diff --git a/.github/workflows/github-actions-demo.yml b/.github/workflows/github-actions-demo.yml
index e8540e8..d22a749 100644
--- a/.github/workflows/github-actions-demo.yml
+++ b/.github/workflows/github-actions-demo.yml
@@ -2,6 +2,11 @@ name: 01-1. GitHub Actions Demo
 on: 
   workflow_dispatch:
   workflow_call:
+  push:
+    branches:
+      - main
+    paths:
+      - 'labs/**'
 
 jobs:
   Explore-GitHub-Actions:
@@ -20,3 +25,12 @@ jobs:
       - run: echo "🍏 This job's status is ${{ job.status }}."
       - name: Adding markdown
         run: echo "### Hello world! :rocket:" >> "$GITHUB_STEP_SUMMARY"
+      # This step uses GitHub's hello-world-javascript-action: https://github.com/actions/hello-world-javascript-action
+      - name: Hello world
+        uses: actions/hello-world-javascript-action@main
+        with:
+          who-to-greet: "Mona the Octocat"
+        id: hello
+      # This step prints an output (time) from the previous step's action.
+      - name: Echo the greeting's time
+        run: echo 'The time was ${{ steps.hello.outputs.time }}.'   
diff --git a/.github/workflows/job-dependencies.yml b/.github/workflows/job-dependencies.yml
index e773fe0..541d700 100644
--- a/.github/workflows/job-dependencies.yml
+++ b/.github/workflows/job-dependencies.yml
@@ -31,3 +31,37 @@ jobs:
     needs: [fanout1, fanout2]
     steps:
       - run: echo "This job will run after fanout1 and fanout2 have finished."
+  build:
+    runs-on: windows-latest
+    steps:
+      - run: echo "This job will be run in parallel with the initial job."
+  test:
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - run: echo "This job will be run after the build job."
+  ring01:
+    runs-on: ubuntu-latest
+    needs: test
+    steps:
+      - run: echo "This job will be run after the test job."
+  ring02:
+    runs-on: macos-latest
+    needs: test
+    steps:
+      - run: echo "This job will be run after the test job."
+  ring03:
+    runs-on: ubuntu-latest
+    needs: test
+    steps:
+      - run: echo "This job will be run after the test job."
+  ring04:
+    runs-on: ubuntu-latest
+    needs: [ring01,ring02,ring03]
+    steps:
+      - run: echo "This job will be run after the ring01,ring02,ring03 jobs."
+  prod:
+    runs-on: ubuntu-latest
+    needs: [ring04]
+    steps:
+      - run: echo "This job will be run after the ring04 job."
diff --git a/labs/dummyFile.txt b/labs/dummyFile.txt
new file mode 100644
index 0000000..e1b27e3
--- /dev/null
+++ b/labs/dummyFile.txt
@@ -0,0 +1,6 @@
+dto trigger workflow
+
+triggered again
+
+
+modified in a separate branch