
 #
 # EXAMPLE USAGE:
 #   $ git clone https://github.com/ivy/dotfiles.git
@@ -116,6 +119,9 @@ ENVIRONMENT VARIABLES:
     VERIFY_SIGNATURES       Disable signature verification (default: true)
     SKIP_PACKAGE_MANAGER    Force binary download (default: false)
     DEBUG                   Enable debug output
+    GIT_USER_NAME           Git user name (bypasses prompt if set)
+    GIT_USER_EMAIL          Git user email (bypasses prompt if set)
+    AWS_PROFILE             AWS profile name (bypasses prompt if set, use empty string for none)
 
 EXAMPLES:
     ./install.sh                                    # Install normally
@@ -691,6 +697,10 @@ main() {
   if [ -n "${GIT_USER_EMAIL:-}" ]; then
     set -- "$@" --promptString "Git user.email=$GIT_USER_EMAIL"
   fi
+  # Handle AWS_PROFILE - can be set to empty string to bypass prompt in CI
+  if [ -n "${AWS_PROFILE+x}" ]; then
+    set -- "$@" --promptString "aws_profile=$AWS_PROFILE"
+  fi
   
   # Add any additional passthrough arguments
   if [ -n "$CHEZMOI_ARGS" ]; then