diff --git a/.github/workflows/test_admin_interface.yml b/.github/workflows/test_admin_interface.yml
index 7108bd0b1..a2d1fe5ef 100644
--- a/.github/workflows/test_admin_interface.yml
+++ b/.github/workflows/test_admin_interface.yml
@@ -52,19 +52,16 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v3
 
-      - name: Install turbo
-        run: yarn global add turbo@^2
-
-      - name: Prune admin with turbos help
-        run: turbo prune admin
+      - name: install bun 
+        uses: oven-sh/setup-bun@v2
 
       - name: install dependencies
-        run: cd out && yarn install --frozen-lockfile --production=false
+        run: bun install --frozen-lockfile
 
       - name: Admin Interface | Unit tests
         id: test
         run: |
-          cd out && turbo admin#test admin#lint
+          bun turbo admin#test admin#lint
           echo "success=$([ $? -eq 0 ] && echo true || echo false)" >> $GITHUB_OUTPUT
 
   lint:
diff --git a/.github/workflows/test_backend.yml b/.github/workflows/test_backend.yml
index 0dd68d762..5eaaf58d1 100644
--- a/.github/workflows/test_backend.yml
+++ b/.github/workflows/test_backend.yml
@@ -59,7 +59,7 @@ jobs:
         run: bun install --frozen-lockfile
 
       - name: Wait for MariaDB to be ready
-        run: docker run --rm --network gradido_internal-net busybox sh -c 'until nc -z mariadb 3306; do echo waiting for db; sleep 1; done;'
+        run: until nc -z localhost 3306; do echo waiting for db; sleep 1; done;
 
       - name: Backend | Unit tests
         run: bun turbo backend#test
diff --git a/.github/workflows/test_dht_node.yml b/.github/workflows/test_dht_node.yml
index 1fd2045bf..95d0d5af4 100644
--- a/.github/workflows/test_dht_node.yml
+++ b/.github/workflows/test_dht_node.yml
@@ -61,8 +61,8 @@ jobs:
         run: cd out && yarn install --frozen-lockfile --production=false
 
       - name: Wait for MariaDB to be ready
-        run: docker run --rm --network gradido_internal-net busybox sh -c 'until nc -z mariadb 3306; do echo waiting for db; sleep 1; done;'
+        run: until nc -z localhost 3306; do echo waiting for db; sleep 1; done;
 
-      - name: run unit test & lint & build & typecheck
-        run: cd out && turbo dht-node#lint dht-node#test dht-node#build dht-node#typecheck
+      - name: run unit test & build & typecheck
+        run: cd out && turbo dht-node#test dht-node#build dht-node#typecheck
 
diff --git a/.github/workflows/test_federation.yml b/.github/workflows/test_federation.yml
index bd670912c..25f8eaab5 100644
--- a/.github/workflows/test_federation.yml
+++ b/.github/workflows/test_federation.yml
@@ -61,8 +61,8 @@ jobs:
         run: cd out && yarn install --frozen-lockfile --production=false
 
       - name: Wait for MariaDB to be ready
-        run: docker run --rm --network gradido_internal-net busybox sh -c 'until nc -z mariadb 3306; do echo waiting for db; sleep 1; done;'
+        run: until nc -z localhost 3306; do echo waiting for db; sleep 1; done;
 
       - name: Federation | Unit tests
         id: test
-        run: cd out && turbo federation#lint federation#test federation#build federation#typecheck
\ No newline at end of file
+        run: cd out && turbo federation#test federation#build federation#typecheck
\ No newline at end of file
diff --git a/.github/workflows/test_frontend.yml b/.github/workflows/test_frontend.yml
index dd376427e..4853ec0d7 100644
--- a/.github/workflows/test_frontend.yml
+++ b/.github/workflows/test_frontend.yml
@@ -41,8 +41,6 @@ jobs:
     name: Unit Tests - Frontend
     needs: files-changed
     runs-on: ubuntu-latest
-    outputs:
-      test-success: ${{ steps.test.outputs.success }}
     steps:
       - name: Set Node.js version
         uses: actions/setup-node@v4
@@ -50,40 +48,53 @@ jobs:
           node-version: '18.20.7'
 
       - name: Checkout code
-        uses: actions/checkout@v3
-
-      - name: Install turbo
-        run: yarn global add turbo@^2
-
-      - name: Prune frontend with turbos help
-        run: turbo prune frontend
+        uses: actions/checkout@v4
+      
+      - name: install bun 
+        uses: oven-sh/setup-bun@v2
 
       - name: install dependencies
-        run: cd out && yarn install --frozen-lockfile --production=false
+        run: bun install --frozen-lockfile
 
       - name: Frontend | Unit tests
-        id: test
-        run: |
-          cd out && turbo frontend#test frontend#lint
-          echo "success=$([ $? -eq 0 ] && echo true || echo false)" >> $GITHUB_OUTPUT
+        run: bun turbo frontend#test
 
   lint:
-    if: needs.files-changed.outputs.frontend == 'true'
+    if: needs.files-changed.outputs.config == 'true' || needs.files-changed.outputs.frontend == 'true'
     name: Lint - Frontend
-    needs: [files-changed, unit_test]
+    needs: files-changed
     runs-on: ubuntu-latest
+    outputs:
+      success: ${{ steps.lint.outputs.success }}
     steps:
-      - name: Check result from previous step
-        run: if [ "${{ needs.unit_test.outputs.test-success }}" != "true" ]; then exit 1; fi
+      - name: Set Node.js version
+        uses: actions/setup-node@v4
+        with:
+          node-version: '18.20.7'
+
+      - name: Checkout code
+        uses: actions/checkout@v4
+      
+      - name: install bun 
+        uses: oven-sh/setup-bun@v2
+
+      - name: install dependencies
+        run: bun install --frozen-lockfile
+
+      - name: Frontend | Lint
+        id: lint
+        run: |
+          bun turbo frontend#lint
+          echo "success=$([ $? -eq 0 ] && echo true || echo false)" >> $GITHUB_OUTPUT
 
   stylelint:
     if: needs.files-changed.outputs.frontend == 'true'
     name: Stylelint - Frontend
-    needs: [files-changed, unit_test]
+    needs: [files-changed, lint]
     runs-on: ubuntu-latest
     steps:
       - name: Check result from previous step
-        run: if [ "${{ needs.unit_test.outputs.test-success }}" != "true" ]; then exit 1; fi
+        run: if [ "${{ needs.lint.outputs.success }}" != "true" ]; then exit 1; fi
 
   locales:
     if: needs.files-changed.outputs.frontend == 'true'