diff --git a/.gitea/workflows/ci.yaml b/.gitea/workflows/ci.yaml
new file mode 100644
index 0000000..c5ca909
--- /dev/null
+++ b/.gitea/workflows/ci.yaml
@@ -0,0 +1,28 @@
+name: CI
+on:
+  push:
+    branches: [main, dev]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Set up Java 17
+        uses: actions/setup-java@v3
+        with:
+          java-version: '17'
+          distribution: 'temurin'
+          cache: gradle
+
+      - name: Make Gradle wrapper executable
+        run: chmod +x ./gradlew
+        working-directory: backend
+
+      - name: Run tests
+        run: ./gradlew test --no-daemon
+        working-directory: backend
diff --git a/backend/src/main/java/dev/ksan/etfoglasiserver/service/DeviceTokenService.java b/backend/src/main/java/dev/ksan/etfoglasiserver/service/DeviceTokenService.java
new file mode 100644
index 0000000..568f1f4
--- /dev/null
+++ b/backend/src/main/java/dev/ksan/etfoglasiserver/service/DeviceTokenService.java
@@ -0,0 +1,4 @@
+package dev.ksan.etfoglasiserver.service;
+
+public class DeviceTokenService {
+}
diff --git a/backend/src/test/java/dev/ksan/etfoglasiserver/controller/DeviceTokenControllerTest.java b/backend/src/test/java/dev/ksan/etfoglasiserver/controller/DeviceTokenControllerTest.java
new file mode 100644
index 0000000..f7d1f9c
--- /dev/null
+++ b/backend/src/test/java/dev/ksan/etfoglasiserver/controller/DeviceTokenControllerTest.java
@@ -0,0 +1,4 @@
+package dev.ksan.etfoglasiserver.controller;
+
+public class DeviceTokenControllerTest {
+}
diff --git a/backend/src/test/java/dev/ksan/etfoglasiserver/controller/UserControllerIntegrationTest.java b/backend/src/test/java/dev/ksan/etfoglasiserver/controller/UserControllerIntegrationTest.java
new file mode 100644
index 0000000..98e5b3e
--- /dev/null
+++ b/backend/src/test/java/dev/ksan/etfoglasiserver/controller/UserControllerIntegrationTest.java
@@ -0,0 +1,4 @@
+package dev.ksan.etfoglasiserver.controller;
+
+public class UserControllerIntegrationTest {
+}
diff --git a/backend/src/test/java/dev/ksan/etfoglasiserver/service/NotificationServiceTest.java b/backend/src/test/java/dev/ksan/etfoglasiserver/service/NotificationServiceTest.java
new file mode 100644
index 0000000..78284fa
--- /dev/null
+++ b/backend/src/test/java/dev/ksan/etfoglasiserver/service/NotificationServiceTest.java
@@ -0,0 +1,4 @@
+package dev.ksan.etfoglasiserver.service;
+
+public class NotificationServiceTest {
+}