Automated Daily Factoid Delivery System

This n8n workflow automates the process of subscribing users to receive daily, weekly, or surprise factoids about their chosen topic. It begins with users submitting a subscription form, which adds them to an Airtable database. A scheduled trigger runs every morning at 9 AM to identify which users are due to receive their facts based on their preferred interval. For each subscriber, the workflow generates a unique factoid using an AI content generator, creates a related illustration with an AI image model, and compiles an email. The email, delivered via Gmail, includes the fact, an image, and an unsubscribe link. Additionally, the workflow supports user unsubscription through a form and manages subscriber status updates. The system is designed for high flexibility, concurrency, and automation, making it ideal for delivering engaging daily content to users on a recurring basis.