diff --git a/.github/workflows/build-validator.yaml b/.github/workflows/build-validator.yaml
new file mode 100644
index 0000000..1235915
--- /dev/null
+++ b/.github/workflows/build-validator.yaml
@@ -0,0 +1,40 @@
+name: build validator
+on:
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  ubuntu-validator:
+    name: validate builds for the Ubuntu operating system
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
+    steps:
+      - uses: actions/checkout@v2
+      - run: pip3 install -r requirements.txt
+      - run: sudo apt install gir1.2-appindicator3-0.1
+      - run: sudo apt install python3-tk
+      - run: sudo apt purge fcitx-module-dbus
+      - run: sudo apt update
+      - run: sudo apt install xfce4 xfce4-goodies
+      - run: sudo apt install tightvncserver
+      - run: vncserver :1
+      - run: export DISPLAY=:1
+      - run: python3 runner.py
+      - run: pip3 install pyinstaller
+      - run: pyinstaller --noconsole --onefile 'runner.py' --name 'slt_usage'
+  validator2:
+    name: validate2 builds for all operating systems
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v2
+      - run: pip3 --version
+      - run: pip3 install -r requirements.txt
+      - run: sudo apt install gir1.2-appindicator3-0.1
+      - run: sudo apt install python3-tk
+      - run: sudo apt purge fcitx-module-dbus
diff --git a/runner.py b/runner.py
index f405849..c35cbfd 100644
--- a/runner.py
+++ b/runner.py
@@ -1,5 +1,5 @@
-import platform
-from tray_icons.system_tray_icon_base import *
+# import platform
+# from tray_icons.system_tray_icon_base import *
 
 if __name__ == "__main__":
     credential_manager = CredentialManager()
diff --git a/runner.pyc b/runner.pyc
new file mode 100644
index 0000000..b699c11
Binary files /dev/null and b/runner.pyc differ