Articles & guides
Free resources written by our instructors to help you get started and go deeper.
Why Character-Level Span Evaluation Matters for RAG
Why aggregate RAG faithfulness scores hide the root cause of failures, and how character-level span evaluation pinpoints which pipeline stage broke.
Optimizing High-Throughput FastAPI & Go Microservices
Concurrency pitfalls and performance techniques for FastAPI (ML/Python) and Go (high-volume data plane) services at scale.
Hybrid Search: Combining Vector and Graph Database Indexes
Why neither vector search nor graph traversal alone is sufficient for enterprise retrieval, and how to combine them correctly.
Building Custom Model Context Protocol (MCP) Servers
How to expose enterprise data and tools to LLMs via typed MCP server primitives instead of prompt-stuffing.
Designing Stateful Multi-Agent Systems with LangGraph
How LangGraph's graph-based state model solves the hardest problem in multi-agent pipelines: shared mutable state that survives failures and human-in-the-loop pauses.
Breaking Free from Chunk ID Dependency: Why Most RAG Evaluation Is Broken
Most RAG benchmark datasets break the moment you change your chunking strategy. Learn why ephemeral Chunk IDs ruin evaluation data and how character-level anchoring enables true apples-to-apples A/B testing for your retrieval pipeline.
How to Learn Python in 2026 (The Right Way)
Python is the most beginner-friendly programming language in the world. Here's a clear, opinionated roadmap for learning it effectively — without wasting months on the wrong things.
Why Calculus Matters More Than You Think
Most people think calculus is just a painful school subject you forget immediately after the exam. In reality, it's the mathematical language that describes how everything in the universe changes — and its ideas are everywhere once you know how to look.
The Web Developer Roadmap for 2026
With hundreds of frameworks and tools competing for your attention, knowing where to start in web development is genuinely hard. This roadmap cuts through the noise and gives you a clear, honest path.
Building Physics Intuition: How to Think Like a Physicist
Memorising formulas won't make you good at physics. Building intuition will. Here's how to develop a genuine feel for the physical world — and why it changes how you see everything.
Data Structures & Algorithms: A Beginner's Honest Guide
Every great programmer understands data structures and algorithms. Here's how to start — without the overwhelm, without the gatekeeping.
AI Explained Simply: What It Is and Why It Matters
Artificial intelligence sounds intimidating. It doesn't have to be. Here's a plain-English breakdown of what AI actually is, how it works, and why it's reshaping every industry.