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Writing 89 Tests for a Quantitative Trading Framework: Strategy and Trade-offs
29+ min ago (1037+ words) This creates a tension between two testing philosophies: We use both, choosing based on the indicator. The suite is organized into five files, each targeting a different layer: The dependency flows downward: indicators have no dependencies, risk and portfolio depend…...
I Built an AI Agent That Routes Our Inbound Requests. Here's How It Works
22+ min ago (701+ words) Here's how I built it and what I learned along the way. The core concept is simple. Instead of one big prompt that tries to do everything at once, the agent runs through four distinct steps. Each step produces structured…...
Why I debug my RAG pipeline stage by stage, not end to end
30+ min ago (301+ words) I had a working document retrieval pipeline. Fixed-size chunking, TF-IDF embeddings, FAISS index. Recall@10 was 0. 82 on Sci Fact. Good enough. Then I made one change: I swapped fixed-size chunking for sentence-based chunking. Recall dropped to 0. 68. My first instinct was to…...
Python Ecosystem: Layers, Toolchains, and Real-World Applications That Matter
2+ hour, 28+ min ago (720+ words) Python hit the highest TIOBE market share ever recorded by any programming language in July 2025. By February 2026, that number had pulled back to roughly 21. 81%. That six-month arc tells you more about the Python ecosystem than any ranked library list. This…...
Adding Persistent Memory to Local AI Agents with Mem0, Open Claw, and Ollama
13+ hour, 55+ min ago (1641+ words) Most AI coding assistants have a memory problem. User explains preferences, tests frameworks, suggests naming conventions, for the project they've been building for months, and the moment they close the tab, everything vanishes, and every session starts from zero." TLDR:…...
Sourcery AI Review: Worth It for Python Developers?
1+ hour, 55+ min ago (1682+ words) The bottom line: If your team writes primarily Python and values code readability, Sourcery is worth the $10/user/month. If you need broader language depth, cross-file analysis, or support for platforms beyond Git Hub and Git Lab, look at Code…...
KNF Scraper: 75 K+ Polish Financial Entities
1+ hour, 50+ min ago (631+ words) If you work in fintech compliance, you regularly need to answer: "Is this company licensed by the Polish financial regulator?" KNF - the Polish Financial Supervision Authority - is responsible for supervising banks, insurance companies, investment firms, payment institutions, and the capital…...
Karpathy's LLM Wiki: The Markdown Knowledge Base Pattern that Turns AI Memory into a Maintained Codebase
3+ hour, 16+ min ago (1259+ words) Teams frequently encounter a technical wall where a single, insightful chat session generates critical data, only for the model to lose that context within twenty-four hours. Analyzing the architecture of Karpathy's knowledge base approach reveals a sophisticated architecture for transforming…...
fcf Test Brings Single-Macro Unit Testing to C++
8+ hour, 54+ min ago (66+ words) Hacker Noon fcf Test Brings Single-Macro Unit Testing to C++ 104 Stories To Learn About Go 105 Stories To Learn About Functional Programming 100+ Free Pluralsight Courses to learn Python, Java, and Spring Boot 10 Websites to Learn Java Script for Beginners 104 Stories To…...
Walk-Forward Optimisation in Python, Step by Step | Hacker Noon
8+ hour, 57+ min ago (88+ words) Walk-forward optimisation is a way of tuning a trading strategy to the data it has already been trained on. Walk-Forward Optimisation in Python, Step by Step Building Backtest Zone & Scriptonomy How to Build a Personal Financial Assistant With MCP, Python,…...