diff --git a/Package.swift b/Package.swift
index 120bae1..963fec4 100644
--- a/Package.swift
+++ b/Package.swift
@@ -18,7 +18,7 @@ let package = Package(
             publicHeadersPath: "include",
             linkerSettings: [
                 .linkedFramework("Virtualization"),
-            ],
+            ]
         ),
         // Swift executable
         .executableTarget(
@@ -34,7 +34,7 @@ let package = Package(
             linkerSettings: [
                 .linkedFramework("Virtualization"),
                 .linkedFramework("AppKit"),
-            ],
-        ),
-    ],
+            ]
+        )
+    ]
 )
diff --git a/scripts/setup_libimobiledevice.sh b/scripts/setup_libimobiledevice.sh
index d9ab647..d789fe8 100755
--- a/scripts/setup_libimobiledevice.sh
+++ b/scripts/setup_libimobiledevice.sh
@@ -30,9 +30,11 @@ die() { echo "[-] $*" >&2; exit 1; }
 
 check_tools() {
     local missing=()
-    for cmd in autoconf automake libtool pkg-config cmake git; do
+    for cmd in autoconf automake pkg-config cmake git; do
         command -v "$cmd" &>/dev/null || missing+=("$cmd")
     done
+    command -v glibtoolize &>/dev/null || command -v libtoolize &>/dev/null \
+        || missing+=("libtool(ize)")
     (( ${#missing[@]} == 0 )) || die "Missing: ${missing[*]} — brew install ${missing[*]}"
 }
 
diff --git a/scripts/setup_venv.sh b/scripts/setup_venv.sh
index b0a831e..50f3543 100755
--- a/scripts/setup_venv.sh
+++ b/scripts/setup_venv.sh
@@ -41,8 +41,12 @@ pip install -r "${REQUIREMENTS}"
 # so we build a dylib from it and place it inside the venv.
 echo ""
 echo "=== Building keystone dylib ==="
-
-KEYSTONE_STATIC="$(find /opt/homebrew/Cellar/keystone -name 'libkeystone.a' -type f 2>/dev/null | head -1)"
+KEYSTONE_DIR="/opt/homebrew/Cellar/keystone"
+if [ ! -d "${KEYSTONE_DIR}" ]; then
+  echo "Error: keystone not found. Install with: brew install keystone"
+  exit 1
+fi
+KEYSTONE_STATIC="$(find "${KEYSTONE_DIR}" -name 'libkeystone.a' -type f 2>/dev/null | head -1)"
 if [[ -z "${KEYSTONE_STATIC}" ]]; then
   echo "Error: libkeystone.a not found. Install with: brew install keystone"
   exit 1
diff --git a/sources/vphone-cli/VPhoneCLI.swift b/sources/vphone-cli/VPhoneCLI.swift
index dcf8e3d..5a2c6f5 100644
--- a/sources/vphone-cli/VPhoneCLI.swift
+++ b/sources/vphone-cli/VPhoneCLI.swift
@@ -19,7 +19,7 @@ struct VPhoneCLI: AsyncParsableCommand {
 
         Example:
           vphone-cli --rom firmware/rom.bin --disk firmware/disk.img
-        """,
+        """
     )
 
     @Option(help: "Path to the AVPBooter / ROM binary")
@@ -98,7 +98,7 @@ struct VPhoneCLI: AsyncParsableCommand {
             sepRomURL: sepRomURL,
             serialLogPath: serialLog,
             stopOnPanic: stopOnPanic,
-            stopOnFatalError: stopOnFatalError,
+            stopOnFatalError: stopOnFatalError
         )
 
         let vm = try VPhoneVM(options: options)
diff --git a/sources/vphone-cli/VPhoneVM.swift b/sources/vphone-cli/VPhoneVM.swift
index 5725503..7d706b1 100644
--- a/sources/vphone-cli/VPhoneVM.swift
+++ b/sources/vphone-cli/VPhoneVM.swift
@@ -48,7 +48,7 @@ class VPhoneVM: NSObject, VZVirtualMachineDelegate {
         let auxStorage = try VZMacAuxiliaryStorage(
             creatingStorageAt: options.nvramURL,
             hardwareModel: hwModel,
-            options: .allowOverwrite,
+            options: .allowOverwrite
         )
         platform.auxiliaryStorage = auxStorage
         platform.hardwareModel = hwModel