Stop building fragile Power BI reports with messy flat tables. Senior developer Ahmad Wael explains how to architect a scalable Enterprise Financial Model using Star Schema, Power Query transformations, and robust DAX logic. Learn why data profiling and single-direction filters are non-negotiable for performant, enterprise-grade business intelligence.
CodePen slideVars is a native tool that auto-detects CSS custom properties and creates interactive UI panels for demos. Learn how to implement slideVars.init(), handle scoped variables, and navigate common unit-handling gotchas. A pragmatic guide for senior developers looking to speed up front-end prototyping and documentation.
Handling future budget data in Semantic Models often leads to cluttered reports. Senior developer Ahmad Wael explains why physical Date Filter tables are superior to DAX hacks, offering a pragmatic SQL-based solution to toggle future data visibility without compromising performance or report readability.
Designing your career in 2026 requires more than a vertical climb. Ahmad Wael explores strategic product designer career paths, the importance of annual retrospectives, and how to avoid the “management trap” by refactoring your role for horizontal growth and AI-driven impact. Learn how to map your skills for the new year.
Explaining the critical fixes for special characters in the WooCommerce 10.5 REST API. If you have struggled with non-ASCII attribute names (Persian, Arabic, Chinese) failing to save or map correctly, this update is for you. Learn how to audit your existing workarounds and ensure your product variation syncs are stable.
Production ML failures often stem from hidden data leaks and time travel traps rather than poor modeling. Senior developer Ahmad Wael explains why perfect training metrics lie and how to debug data leakage, feature defaults, and silent population shifts to build robust, production-ready machine learning systems that survive the real world.
Federated Learning is shifting AI training from centralized servers to local devices. By moving the model to the data, developers can solve privacy silos and reduce latency. Senior developer Ahmad Wael explains the mechanics of Federated Averaging (FedAvg) and why keeping raw data local is the future of edge computing.
Ahmad Wael discusses the upcoming CSS :drag pseudo-class and ::drag-image pseudo-element. Learn how these native selectors can replace messy JavaScript event listeners, improve frontend performance, and simplify your WordPress UI development by moving interaction logic directly into your stylesheets where it belongs.
Generic language apps lack the feedback loops necessary for mastering complex languages like Mandarin. In this article, Ahmad Wael explains how to build a custom AI Language Tutor using n8n and multimodal LLMs. Learn to orchestrate speech-to-text, ElevenLabs, and Gemini for a high-fidelity learning experience that costs less than 1 euro monthly.
Supply Chain Data Science is set to be the most valuable domain for data scientists in 2026. Beyond the hype of LLMs, the physical world needs visibility and optimization. Learn how to bridge the gap between Python-based mathematical modeling and operational reality using tools like PuLP, Streamlit, and Lean Six Sigma.