RAG from Scratch with Python: understand how it works
Implement RAG in Python from scratch, no frameworks: chunking, embeddings, cosine similarity, retrieval and augmented prompts. Understand the pieces.
Posts about tutorial
How to Build AI Agents for Free (No-Code and Code Options)
Build AI agents for free: no-code platforms, low-code options, and open source frameworks. What to use for your situation and what free actually covers.
DataOps: how Netflix and Spotify manage data at scale
DevOps revolutionized software development. DataOps is doing the same for data. Practical guide with tools and real cases.
How to learn Power BI for free in 2026 (real path, no fluff)
Practical guide to learn Power BI from scratch without paying for courses. Free resources, learning path, and mistakes to avoid.
50 ChatGPT Prompts That Actually Work (2026)
50 tested prompts for work, study, coding, and creativity. Work on ChatGPT, Claude, DeepSeek and other LLMs. Copy, paste, and adapt to your case.
Cursor AI: Complete Guide to the AI-Powered IDE
What Cursor is, how it works, when to use it vs Copilot and Windsurf, updated 2026 pricing, and practical tips to get real value from day one.
Generative AI: What It Is and How It Works
What is generative AI and how it works. Real examples, types of generation (text, image, code), and its actual limits — explained without jargon.
Data Engineering Guide: From Excel to Professional Pipelines
What a Data Engineer is, what tools they use, what the real day-to-day looks like, and how to start if you come from Excel/Power BI.
DeepSeek: what it is and how to use it for free
Complete DeepSeek guide for 2026: free ChatGPT alternative. Web, mobile app, local install with Ollama, and key privacy considerations before you start.
Prompt Engineering: diagnose the failure before rewriting
Prompt engineering from a real 17-iteration experiment: the model knew the answer and discarded it. A 4-type failure taxonomy to stop iterating blindly.
Self-Hosting Guide: Control Your Data and Save Money
Why host your own tools, what stack to use, the best self-hosted alternatives, and when it's NOT worth it.
What Are AI Agents (explained without jargon)
Beginner's guide: what an AI agent is, how it differs from ChatGPT, real examples, and where to start.
What Is DAX in Power BI: Measures vs Columns
Practical DAX guide for Power BI: when to use measures vs columns, 5 core functions, filter context explained, and common mistakes FAQ.
What Is Power Query? Replace VLOOKUP in Excel
What Power Query is, when to use it instead of VLOOKUP, the 10 essential transformations, common mistakes, and an FAQ covering Excel 2016, Mac, and more.