diff --git a/mac/scripts/create-dmg.sh b/mac/scripts/create-dmg.sh
index 14da1101..c425f2d3 100755
--- a/mac/scripts/create-dmg.sh
+++ b/mac/scripts/create-dmg.sh
@@ -66,16 +66,107 @@ cp -R "$APP_PATH" "$DMG_TEMP/"
 # Create symbolic link to Applications folder
 ln -s /Applications "$DMG_TEMP/Applications"
 
-# Create DMG
+# Create initial DMG as read-write
+DMG_RW_PATH="${DMG_PATH%.dmg}-rw.dmg"
 hdiutil create \
     -volname "$DMG_VOLUME_NAME" \
     -srcfolder "$DMG_TEMP" \
     -ov \
-    -format UDZO \
-    "$DMG_PATH"
+    -format UDRW \
+    -size 200m \
+    "$DMG_RW_PATH"
+
+# Clean up temp folder
+rm -rf "$DMG_TEMP"
+
+echo "Applying custom styling to DMG..."
+
+# Mount the DMG
+MOUNT_POINT="/Volumes/$DMG_VOLUME_NAME"
+hdiutil attach "$DMG_RW_PATH" -mountpoint "$MOUNT_POINT" -nobrowse
+
+
+# Copy background image
+mkdir -p "$MOUNT_POINT/.background"
+cp "$PROJECT_DIR/assets/dmg-background-small.png" "$MOUNT_POINT/.background/background.png"
+
+# Set custom volume icon
+if [[ -f "$PROJECT_DIR/assets/appicon-512.png" ]]; then
+    # Convert PNG to ICNS for volume icon
+    sips -s format icns "$PROJECT_DIR/assets/appicon-512.png" --out "$MOUNT_POINT/.VolumeIcon.icns" >/dev/null 2>&1
+    SetFile -a C "$MOUNT_POINT" 2>/dev/null || true
+fi
+
+# Apply window styling with AppleScript
+osascript <<EOF
+tell application "Finder"
+    tell disk "$DMG_VOLUME_NAME"
+        open
+        
+        -- Get the window
+        set current view of container window to icon view
+        set toolbar visible of container window to false
+        set statusbar visible of container window to false
+        
+        -- Set window bounds (centered, 500x320)
+        set the bounds of container window to {400, 100, 900, 420}
+        
+        -- Configure icon view options
+        set viewOptions to the icon view options of container window
+        set arrangement of viewOptions to not arranged
+        set icon size of viewOptions to 128
+        
+        -- Set background
+        set background picture of viewOptions to file ".background:background.png"
+        
+        -- Set text color to white
+        set text size of viewOptions to 12
+        set label position of viewOptions to bottom
+        
+        -- Position items
+        set position of item "VibeTunnel.app" of container window to {125, 160}
+        set position of item "Applications" of container window to {375, 160}
+        
+        -- Set extended attributes for better appearance
+        set shows item info of viewOptions to false
+        set shows icon preview of viewOptions to true
+        
+        
+        -- Update without registering applications
+        update without registering applications
+        delay 2
+        
+        -- Close and reopen to ensure settings stick
+        close
+        open
+        delay 1
+    end tell
+end tell
+EOF
+
+# Give Finder time to update
+sleep 3
+
+# Force close Finder window to ensure settings are saved
+osascript -e 'tell application "Finder" to close every window'
+
+
+# Unmount with retry
+echo "Unmounting DMG..."
+for i in {1..5}; do
+    if hdiutil detach "$MOUNT_POINT" -quiet 2>/dev/null; then
+        break
+    fi
+    echo "  Retry $i/5..."
+    sleep 2
+done
+
+# Convert to compressed read-only DMG
+echo "Converting to final DMG format..."
+hdiutil convert "$DMG_RW_PATH" -format ULMO -o "$DMG_PATH" -ov
 
 # Clean up
-rm -rf "$DMG_TEMP"
+rm -f "$DMG_RW_PATH"
 
 # === EXTENSIVE ENVIRONMENT DEBUGGING ===
 echo "=== Environment Debug Information ==="
diff --git a/mac/scripts/download-bun-binaries.sh b/mac/scripts/download-bun-binaries.sh
index b4e6bfcb..d7c96b95 100755
--- a/mac/scripts/download-bun-binaries.sh
+++ b/mac/scripts/download-bun-binaries.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 #
-# Download pre-built Bun binaries for both architectures
-# This allows building universal support without needing both Mac types
+# Download pre-built Bun binaries for ARM64
+# VibeTunnel only supports Apple Silicon Macs
 #
 
 set -euo pipefail
@@ -21,11 +21,11 @@ PREBUILTS_DIR="$MAC_DIR/Resources/BunPrebuilts"
 # Bun version - update this as needed
 BUN_VERSION="1.1.18"
 
-echo -e "${BLUE}Downloading Bun binaries for both architectures...${NC}"
+echo -e "${BLUE}Downloading Bun binaries for ARM64...${NC}"
 echo "Bun version: $BUN_VERSION"
 
-# Create directories
-mkdir -p "$PREBUILTS_DIR"/{arm64,x86_64}
+# Create directory
+mkdir -p "$PREBUILTS_DIR"/arm64
 
 # Function to download and extract Bun
 download_bun() {
@@ -74,13 +74,11 @@ download_bun() {
     return 0
 }
 
-# Download both architectures
+# Download ARM64 only
 download_bun "arm64" "aarch64" || echo -e "${YELLOW}Warning: Failed to download arm64 Bun${NC}"
-download_bun "x86_64" "x64" || echo -e "${YELLOW}Warning: Failed to download x86_64 Bun${NC}"
 
