I used to spend 10-15 minutes creating featured images for every blog post. Even with Python automation, I still had to open a CSV file and run terminal commands. Now it's completely hands-free. The New Workflow: Open a form on my phone → type the blog title → select category → hit submit. 30 seconds later, the image is generated, uploaded to MinIO, and saved in Airtable. Zero manual work. How It Works: 1. Airtable form submission triggers n8n webhook 2. n8n fetches the background image for that category 3. Calls my self-hosted Python API (running in Docker) 4. Python generates 1200×628 image with title + category overlay 5. Uploads to MinIO (self-hosted S3) 6. Airtable updates with the final image URL The Technical Challenge: Getting n8n to pass actual values to Python (not template variables) was tricky - I had to build a custom payload. The Python script handles everything: downloads the background, adds overlay, renders text with shadows, uploads to MinIO, and returns the URL to Airtable. (Full technical breakdown in the blog post) Two Versions Available: I built this with Airtable, but I also created a NocoDB version (free self-hosted alternative). Want the full breakdown? I documented everything with code samples, screenshots, and the complete workflow: 👉 Read the full tutorial on my blog The workflow, Airtable automation script, and Python code are now available in the n8n Template Library. 💬 Want automation like this for your setup? - Grab the template from the Template Library and deploy it yourself - Or book a Done-For-You service and I'll set it up for you Questions? Drop them below 👇