diff --git a/main.spec b/main.spec
index 54cef0a..850cff5 100644
--- a/main.spec
+++ b/main.spec
@@ -4,6 +4,7 @@ from PyInstaller.utils.hooks import collect_all
 # - get version from version file
 import os
 import sys
+import platform
 sys.path.insert(0, os.path.abspath('.'))
 from version import APP_NAME, APP_VERSION
 
@@ -25,40 +26,60 @@ a = Analysis(
     runtime_hooks=[],
     excludes=[],
     noarchive=False,
-    optimize=0,
+    optimize=2,
 )
 pyz = PYZ(a.pure)
 
-exe = EXE(
-    pyz,
-    a.scripts,
-    [],
-    exclude_binaries=True,
-    name='main',
-    debug=False,
-    bootloader_ignore_signals=False,
-    strip=False,
-    upx=True,
-    console=False,
-    disable_windowed_traceback=False,
-    argv_emulation=False,
-    target_arch=None,
-    codesign_identity=None,
-    entitlements_file=None,
-)
-coll = COLLECT(
-    exe,
-    a.binaries,
-    a.datas,
-    strip=False,
-    upx=True,
-    upx_exclude=[],
-    name='main',
-)
-app = BUNDLE(
-    coll,
-    name=f'{APP_NAME}.app',
-    icon=None,
-    bundle_identifier=None,
-    version=APP_VERSION
-)
+if platform.system() == 'Darwin':
+    exe = EXE(
+        pyz,
+        a.scripts,
+        [],
+        exclude_binaries=True,
+        name=APP_NAME,
+        debug=False,
+        bootloader_ignore_signals=False,
+        strip=False,
+        upx=True,
+        console=False,
+        disable_windowed_traceback=False,
+        argv_emulation=False,
+        target_arch=None,
+        codesign_identity=None,
+        entitlements_file=None,
+    )
+    coll = COLLECT(
+        exe,
+        a.binaries,
+        a.datas,
+        strip=True,
+        upx=True,
+        upx_exclude=[],
+        name=APP_NAME,
+    )
+    app = BUNDLE(
+        coll,
+        name=f'{APP_NAME}.app',
+        icon=None,
+        bundle_identifier=None,
+        version=APP_VERSION
+    )
+else:
+    exe = EXE(
+        pyz,
+        a.scripts,
+        a.binaries,
+        a.datas,
+        [],
+        name=APP_NAME,
+        debug=False,
+        bootloader_ignore_signals=False,
+        strip=False,
+        upx=True,
+        console=False,
+        disable_windowed_traceback=False,
+        argv_emulation=False,
+        target_arch=None,
+        codesign_identity=None,
+        entitlements_file=None,
+    )
\ No newline at end of file