diff --git a/.ci_support/environment.yml b/.ci_support/environment.yml
new file mode 100644
index 0000000..1f735a7
--- /dev/null
+++ b/.ci_support/environment.yml
@@ -0,0 +1,4 @@
+channels:
+  - conda-forge
+dependencies:
+  - pyiron_workflow
diff --git a/.github/workflows/run_workflow.yml b/.github/workflows/run_workflow.yml
new file mode 100644
index 0000000..1473137
--- /dev/null
+++ b/.github/workflows/run_workflow.yml
@@ -0,0 +1,38 @@
+name: Run workflow
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    types: [labeled, opened, synchronize, reopened]
+  workflow_call:
+    
+jobs:
+  run_workflow:
+    if: |
+      github.event_name == 'push' ||
+      ( github.event_name == 'pull_request'  && contains(github.event.pull_request.labels.*.name, 'run_workflow' ))
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup environment
+        uses: pyiron/actions/cached-miniforge@actions-3.2.0
+        with:
+          python-version: '3.11'
+          env-files: .ci_support/environment.yml
+          local-code-directory: ''
+          use-cache: 'true'
+          miniforge-channels: conda-forge
+          pip-install-versioneer: 'false'
+          no-build-isolation: 'false'
+      - name: Add papermill
+        shell: bash -l {0}
+        run: mamba install -n my-env papermill
+      - name: Execute workflow
+        shell: bash -l {0}
+        run: papermill workflow.ipynb workflow-out.ipynb -k python3
+      - name: Upload updated notebook as artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: workflow-out.ipynb
+          path: ./workflow-out.ipynb
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..e69de29
diff --git a/README.md b/README.md
index 2b91c3c..1399409 100644
--- a/README.md
+++ b/README.md
@@ -1,11 +1,10 @@
 # graphathon
 
-Playground for collaborative environment in order to create a workflow in parallel by distributing nodes (i.e. tasks) to different people.
-
-## Basic idea
-
-1. Create a workflow in a large group, with empty nodes with only inputs and outputs defined
-2. Distribute the nodes to different people
-3. As people finish their tasks, they push the nodes to the repository, where CI takes care of the workflow execution
-
-More will follow...
+A template repository for setting up an environment where nodes for a workflow using `pyiron_workflow` can be developed by different people in parallel.
+
+Usage goes like so:
+- the team sets up a dummy workflow using placeholder-vwersions of the involved nodes
+- the team creates a repository using *this* repo as a template (especially anything located in `.github/` and `.ci_support/`)
+- each dev opens a branch + PR for her work
+- as soon as the `run_workflow` label is added to the PR, each push triggers workflow execution via actions.
+- the updated notebook is uploaded as a github action artifact (Actions -> select CI run -> Artifacts). Download, unzip and view locally.
diff --git a/nodes/time.py b/nodes/time.py
index 8aa303f..587ad11 100644
--- a/nodes/time.py
+++ b/nodes/time.py
@@ -2,4 +2,4 @@
 
 @Workflow.wrap.as_function_node("travel_time")
 def get_time(distance: float, speed: float) -> float:
-    return 10.
+    return 42.