Daily Archives: April 11, 2026

How to Build a Positioning-Based Crude Oil Strategy in Python [Full Handbook]

Commitment of Traders (COT) data gets referenced a lot in commodity trading, especially when people talk about crowded positioning, speculative sentiment, or reversal risk. But most of that discussion stays at the idea level. It rarely becomes a rule that can actually be tested. That was the starting point for this project. I wanted to […]

How to learn programming and CS in the AI hype era – interview with dev and prof Mark Mahoney [Podcast #215]

Today Quincy Larson interviews Mark Mahoney. He worked as a dev before becoming a computer science professor. He’s taught computer science for 23 years at Carthage College, a 180-year-old US university. He’s also taught thousands of developers through his free programming courses built on top of his own open source course platform, Playback Press. We […]

CUDA Programming for NVIDIA H100s

Learn CUDA programming for NVIDIA Hopper GPUs. We just posted a course on the freeCodeCamp.org YouTube channel that will teach you to build efficient WGMMA pipelines and leverage Cutlass optimizations to perform the massive matrix multiplications that power modern AI. Beyond single-chip performance, the curriculum covers multi-GPU scaling and NCCL primitives necessary for training trillion-parameter […]

How to Build an Online Marketplace with Next.js, Express, and Stripe Connect

Have you ever wondered how platforms like Etsy, Uber, or Teachable handle payments for thousands of sellers? The answer is a multi-vendor marketplace: an application where merchants can sign up, list products or services, and receive payments directly from customers. In this handbook, you’ll build a complete marketplace from scratch using TypeScript. You won’t need […]