diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
new file mode 100644
index 0000000..267c6c6
--- /dev/null
+++ b/.github/workflows/main.yml
@@ -0,0 +1,13 @@
+name: Main Workflow
+on:
+  push:
+  schedule:
+    - cron: "0 0 * * 0"
+jobs:
+  build:
+    name: Build
+    timeout-minutes: 10
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code from repository
+        uses: actions/checkout@v3
diff --git a/.mergify/config.yml b/.mergify/config.yml
index de2e1d1..7bb05cd 100644
--- a/.mergify/config.yml
+++ b/.mergify/config.yml
@@ -1,7 +1,6 @@
 shared:
   my_ci: &common_checks
-    - check-success=ci-one
-    - check-success=ci-two
+    - check-success=build
 
 queue_rules:
   - name: hotfix
@@ -9,7 +8,7 @@ queue_rules:
 
   - name: default
     merge_conditions:
-    - check-success=slow-ci
+    - check-success=build
     - and: *common_checks
 
 pull_request_rules:
diff --git a/__pycache__/main.cpython-310.pyc b/__pycache__/main.cpython-310.pyc
new file mode 100644
index 0000000..c135097
Binary files /dev/null and b/__pycache__/main.cpython-310.pyc differ
diff --git a/main.py b/main.py
new file mode 100644
index 0000000..a7c3aa2
--- /dev/null
+++ b/main.py
@@ -0,0 +1,10 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+
+def hello():
+    print("hello world")
+
+
+def sum_two_numbers(a, b):
+    return a + b
diff --git a/test.py b/test.py
index 7d93762..54e3179 100644
--- a/test.py
+++ b/test.py
@@ -1,2 +1,17 @@
-def tobias():
-    print("hello world")
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+import unittest
+
+from main import sum_two_numbers
+
+
+class TestSum(unittest.TestCase):
+    def test_sum(self):
+        self.assertEqual(sum_two_numbers(2, 3), 5)
+        self.assertEqual(sum_two_numbers(0, 0), 0)
+        self.assertEqual(sum_two_numbers(-1, 1), 0)
+
+
+if __name__ == "__main__":
+    unittest.main()