An IRT-shaped practice score is not an IQ test
IntelligenceMax updates a learner estimate after every answer and displays it on the familiar IQ scale. The arithmetic resembles item response theory.…
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An IRT-shaped practice score is not an IQ test
IntelligenceMax updates a learner estimate after every answer and displays it on the familiar IQ scale. The arithmetic resembles item response theory.…
Disconnected: A 24-Hour Stress Test for Humanity 🥸
This isn't a wish for the internet to stop — just a moment to imagine what it'd mean to breathe without it. Not everyone, but a huge percentage of the…
A lesser used feature of template litrals in Js
TLDR: another way of calling a function This is about one of the more advanced ES6 features called Tagged Template Literals. -> Normal Template Lit…
#1. Detach yourself from your code
7 Unconventional (But Surprisingly Effective) Ways to Get Better at Coding Cesar Aguirre Cesar Aguirre Cesar Aguirre Follow Jul 13 7 Unconventional (B…
The curious case of mathematical precision & legacy JS vs ES6.
Troubles faced with precision 0.3 - 0.2 !== 0.2 - 0.1 because computers understand Base-2 i.e. binary. To store a decimal number, it must be converted…
Stop Writing try/catch in Every Controller
When I first started building APIs with Express.js, every async controller looked the same. I would write a try block, perform some database operation…
I am that I am.
We all hear about "Not comparing yourself to others" and that "comparing yourself is the thief of joy". To be honest, I agree and it's strange that I …
Architecture-first vs problem-first: what five months of over-engineering looks like
Why build something? And what if nobody ends up using it? There are good answers to the first one. You build because you need a thing that doesn't exi…
Are Today's Engineers Getting Soft?
Cultivating Genius: The Power of Constraints in Modern Engineering Introduction In the opulent landscape of modern software development, we revel in a…
Stop Treating Cloud Databases Like Magic!
Stop Treating Cloud Databases Like Magic! A Guide to True Scalability Introduction In the rush to adopt "cloud-native" architectures, many organizatio…
Understanding the Building Blocks of C Programming
Before learning about programming in C ,lets understand what does programming means ? Programming is set of logically grouped instructions given to co…
I Rebuilt My Courses on the Science of Learning (2026)
I had already built the courses. Interactive, with a live code editor, quizzes, diagrams, bilingual. I was rather proud of them. Then I read an MIT EE…
I teach DevOps. Two weeks later, they can't do it. So we're building the practice layer.
A note from Manabi's founder, Tobi. I teach DevOps for a living: Linux, Git, Docker, CI/CD, Terraform, Kubernetes. I'm good at the teaching part. Here…
Starting My AI Journey: Claude 101 and AI Fluency (Framework and Foundations)
Welcome! I'm Shreya, a data professional, and I started this blog to document my journey into AI and share every lesson, failure, and breakthrough I e…
I Was Basically Gaslighted Into Learning DNS... and I'm Glad I Was
I have a confession. I was strongly encouraged (read: lovingly gaslighted ) into writing this article. At first, I thought, "Why me? Can't someone els…
Quantum Teleportation Could Help Solve Complex Problems
Quantum teleportation often sounds like something from a science fiction movie. Many people imagine humans or objects instantly moving from one place …
wide CSV 여러 개를 EAV로 모아 gold mart 만들기
wide CSV 여러 개를 EAV로 모아 gold mart 만들기 현실의 데이터 소스는 한 가지 모양으로 오지 않는다. 같은 의미의 값도 어떤 파일에서는 생산수량 , 다른 파일에서는 units , 또 다른 파일에서는 made 로 올 수 있다. 온도도 어떤 곳은 섭씨, …
schema drift를 fail이 아니라 warn으로 둔 이유
schema drift를 fail이 아니라 warn으로 둔 이유 데이터 파이프라인에서 source schema가 바뀌는 순간은 애매하다. 무조건 무시하면 운영자는 입력 구조가 바뀐 사실을 모른다. 반대로 모든 schema 변화를 실패로 처리하면, 정상적인 컬럼 추가까지…
source_hash로 같은 입력 재처리를 안전하게 skip하기
source_hash로 같은 입력 재처리를 안전하게 skip하기 작은 데이터 파이프라인도 한 번만 실행된다고 가정하면 금방 거짓말이 된다. 실제로는 같은 파일을 다시 실행할 수 있다. 실패한 run을 재시도할 수도 있고, 과거 날짜를 backfill할 수도 있고, 운영…
What I Learned About Solana Token Extensions
As a Web2 developer, I always thought tokens were just digital assets you could send and receive. After exploring Solana's Token-2022 Program, I reali…
Closed World Innovation: Stop Telling People to "Think Outside the Box." There Is No Box.
"Think outside the box!" Great advice. Incredibly helpful. One small problem: nobody knows where the box is. What even is creativity, anyway? Before w…
The Junior Engineer Is Not Disappearing. The Way We Train One Is.
You have seen the posts. AI is coming for the junior engineer first. Why hire someone to write code a model can write for free? The career ladder's bo…
My First Post
Big Howdy, I’m starting a blog. That sentence feels weirdly dramatic for what this is to me. The plan is to write about engineering, personal projects…
The 8-Week AWS Solutions Architect Associate Study Plan I Actually Used (No Fluff)
The 8-Week AWS SAA-C03 Study Plan I Used to Score 812 While Working Full-Time Every AWS Solutions Architect Associate study plan on the internet seems…
Day 5 of 30: Message Queues and Why Not Everything Needs an Instant Response
Day 1: the big picture. Day 2: databases. Day 3: caching. Day 4: load balancing, and how the load balancer itself becomes a new single point of failur…
A RabbitMQ Upgrade Exposed the Reliability Assumptions Hidden in Our Messaging System
The RabbitMQ upgrade looked like a straightforward infrastructure task: move from RabbitMQ 3.X to 4.X, provision the new broker, review the client set…
Why Developers Should Think Beyond Documentation
When learning a new technology, most of us follow a familiar path. We start with the official documentation. Then we search GitHub repositories. We re…
What made you think, "Why hasn't anyone built a good solution for this yet?" Текст
**_Hi everyone! We're three 16-year-old friends learning to code. Instead of building "just another app," we want to solve a real problem that develop…
What I Learned Building 2 Side Projects in Public
The Real Lesson I spent 6 months building in solitude before I understood: code quality doesn't matter if nobody wants the product. Here's what buildi…