diff --git a/.github/workflows/labyrinth.yml b/.github/workflows/labyrinth.yml
index 7aafb242..0a5c89ec 100644
--- a/.github/workflows/labyrinth.yml
+++ b/.github/workflows/labyrinth.yml
@@ -11,103 +11,72 @@ jobs:
         steps:
           - name: Check out repository
             uses: actions/checkout@v2
-          - name: Set up node
-            uses: actions/setup-node@v1
+          - name: Set up Docker Buildx
+            uses: docker/setup-buildx-action@v2
             with:
-                node-version: "16.x"
-          - name: Install dependencies
-            run: |
-              npm ci
+                install: true
           - name: Lint
             run: |
-              npm run lint
+              docker build --target lint .
           - name: Run tests
             run: |
-              npm run test:unit
-          - name: Build web-client
-            run: |
-              npm run build
-          - name: Archive web-client
-            uses: actions/upload-artifact@v2
-            with:
-                name: webClient
-                path: |
-                  dist/
-                  docker/
+              docker build --target test .
 
     algolibs:
         runs-on: ubuntu-latest
-        defaults:
-            run:
-                working-directory: ./algolibs
         steps:
           - name: Check out repository
             uses: actions/checkout@v2
-          - name: Setup cmake
-            uses: lukka/get-cmake@latest
-          - name: Run cmake and build shared library
-            run: |
-              export CC=gcc-9
-              export CXX=g++-9
-              mkdir builds
-              cmake -S. -Bbuilds/shared -DCMAKE_BUILD_TYPE=RELEASE
-              cmake --build builds/shared
-              mkdir -p ../backend/instance/lib/
-              cp builds/shared/solvers/*.so ../backend/instance/lib/
+          - name: Set up Docker Buildx
+            uses: docker/setup-buildx-action@v2
+            with:
+                install: true
           - name: Run tests
             run: |
-              mkdir ../test-results
-              cd builds/shared/test/
-              ctest -V
-              mv all_tests.xml ../../../../test-results/algolibs-results.xml
-              cd ../../../
-          - name: Archive shared library
-            uses: actions/upload-artifact@v1
-            with:
-                name: sharedLib
-                path: backend/instance/lib/
+              docker build --target algolibs-test --file docker/backend.Dockerfile .
   
