From AI Prompts to Real-World Adventures: Building OUTSIDE//OS

October 10, 2026 · Dev.to

What 6,000 Pharmacy Transactions Taught Me About Discounts
A 25% discount cut this pharmacy's margin from 31% to 8% and did not sell a single extra unit per order. That was the cl
Backend API Feature Flags: Stable Rollout Targeting for Checkout Reconstruction
A support engineer cannot reconstruct a failed checkout from a rollout percentage alone. In a Node.js feature flags desi
Stop Guessing Your RAG Hyperparameters: Why I Built a Local-First Benchmarking Framework
Stop Guessing Your RAG Hyperparameters: Why I Built a Local-First Benchmarking Framework Building a "Hello World" Retrie
Our AI Coding Agent Burned Real Money Fixing a Bug a Human Would Have Caught in Five Minutes
We gave an autonomous coding agent a real ticket: an off-by-one error in a pagination function, the kind of bug a mid-le
Your official guide to cozying up for fall
In this edition of BI Today, we're going over the best items for the autumnal season.