diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..de943ed
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,65 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+jobs:
+  api:
+    name: API в Docker (lab-2/local)
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Сборка и запуск
+        working-directory: lab-2/local
+        run: |
+          cp .env.example .env
+          docker compose up -d --build --wait postgres_service
+          docker compose up -d --build
+      - name: API отдаёт сгенерированные тесты
+        run: |
+          for i in $(seq 1 30); do
+            curl -sf http://localhost/api/quiz/ -o quiz.json && break
+            sleep 3
+          done
+          python3 -c "
+          import json
+          d = json.load(open('quiz.json'))
+          items = d['results'] if isinstance(d, dict) else d
+          assert items, 'список тестов пуст'
+          print('тестов:', d.get('count', len(items)) if isinstance(d, dict) else len(items))"
+      - name: Журнал при ошибке
+        if: failure()
+        working-directory: lab-2/local
+        run: docker compose logs --tail 50
+
+  images:
+    name: Образы caddy/ собираются
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - working-directory: lab-2/caddy
+        run: cp .env.example .env && docker compose build
+
+  client:
+    name: Qt-клиент (${{ matrix.os }})
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: jurplel/install-qt-action@v4
+        with:
+          version: "6.8.*"
+          cache: true
+      - name: Зависимости сборки (Linux)
+        if: runner.os == 'Linux'
+        run: sudo apt-get update -qq && sudo apt-get install -y -qq libgl1-mesa-dev libxkbcommon-dev
+      - name: Сборка
+        working-directory: lab-3
+        run: |
+          cmake -B build -DCMAKE_BUILD_TYPE=Release
+          cmake --build build --config Release
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 0000000..ccb66c1
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,80 @@
+name: Release
+
+on:
+  push:
+    tags: ["v*"]
+  workflow_dispatch:
+
+jobs:
+  windows:
+    name: Qt-клиент для Windows
+    runs-on: windows-latest
+    permissions:
+      contents: write
+    steps:
+      - uses: actions/checkout@v4
+      - uses: jurplel/install-qt-action@v4
+        with:
+          version: "6.8.*"
+          cache: true
+      - name: Сборка
+        working-directory: lab-3
+        run: |
+          cmake -B build
+          cmake --build build --config Release
+      - name: Программа с библиотеками Qt
+        run: |
+          New-Item -ItemType Directory dist/quizlab-client | Out-Null
+          Copy-Item lab-3/build/Release/lab-3.exe dist/quizlab-client/quizlab-client.exe
+          windeployqt --release --no-translations --no-system-d3d-compiler --no-opengl-sw dist/quizlab-client/quizlab-client.exe
+          Compress-Archive -Path dist/quizlab-client -DestinationPath quizlab-client-windows-x64.zip
+      - uses: actions/upload-artifact@v4
+        with:
+          name: windows
+          path: quizlab-client-windows-x64.zip
+      - name: Файл в релиз
+        if: startsWith(github.ref, 'refs/tags/')
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: gh release upload "${{ github.ref_name }}" quizlab-client-windows-x64.zip --clobber
+
+  linux:
+    name: Qt-клиент для Linux (AppImage)
+    runs-on: ubuntu-22.04
+    permissions:
+      contents: write
+    steps:
+      - uses: actions/checkout@v4
+      - uses: jurplel/install-qt-action@v4
+        with:
+          version: "6.8.*"
+          cache: true
+      - run: sudo apt-get update -qq && sudo apt-get install -y -qq libgl1-mesa-dev libxkbcommon-dev libxcb-cursor0
+      - name: Сборка
+        working-directory: lab-3
+        run: |
+          cmake -B build -DCMAKE_BUILD_TYPE=Release
+          cmake --build build
+      - name: AppImage
+        env:
+          APPIMAGE_EXTRACT_AND_RUN: "1"
+          OUTPUT: quizlab-client-linux-x86_64.AppImage
+        run: |
+          wget -q https://github.com/linuxdeploy/linuxdeploy/releases/download/continuous/linuxdeploy-x86_64.AppImage
+          wget -q https://github.com/linuxdeploy/linuxdeploy-plugin-qt/releases/download/continuous/linuxdeploy-plugin-qt-x86_64.AppImage
+          chmod +x linuxdeploy*.AppImage
+          mkdir -p appdir
+          cp lab-3/build/lab-3 quizlab-client
+          cp lab-3/icons/app.svg quizlab-client.svg
+          printf '[Desktop Entry]\nType=Application\nName=Quiz Client\nExec=quizlab-client\nIcon=quizlab-client\nCategories=Education;\n' > quizlab-client.desktop
+          export QMAKE=$(which qmake)
+          ./linuxdeploy-x86_64.AppImage --appdir appdir -e quizlab-client -d quizlab-client.desktop -i quizlab-client.svg --plugin qt --output appimage
+      - uses: actions/upload-artifact@v4
+        with:
+          name: linux
+          path: quizlab-client-linux-x86_64.AppImage
+      - name: Файл в релиз
+        if: startsWith(github.ref, 'refs/tags/')
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: gh release upload "${{ github.ref_name }}" quizlab-client-linux-x86_64.AppImage --clobber