diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..cf6570b
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,6 @@
+target/
+db.sqlite
+.history/
+frontend/node_modules/*
+/static/
+/data-ergo/
diff --git a/.gitea/workflows/action.yml b/.gitea/workflows/action.yml
index 493fbc9..91b1957 100644
--- a/.gitea/workflows/action.yml
+++ b/.gitea/workflows/action.yml
@@ -7,29 +7,35 @@ env:
   SSH_HOST: ${{ secrets.SSH_HOST }}
   SSH_USER: ${{ secrets.SSH_USER }}
   SSH_PRIVATE_KEY: ${{ secrets.SSH_PRIVATE_KEY }}
-  CARGO_INCREMENTAL: 0
 
 jobs:
-  test-frontend:
+  test:
     runs-on: ubuntu-latest
-    container: rust:latest
+    container: git.hofer.link/ruderverein-donau-linz/rowing-ci:20240118
     steps:
-    - name: Setup Environment
-      run: |
-        apt-get update -qq && apt-get install -y -qq sshpass musl musl-tools sqlite3 curl gnupg && mkdir -p /etc/apt/keyrings | curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg && echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_16.x nodistro main" | tee /etc/apt/sources.list.d/nodesource.list && apt-get update && apt-get install nodejs -y && apt-get install npm -y
     - uses: actions/checkout@v3
     - name: Run Test DB Script
       run: ./test_db.sh
+
+    - name: Set up cargo cache
+      uses: actions/cache@v3
+      with:
+        path: |
+          ~/.cargo/bin/
+          ~/.cargo/registry/index/
+          ~/.cargo/registry/cache/
+          ~/.cargo/git/db/
+          target/
+        key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+
     - name: Build
       run: |
         cargo build 
         cd frontend && npm install && npm run build
-    - name: Install dependencies
-      run: cd frontend && npm install
-    - name: Install Playwright Browsers
-      run: cd frontend && npx playwright install --with-deps
-    - name: Run Playwright tests
+    - name: Frontend tests
       run: cd frontend && npx playwright test --workers 1
+    - name: Backend tests
+      run: cargo test --verbose
     #- uses: actions/upload-artifact@v3
     #  if: always()
     #  with:
@@ -37,61 +43,30 @@ jobs:
     #    path: frontend/playwright-report/
     #    retention-days: 30
 
-  test-backend:
-    runs-on: ubuntu-latest
-    container: rust:latest
-
-    steps:
-      - name: Setup Environment
-        run: |
-          apt-get update -qq && apt-get install -y -qq sshpass musl musl-tools sqlite3 curl gnupg && mkdir -p /etc/apt/keyrings | curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg && echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_16.x nodistro main" | tee /etc/apt/sources.list.d/nodesource.list && apt-get update && apt-get install nodejs -y && apt-get install npm -y
-
-      - name: Checkout
-        uses: actions/checkout@v3
-
-      - name: Run Test DB Script
-        run: ./test_db.sh
-
-      - name: Build
-        run: |
-          cargo build 
-          cd frontend && npm install && npm run build
-
-      - name: Run Tests
-        run: cargo test --verbose
 
   deploy-staging:
     runs-on: ubuntu-latest
-    container: rust:latest
-    needs: [test_frontend, test_backend]
+    container: git.hofer.link/ruderverein-donau-linz/rowing-ci:20240118
+    needs: [test]
     if: github.ref == 'refs/heads/staging'
     steps:
-      - name: Setup Environment
-        run: |
-          rustup target add $CARGO_TARGET
-          apt-get update -qq && apt-get install -y -qq pkg-config sshpass musl musl-tools sqlite3 curl gnupg libssl-dev
-          
-          # Handling NodeSource GPG key
-          curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key -o nodesource.gpg.key
-          if [ -f /etc/apt/keyrings/nodesource.gpg ]; then
-              rm /etc/apt/keyrings/nodesource.gpg
-          fi
-          gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg nodesource.gpg.key
-
-          # Adding NodeSource repository
-          echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_16.x nodistro main" | tee /etc/apt/sources.list.d/nodesource.list
-          
-          # Installing Node.js and npm
-          apt-get update
-          apt-get install nodejs -y
-          apt-get install npm -y
-
       - name: Checkout
         uses: actions/checkout@v3
       
       - name: Run Test DB Script
         run: ./test_db.sh
 
+      - name: Set up cargo cache
+        uses: actions/cache@v3
+        with:
+          path: |
+            ~/.cargo/bin/
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            target/
+          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+
       - name: Build
         run: |
           cargo build --release --target $CARGO_TARGET
@@ -122,20 +97,26 @@ jobs:
 
   deploy-main:
     runs-on: ubuntu-latest
-    container: rust:latest
-    needs: [test_frontend, test_backend]
+    container: git.hofer.link/ruderverein-donau-linz/rowing-ci:20240118
+    needs: [test]
     if: github.ref == 'refs/heads/main'
     steps:
-      - name: Setup Environment
-        run: |
-          rustup target add $CARGO_TARGET
-          apt-get update -qq && apt-get install -y -qq pkg-config sshpass musl musl-tools sqlite3 curl gnupg libssl-dev && mkdir -p /etc/apt/keyrings | curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg && echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_16.x nodistro main" | tee /etc/apt/sources.list.d/nodesource.list && apt-get update && apt-get install nodejs -y && apt-get install npm -y
-
       - name: Checkout
         uses: actions/checkout@v3
       
       - name: Run Test DB Script
         run: ./test_db.sh
+      
+      - name: Set up cargo cache
+        uses: actions/cache@v3
+        with:
+          path: |
+            ~/.cargo/bin/
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            target/
+          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
 
       - name: Build
         run: |
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..bf52e2a
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,26 @@
+# This dockerfile is used as basis for the CI jobs.
+# Process to renew it:
+# 0. Login to gitea docker registry: `docker login git.hofer.link`
+# 1. Build the image `docker build .`
+# 2. Tag the image: `docker tag <id> git.hofer.link/ruderverein-donau-linz/rowing-ci:<date>`
+# 3. Push the image: `docker push git.hofer.link/ruderverein-donau-linz/rowing-ci:<date>`
+
+
+FROM rust:1.75.0
+
+RUN apt-get update && apt-get install -y sqlite3
+
+# nodejs
+RUN apt-get install -y curl && \
+    curl -sL https://deb.nodesource.com/setup_21.x | bash - && \
+    apt-get install -y nodejs
+
+# playwright
+RUN npx playwright install --with-deps
+
+# deployment
+RUN rustup target add x86_64-unknown-linux-musl
+RUN apt-get install -y -qq pkg-config sshpass musl musl-tools curl gnupg libssl-dev
+
+# TEMPORARY act workaround (otherwise gitea cache is not working)
+RUN apt-get install -y zstd
diff --git a/README.md b/README.md
index d6afcc6..96d2517 100644
--- a/README.md
+++ b/README.md
@@ -1,17 +1,14 @@
 # Build
-
 ## Frontend
 1. `cd frontend`
 2. `npm install`
 3. `npm run (watch/build)`
 
 # Run
-
 ## Backend
 1. `cargo r`
 
 # Test
-
 ## Frontend
 - `npx playwright test --workers 1 --project firefox`
 - Nice UI: `--ui`
@@ -19,4 +16,3 @@
 
 ## Backend (Unit + Integration)
 `cargo t`
-