Things I've
built & learned

A full walkthrough of building a document-aware chatbot — from file ingestion to vector search to the live chat interface. No Python required, entirely in n8n.

How I built a Gmail automation that classifies, responds to, and routes emails using AI — and what I learned about edge cases along the way.

How I built a chat agent that answers customer order questions from a Google Sheet in plain language — and why this pattern works for small e-commerce teams.

Why I chose to self-host n8n instead of the cloud version, how I set it up on a Hetzner VPS using Coolify, and what I'd do differently. Under €4/month total.

How I automated 78% of a client's WhatsApp support inbox — order lookups, returns, FAQs, and escalations — using n8n, OpenRouter, and the WhatsApp Business API.

How I built a pipeline that writes a personalised script per prospect, generates an AI avatar video via HeyGen, and sends it by email — 50 personalised videos in 25 minutes.

A Python pipeline that pulls daily sales data, forecasts per-SKU demand using time series models, and sends a prioritised reorder list to Slack every morning. Zero stockouts since launch.

Plain HTML, CSS custom properties, 50 lines of vanilla JS, deployed on Coolify. Why I chose no framework, how the design system works, and what I'd do differently next time.