diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 70a48a6..6410548 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -22,6 +22,14 @@ jobs:
         uses: actions/setup-python@v3
         with:
             python-version: "3.11"
+      - name: Set up MinGW
+        uses: egor-tensin/setup-mingw@v2
+        with:
+          platform: x64
+      - name: ccache
+        uses: hendrikmuhs/ccache-action@v1.2
+        with:
+          create-symlink: true
       - name: Install Dependencies and Generate Bundle
         run: |
           python generate-bundle.py
diff --git a/favicon.ico b/favicon.ico
deleted file mode 100644
index ba4abb7..0000000
Binary files a/favicon.ico and /dev/null differ
diff --git a/favicon.png b/favicon.png
new file mode 100644
index 0000000..4406683
Binary files /dev/null and b/favicon.png differ
diff --git a/generate-bundle.py b/generate-bundle.py
index 7a28f11..221e5d3 100644
--- a/generate-bundle.py
+++ b/generate-bundle.py
@@ -1,29 +1,33 @@
 import os
 import shutil
+import subprocess
 import urllib.request
 import zipfile
 import platform
 
 if platform.system() == 'Windows':
     os.system("python3 -m pip install pyyaml install-jdk tqdm psutil requests pygithub "
-              "rtoml-0.10.0-cp311-none-win_amd64.whl pyinstaller")
+              "rtoml-0.10.0-cp311-none-win_amd64.whl nuitka")
     urllib.request.urlretrieve("https://github.com/upx/upx/releases/download/v4.2.4/upx-4.2.4-win64.zip",
                                "upx.zip")
     zip = zipfile.ZipFile("upx.zip")
     zip.extract("upx-4.2.4-win64/upx.exe", path=os.getcwd())
     shutil.move("upx-4.2.4-win64/upx.exe", os.path.join(os.getcwd(), "upx.exe"))
 else:
-    os.system("python3 -m pip install pyyaml install-jdk tqdm psutil requests pygithub rtoml pyinstaller")
-
-import PyInstaller.__main__
+    os.system("python3 -m pip install pyyaml install-jdk tqdm psutil requests pygithub rtoml nuitka")
 
 os.mkdir("dist")
 for file in os.listdir(os.path.join(os.getcwd(), "src")):
     filepath = os.path.join(os.getcwd(), "src", file)
     print(f"build {file}", flush=True)
-    flag = ["-F", filepath, "--optimize", "2", "-i", "favicon.ico"]
-    if platform.system() != 'Windows':
-        flag.append("--strip")
-    PyInstaller.__main__.run(flag)
+    args = ["python3", "-m", "nuitka", "--lto=yes", "--onefile", filepath, "--output-dir=dist"]
+    if platform.system() == 'Windows':
+        args.append("--windows-icon-from-ico=favicon.png")
+    if platform.system() == 'MacOS':
+        args.append("--macos-app-icon=favicon.png")
+    subprocess.call(args)
+    if platform.system() == 'Windows':
+        subprocess.call(["upx.exe", os.path.join(os.getcwd(), "dist", file + ".exe"), "-o",
+                         os.path.join(os.getcwd(), "dist", file + ".exe"), "-9", "-q"])
 # 傻逼
 # 狗屎代碼