diff --git a/macos.py b/macos.py
index fc0b44a..0ed175b 100644
--- a/macos.py
+++ b/macos.py
@@ -372,17 +372,14 @@ def _osascript_input(prompt: str, default: str,
     title_esc = title.replace('\\', '\\\\').replace('"', '\\"')
     r = subprocess.run(
         ['osascript', '-e',
-         f'display dialog "{prompt_esc}" '
+         f'text returned of (display dialog "{prompt_esc}" '
          f'default answer "{default_esc}" '
          f'with title "{title_esc}" '
-         f'buttons {{"Отмена", "OK"}} default button "OK"'],
+         f'buttons {{"Отмена", "OK"}} default button "OK")'],
         capture_output=True, text=True)
     if r.returncode != 0:
         return None
-    for part in r.stdout.strip().split(', '):
-        if part.startswith('text returned:'):
-            return part[len('text returned:'):]
-    return None
+    return r.stdout.rstrip("\r\n")
 
 
 def _on_edit_config(_=None):
diff --git a/packaging/merge_universal2.sh b/packaging/merge_universal2.sh
index a0092eb..d5fc4bb 100644
--- a/packaging/merge_universal2.sh
+++ b/packaging/merge_universal2.sh
@@ -1,6 +1,8 @@
 #!/bin/bash
 # Merge arm64 and x86_64 .app bundles into a universal2 .app and create DMG
-set -e
+set -euo pipefail
+
+trap 'echo "merge_universal2.sh failed at line $LINENO" >&2' ERR
 
 ARM_APP="$1"
 INTEL_APP="$2"
@@ -17,6 +19,42 @@ DIST_DIR="$PROJECT_DIR/dist"
 APP_NAME="$(basename "$OUT_APP" .app)"
 DMG_NAME="TgWsProxy"
 
+echo "Starting universal2 merge"
+echo "ARM_APP=$ARM_APP"
+echo "INTEL_APP=$INTEL_APP"
+echo "OUT_APP=$OUT_APP"
+echo "DIST_DIR=$DIST_DIR"
+
+if [ ! -d "$ARM_APP" ]; then
+    echo "ARM app bundle not found: $ARM_APP" >&2
+    exit 1
+fi
+
+if [ ! -d "$INTEL_APP" ]; then
+    echo "Intel app bundle not found: $INTEL_APP" >&2
+    exit 1
+fi
+
+has_arch() {
+    local arches="$1"
+    local target="$2"
+    for arch in $arches; do
+        if [ "$arch" = "$target" ]; then
+            return 0
+        fi
+    done
+    return 1
+}
+
+is_subset() {
+    local subset="$1"
+    local superset="$2"
+    for arch in $subset; do
+        has_arch "$superset" "$arch" || return 1
+    done
+    return 0
+}
+
 # --- Merge ---
 
 echo "Merging '$ARM_APP' + '$INTEL_APP' -> '$OUT_APP'"
@@ -33,11 +71,25 @@ find "$OUT_APP" -type f | while read -r file; do
     if file "$file" | grep -qE "Mach-O (64-bit )?executable|Mach-O (64-bit )?dynamically linked|Mach-O (64-bit )?bundle"; then
         arm_arch=$(lipo -archs "$file" 2>/dev/null || echo "")
         intel_arch=$(lipo -archs "$intel_file" 2>/dev/null || echo "")
-        if [ "$arm_arch" = "$intel_arch" ]; then
-            # same arch (e.g. local test with two arm64 copies) — skip
+        echo "Processing Mach-O: $rel"
+        echo "  arm_arch=$arm_arch"
+        echo "  intel_arch=$intel_arch"
+        if [ -z "$arm_arch" ] || [ -z "$intel_arch" ]; then
+            echo "  action=skip (unable to determine architecture)"
             continue
         fi
+        if is_subset "$intel_arch" "$arm_arch"; then
+            echo "  action=skip (arm binary already contains intel slices)"
+            continue
+        fi
+        if is_subset "$arm_arch" "$intel_arch"; then
+            echo "  action=copy-intel (intel binary is a superset)"
+            cp "$intel_file" "$file"
+            continue
+        fi
+        echo "  action=lipo-create"
         lipo -create "$file" "$intel_file" -output "$file"
+        echo "  merged_arch=$(lipo -archs "$file" 2>/dev/null || echo "")"
     fi
 done