How to Become Real Good in Prompt Engineering

Last month, I spent 3 hours trying to write a decent cold email template. Three. Whole. Hours. The AI kept spitting out generic garbage that sounded like every other “Hey [FIRST_NAME], hope this email finds you well”… Then I changed one thing in my prompt. One thing. Suddenly, the AI was writing emails that actually … Read more

How to Structure Dagger Components So Your Build System Doesn’t Hate You

This document was adapted from Dagger Directives for a monorepo that uses Bazel Build, and is provided for ease of use in other organizations. Contents This document is extensive, and while each directive is simple, the broader architecture they promote may be unclear; therefore, an end-to-end example is provided to aid comprehension, and the underlying … Read more

Transformers, Finally Explained

After spending months studying transformer architectures and building LLM applications, I realized something: most explanations are overwhelming or missing out some details. This article is my attempt to bridge that gap — explaining transformers the way I wish someone had explained them to me. For an intro into what Large language model (LLM) means, refer … Read more

We Asked 14 Tech Bloggers Why They Write. Here’s What They Said

We interviewed a dozen(ish) expert tech bloggers over the past year to share perspectives and tips beyond Writing for Developers. The idea: ask everyone the same set of questions and hopefully see an interesting range of responses emerge. They did. You can read all the interviews here. We’ll continue the interview series (and maybe publish some book … Read more

This Python “Auto-Painter” Creates a New Universe Every Time You Run It

There’s a strange feeling that washes over you when you witness something you’ve created take on a life of its own. It’s not just pride; it’s a deep, almost philosophical resonance. That’s the feeling I’ve carried since my “Auto-Painter Robot Brain” completed its first masterpiece. What began as a simple coding exercise evolved into a … Read more

The TechBeat: Why 100 Percent Test Coverage is Not Possible — Lessons from Testing Banking and Healthcare Systems (1/1/2026)

How are you, hacker? 🪐Want to know what’s trending right now?: The Techbeat by HackerNoon has got you covered with fresh content from our trending stories of the day! Set email preference here. ## The Hidden Cost of AI: Why It’s Making Workers Smarter, but Organisations Dumber By @yuliiaharkusha [ 8 Min read ] AI … Read more

Lighthouse Scores Are an Architectural Signal, Not an Optimization Checklist

For a long time, I assumed that high Lighthouse scores were mostly the result of tuning. Compressing images, deferring scripts, fixing layout shifts, adjusting themes, swapping plugins, and repeating the cycle every time a new warning appeared. Over time, that assumption stopped matching what I was seeing in practice. The sites that consistently scored well … Read more