diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 76178d2..2376b2c 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -109,3 +109,36 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
           draft: true
           files: Tsuchinoko*.exe
+  macbuild:
+    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/')
+    needs: test
+    runs-on: macos-latest
+    strategy:
+      matrix:
+        python-version: [ '3.9' ]
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies
+        run: |
+          pip install -e .[dev]
+
+      - name: pyinstaller
+        run: |
+          pyinstaller --noconfirm --clean tsuchinoko.spec
+
+      - name: rename to .app
+        run: |
+          mv dist/Tsuchinoko dist/Tsuchinoko.app
+
+      - name: Release
+        uses: softprops/action-gh-release@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          draft: true
+          files: dist/Tsuchinoko.app
\ No newline at end of file
diff --git a/install.nsi b/install.nsi
index 25c8334..c0fd41c 100644
--- a/install.nsi
+++ b/install.nsi
@@ -5,7 +5,7 @@
   !include "x64.nsh"
   !define MUI_BRANDINGTEXT "Tsuchinoko ${VERSION}"
   !define MUI_PRODUCT "Tsuchinoko"
-  !define MUI_FILE "Tsuchinoko"
+  !define MUI_FILE "tsuchinoko_client"
   CRCCheck On
 
 ;---------------------------------
diff --git a/tsuchinoko.spec b/tsuchinoko.spec
index 8eab841..bc72832 100644
--- a/tsuchinoko.spec
+++ b/tsuchinoko.spec
@@ -1,10 +1,12 @@
 # -*- mode: python ; coding: utf-8 -*-
 import os
 import glob
+import sys
 
 import dask
 import distributed
 import event_model
+import torch
 
 from tsuchinoko import assets, examples
 import tsuchinoko
@@ -36,11 +38,17 @@ datas_dst.append('tsuchinoko/examples')
 datas_src.append(os.path.join(examples.__path__[0], 'peak2.png'))
 datas_dst.append('tsuchinoko/examples')
 
+# functorch (mac only)
+if sys.platform == 'darwin':
+    datas_src.append(os.path.join(torch.__path__[0],'lib','libiomp5.dylib'))
+    datas_dst.append('functools/.dylibs')
+
+
 print('extras:')
 print(list(zip(datas_src, datas_dst)))
 
 a = Analysis(
-    ['tsuchinoko\\examples\\client_demo.py'],
+    [os.path.join('tsuchinoko','examples','client_demo.py')],
     pathex=[],
     binaries=[],
     datas=zip(datas_src, datas_dst),
@@ -52,7 +60,7 @@ a = Analysis(
                    'tsuchinoko.examples.quadtree_demo',
                    'tsuchinoko.examples.server_demo',
                    'tsuchinoko.examples.server_demo_bluesky',
-                   'tsuchinoko.examples.vector_metric_demo'],
+                   'tsuchinoko.examples.vector_metric_demo',],
     hookspath=[],
     hooksconfig={},
     runtime_hooks=[],
@@ -64,7 +72,7 @@ a = Analysis(
 )
 
 a2 = Analysis(
-    ['tsuchinoko\\examples\\_launch_demo.py'],
+    [os.path.join('tsuchinoko','examples','_launch_demo.py')],
     pathex=[],
     binaries=[],
     datas=zip(datas_src, datas_dst),
@@ -76,7 +84,7 @@ a2 = Analysis(
                    'tsuchinoko.examples.quadtree_demo',
                    'tsuchinoko.examples.server_demo',
                    'tsuchinoko.examples.server_demo_bluesky',
-                   'tsuchinoko.examples.vector_metric_demo'],
+                   'tsuchinoko.examples.vector_metric_demo',],
     hookspath=[],
     hooksconfig={},
     runtime_hooks=[],
@@ -96,12 +104,12 @@ exe = EXE(
     a.scripts,
     [],
     exclude_binaries=True,
-    name='Tsuchinoko',
+    name='tsuchinoko_client',
     debug=False,
     bootloader_ignore_signals=False,
     strip=False,
     upx=True,
-    console=True,
+    console=False,
     disable_windowed_traceback=False,
     argv_emulation=False,
     target_arch=None,
@@ -120,7 +128,7 @@ exe2 = EXE(
     bootloader_ignore_signals=False,
     strip=False,
     upx=True,
-    console=True,
+    console=False,
     disable_windowed_traceback=False,
     argv_emulation=False,
     target_arch=None,
@@ -129,13 +137,24 @@ exe2 = EXE(
     icon=assets.path('tsuchinoko.png')
 )
 
-coll = COLLECT(
-    exe, exe2,
-    a.binaries, a2.binaries,
-    a.zipfiles, a2.zipfiles,
-    a.datas, a2.datas,
-    strip=False,
-    upx=True,
-    upx_exclude=[],
-    name='Tsuchinoko',
-)
+print(f'platform: {sys.platform}')
+if sys.platform == 'win32':
+    coll = COLLECT(
+        exe, exe2,
+        a.binaries, a2.binaries,
+        a.zipfiles, a2.zipfiles,
+        a.datas, a2.datas,
+        strip=False,
+        upx=True,
+        upx_exclude=[],
+        name='Tsuchinoko',
+    )
+elif sys.platform == 'darwin':
+    app = BUNDLE(
+        exe, exe2, a.binaries, a2.binaries, a.zipfiles, a2.zipfiles, a.datas, a2.datas,
+        name='Tsuchinoko',
+        icon=assets.path('tsuchinoko.png'),
+        bundle_identifier=None,
+    )
+
+
diff --git a/tsuchinoko/widgets/mainwindow.py b/tsuchinoko/widgets/mainwindow.py
index fcebc8e..8e8d11d 100644
--- a/tsuchinoko/widgets/mainwindow.py
+++ b/tsuchinoko/widgets/mainwindow.py
@@ -385,6 +385,7 @@ def start_demo(self, demo_key):
                 if result == QMessageBox.Cancel:
                     return
 
-        demo_exe = (Path(sys.executable).parent/'tsuchinoko_demo').with_suffix(Path(sys.executable).suffix)
+        suffix = Path(sys.executable).suffix 
+        demo_exe = (Path(sys.executable).parent/'tsuchinoko_demo').with_suffix(suffix if suffix=='.exe' else '')
         print(demo_exe)
         self._server = subprocess.Popen([demo_exe, demo_key])