How DevNode Built an AI-Powered Project Idea Generator
Using n8n, Google Gemini 1.5 Pro, and low-code workflows to solve the "Blank Page Syndrome" for engineers — and turn the solution into a 24/7 lead generation asset.
Workflow Architecture
The Challenge
As an engineering-focused startup, we noticed a recurring problem among students and developers: "Blank Page Syndrome." Many talented engineers have the skills to build but struggle to find unique, industry-relevant project ideas.
We wanted to solve this by creating a tool that offers personalized project suggestions instantly — while also serving as a lead generation asset for DevNode Technologies.
The Solution — An Agentic AI Workflow
Instead of building a traditional static database of project ideas, we architected a dynamic AI agent using low-code automation. The entire system responds to a user input, generates a fresh idea, and logs the interaction — all without writing a backend from scratch.
- Core Engine n8n handles workflow orchestration — routing data between the frontend, the AI model, and the database through a single webhook-triggered flow.
- The Brain Google Gemini 1.5 Pro generates creative, context-aware project ideas based on the user's selected domain and difficulty — with a custom-engineered prompt that enforces a strict JSON output format.
- Database Google Sheets acts as a lightweight backend — logging every user request and the ideas generated, giving us a live view of demand and usage patterns.
- Frontend A minimal Vercel-hosted UI that collects user inputs and renders the AI response in real time — fast, globally distributed, and zero-maintenance.
How It Works
- The user selects their preferred domain (e.g., IoT, Web Dev, AI) and difficulty level on the Vercel UI.
- The n8n webhook captures the form submission and passes the structured input to the Gemini API with a carefully engineered system prompt.
- Gemini 1.5 Pro returns a unique project title, one-paragraph description, and tech stack recommendation — formatted as a strict JSON object.
- n8n logs the request and result to Google Sheets, then sends a 200 response with the generated idea back to the UI.
- The idea appears in the user's browser in real time — and their email goes into our nurture list.
We successfully deployed a fully functional AI Project Generator that serves as a 24/7 digital asset for DevNode. Students submit their domain and difficulty — and within seconds receive a tailored, industry-relevant project idea they can actually build. On the backend, every request is logged, giving us real-time insight into what engineers are most interested in building — free market research, automated.
This project demonstrates our ability to integrate Generative AI with Business Process Automation — rapidly, without unnecessary infrastructure overhead.
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