Built a tool that predicts how my Shopify customers will respond before I make a change. Now has a public demo, no signup needed. Got tired of "best practices" that had nothing to do with my actual store. So I built Mirra. It connects to your Shopify store, clusters your real customers into behavioral segments, and lets you ask plain English questions like "what happens if I run 20% off for customers who haven't ordered in a while." You get a prediction based on your own da...