     backend:
         runs-on: ubuntu-latest
-        defaults:
-            run:
-                working-directory: ./backend
-        needs: [web-client, algolibs]
+        needs: [algolibs]
         steps:
           - name: Check out repository
             uses: actions/checkout@v2
-          - name: Set up Python 3.8
-            uses: actions/setup-python@v2
+          - name: Set up Docker Buildx
+            uses: docker/setup-buildx-action@v2
             with:
-                python-version: 3.8
-          - name: Install dependencies
-            run: |
-              python -m venv venv
-              . venv/bin/activate
-              pip install --upgrade pip
-              pip install -r dev-requirements.txt
+                install: true
           - name: Lint
             run: |
-              . venv/bin/activate
-              flake8 . --count --max-line-length=120 --max-complexity=10 --show-source --statistics --exclude __pycache__,venv
-          - name: Restore shared library artifact
-            uses: actions/download-artifact@v1
-            with:
-                name: sharedLib
-                path: backend/instance/lib/
+              docker build --target lint --file docker/backend.Dockerfile .
           - name: Run tests
             run: |
-              . venv/bin/activate
-              pytest . --junitxml=../test-results/backend-results.xml --cov=backend --cov-report=xml:../test-results/backend-coverage.xml
-          - name: Archive deployment
-            uses: actions/upload-artifact@v2
+              docker build --target test --file docker/backend.Dockerfile .
+    release:
+        runs-on: ubuntu-latest
+        needs: [web-client, algolibs, backend]
+        steps:
+          - name: Check out repository
+            uses: actions/checkout@v2
+          - name: Set up Docker Buildx
+            uses: docker/setup-buildx-action@v2
+            with:
+                install: true
+          - name: Log in to Docker Hub
+            uses: docker/login-action@v1
+            with:
+                username: ${{ secrets.DOCKERHUB_USERNAME }}
+                password: ${{ secrets.DOCKERHUB_PASSWORD }}
+          - name: Build and push web-client image
+            uses: docker/build-push-action@v2
+            with:
+                context: ./web-client
+                file: ./web-client/Dockerfile
+                push: true
+                tags: julianarz/labyrinth-web-client:latest
+          - name: Build and push backend image
+            uses: docker/build-push-action@v2
             with:
-                name: deployment
-                path: |
-                  backend/instance
-                  backend/static
-                  backend/labyrinth
-                  backend/requirements.txt
-                  backend/labyrinth_main.py
-                  backend/uwsgi-docker.ini
-                  backend/Dockerfile
+                context: ./
+                file: ./docker/backend.Dockerfile
+                push: true
+                tags: julianarz/labyrinth-backend:latest
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
deleted file mode 100644
index 2dbf24f3..00000000
--- a/.github/workflows/release.yml
+++ /dev/null
@@ -1,64 +0,0 @@
-name: release
-
-on: 
-    workflow_dispatch:
-    push:
-        tags:
-            '[0-9]+.[0-9]+.[0-9]+'
-
-jobs:
-    web-client:
-        runs-on: ubuntu-latest
-        steps:
-          - name: Check out repository
-            uses: actions/checkout@v2
-          - name: Log in to Docker Hub
-            uses: docker/login-action@v1
-            with:
-                username: ${{ secrets.DOCKERHUB_USERNAME }}
-                password: ${{ secrets.DOCKERHUB_PASSWORD }}
-          - name: Extract metadata (tags, labels) for Docker
-            id: meta
-            uses: docker/metadata-action@v3
-            with:
-                images: julianarz/labyrinth-web-client
-                tags: |
-                  type=ref,priority=600,event=branch
-                  type=match,priority=600,pattern=\d.\d.\d
-                  type=raw,priority=200,value=latest
-          - name: Build and push Docker image
-            uses: docker/build-push-action@v2
-            with:
-                context: ./web-client
-                file: ./web-client/Dockerfile
-                push: true
-                tags: ${{ steps.meta.outputs.tags }}
-                labels: ${{ steps.meta.outputs.labels }}
-
-    backend:
-        runs-on: ubuntu-latest
-        steps:
-          - name: Check out repository
-            uses: actions/checkout@v2
-          - name: Log in to Docker Hub
-            uses: docker/login-action@v1
-            with:
-                username: ${{ secrets.DOCKERHUB_USERNAME }}
-                password: ${{ secrets.DOCKERHUB_PASSWORD }}
-          - name: Extract metadata (tags, labels) for Docker
-            id: meta
-            uses: docker/metadata-action@v3
-            with:
-                images: julianarz/labyrinth-backend
-                tags: |
-                  type=ref,priority=600,event=branch
-                  type=match,priority=600,pattern=\d.\d.\d
-                  type=raw,priority=200,value=latest
-          - name: Build and push Docker image
-            uses: docker/build-push-action@v2
-            with:
-                context: ./
-                file: ./docker/backend.Dockerfile
-                push: true
-                tags: ${{ steps.meta.outputs.tags }}
-                labels: ${{ steps.meta.outputs.labels }}
\ No newline at end of file
diff --git a/docker/backend.Dockerfile b/docker/backend.Dockerfile
index 0f56d220..56f394e8 100644
--- a/docker/backend.Dockerfile
+++ b/docker/backend.Dockerfile
@@ -45,16 +45,20 @@ COPY backend/instance ./instance
 RUN rm -rf instance/lib && mkdir instance/lib
 COPY --from=algolibs-release /usr/src/algolibs/build/solvers/*.so instance/lib/
 
-FROM base as test
+FROM base as dev
 
 COPY backend/dev-requirements.txt .
 RUN pip install --no-cache-dir -r dev-requirements.txt
 
 # lint
+FROM dev as lint
 RUN flake8 . --count --max-line-length=120 --max-complexity=10 --show-source --statistics --exclude __pycache__,venv
 
 # test
-RUN pytest . --junitxml=../test-results/backend-results.xml --cov=backend --cov-report=xml:../test-results/backend-coverage.xml
+FROM dev as test 
+COPY backend/pytest.ini backend/conftest.py ./
+COPY backend/tests ./tests
+RUN pytest .
 
 FROM base as release
 
diff --git a/web-client/Dockerfile b/web-client/Dockerfile
index 07a6766e..3caf27aa 100644
--- a/web-client/Dockerfile
+++ b/web-client/Dockerfile
@@ -3,15 +3,20 @@ FROM node:16 as base
 WORKDIR /usr/src/web-client
 
 # copy everything but .dockerignore
-COPY . ./
+COPY package.json package-lock.json ./
 
 RUN npm ci
 
+COPY . ./
+
 FROM base as test
 
-RUN npm run lint
 RUN npm run test:unit
 
+FROM base as lint
+
+RUN npm run lint
+
 FROM base as build
 
 RUN npm run build
diff --git a/web-client/package.json b/web-client/package.json
index 6511d8d0..dcd885d8 100644
--- a/web-client/package.json
+++ b/web-client/package.json
@@ -6,7 +6,7 @@
     "serve": "vue-cli-service serve",
     "build": "vue-cli-service build",
     "test:unit": "vue-cli-service test:unit --maxWorkers=4",
-    "lint": "vue-cli-service lint",
+    "lint": "vue-cli-service lint --no-fix",
     "debug-build": "vue-cli-service build --mode development"
   },
   "dependencies": {