-echo -e "\n${BLUE}Note: You still need the native modules (pty.node and spawn-helper) for each architecture.${NC}"
-echo "These must be built on the respective architecture."
+echo -e "\n${BLUE}Note: You still need the native modules (pty.node and spawn-helper).${NC}"
+echo "These must be built on Apple Silicon."
 echo ""
 echo "Current status:"
-ls -lh "$PREBUILTS_DIR"/arm64/vibetunnel 2>/dev/null && echo "  ✓ arm64 Bun binary downloaded" || echo "  ✗ arm64 Bun binary missing"
-ls -lh "$PREBUILTS_DIR"/x86_64/vibetunnel 2>/dev/null && echo "  ✓ x86_64 Bun binary downloaded" || echo "  ✗ x86_64 Bun binary missing"
\ No newline at end of file
+ls -lh "$PREBUILTS_DIR"/arm64/vibetunnel 2>/dev/null && echo "  ✓ arm64 Bun binary downloaded" || echo "  ✗ arm64 Bun binary missing"
\ No newline at end of file
diff --git a/mac/scripts/release.sh b/mac/scripts/release.sh
index 65c8c8cb..6847d6b6 100755
--- a/mac/scripts/release.sh
+++ b/mac/scripts/release.sh
@@ -327,9 +327,9 @@ else
     export IS_PRERELEASE_BUILD=NO
 fi
 
-# Build universal binary
+# Build ARM64 binary
 echo ""
-echo "🔨 Building universal binary (arm64 + x86_64)..."
+echo "🔨 Building ARM64 binary..."
 "$SCRIPT_DIR/build.sh" --configuration Release
 
 # Verify build
@@ -346,14 +346,15 @@ if [[ "$BUILT_VERSION" != "$BUILD_NUMBER" ]]; then
     exit 1
 fi
 
-# Verify it's a universal binary
+# Verify it's an ARM64 binary
 APP_BINARY="$APP_PATH/Contents/MacOS/VibeTunnel"
 if [[ -f "$APP_BINARY" ]]; then
     ARCH_INFO=$(lipo -info "$APP_BINARY" 2>/dev/null || echo "")
-    if [[ "$ARCH_INFO" == *"x86_64"* ]] && [[ "$ARCH_INFO" == *"arm64"* ]]; then
-        echo "✅ Universal binary created (arm64 + x86_64)"
+    if [[ "$ARCH_INFO" == *"arm64"* ]]; then
+        echo "✅ ARM64 binary created"
     else
-        echo -e "${YELLOW}⚠️  Warning: Binary may not be universal: $ARCH_INFO${NC}"
+        echo -e "${RED}❌ Error: Binary is not ARM64: $ARCH_INFO${NC}"
+        exit 1
     fi
 fi
 
diff --git a/mac/scripts/setup-bun-prebuilts.sh b/mac/scripts/setup-bun-prebuilts.sh
index d5182d12..eaea6415 100755
--- a/mac/scripts/setup-bun-prebuilts.sh
+++ b/mac/scripts/setup-bun-prebuilts.sh
@@ -22,13 +22,13 @@ MAC_DIR="$SCRIPT_DIR/.."
 WEB_DIR="$PROJECT_ROOT/web"
 PREBUILTS_DIR="$MAC_DIR/Resources/BunPrebuilts"
 
-# Get current architecture
+# VibeTunnel only supports ARM64
 CURRENT_ARCH=$(uname -m)
-if [ "$CURRENT_ARCH" = "x86_64" ]; then
-    ARCH_DIR="x86_64"
-else
-    ARCH_DIR="arm64"
+if [ "$CURRENT_ARCH" != "arm64" ]; then
+    echo -e "${RED}Error: VibeTunnel requires Apple Silicon (ARM64)${NC}"
+    exit 1
 fi
+ARCH_DIR="arm64"
 
 echo -e "${BLUE}Setting up Bun prebuilt binaries...${NC}"
 echo "Current architecture: $CURRENT_ARCH"
@@ -72,7 +72,7 @@ build_current_arch() {
 check_status() {
     echo -e "\n${BLUE}Prebuilt binaries status:${NC}"
     
-    for arch in arm64 x86_64; do
+    for arch in arm64; do
         echo -n "  $arch: "
         if [ -f "$PREBUILTS_DIR/$arch/vibetunnel" ] && \
            [ -f "$PREBUILTS_DIR/$arch/pty.node" ] && \
@@ -100,8 +100,8 @@ case "${1:-build}" in
         ;;
     clean)
         echo -e "${YELLOW}Cleaning prebuilt binaries...${NC}"
-        rm -rf "$PREBUILTS_DIR"/{arm64,x86_64}
-        mkdir -p "$PREBUILTS_DIR"/{arm64,x86_64}
+        rm -rf "$PREBUILTS_DIR"/arm64
+        mkdir -p "$PREBUILTS_DIR"/arm64
         echo -e "${GREEN}✓ Cleaned${NC}"
         ;;
     *)
@@ -113,5 +113,4 @@ case "${1:-build}" in
         ;;
 esac
 
-echo -e "\n${BLUE}Note:${NC} To support both architectures, run this script on both"
-echo "      an Intel Mac and an Apple Silicon Mac, then commit the results."
\ No newline at end of file
+echo -e "\n${BLUE}Note:${NC} VibeTunnel requires Apple Silicon (M1/M2/M3) Macs."
\ No newline at end of file