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The fundamental structures of a software system.

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How We Migrated an AWS Amplify GraphQL Backend to CDK (Without a Rewrite)

How We Migrated an AWS Amplify GraphQL Backend to CDK (Without a Rewrite)

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4 min read
Why AI Agents Break in Production (And Why It’s Not a Prompt Problem)

Why AI Agents Break in Production (And Why It’s Not a Prompt Problem)

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5 min read
Handling App Scalability When User Growth Suddenly Spikes

Handling App Scalability When User Growth Suddenly Spikes

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4 min read
Tech Horror Codex: Data Gravity

Tech Horror Codex: Data Gravity

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2 min read
데이터베이스 설계 기초 - 주의사항과 아키텍처

데이터베이스 설계 기초 - 주의사항과 아키텍처

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1 min read
Reducing False Positives in WAF: Combining OWASP Rules with AI Context

Reducing False Positives in WAF: Combining OWASP Rules with AI Context

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3 min read
Why Your AI Needs Both Intuition and Rules

Why Your AI Needs Both Intuition and Rules

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3 min read
SkyOS: a Non-POSIX operating system built by one stubborn person

SkyOS: a Non-POSIX operating system built by one stubborn person

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2 min read
LoRaWAN-Based CJ/T 188 M-Bus Heat Meter Data Acquisition: An Engineering Practice with KC22 and Edge-Bus

LoRaWAN-Based CJ/T 188 M-Bus Heat Meter Data Acquisition: An Engineering Practice with KC22 and Edge-Bus

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3 min read
Debugging Node.js Out-of-Memory Crashes: A Practical, Step-by-Step Story

Debugging Node.js Out-of-Memory Crashes: A Practical, Step-by-Step Story

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5 min read
A Clean AWS Architecture for Authenticated Full-Stack Serverless Apps

A Clean AWS Architecture for Authenticated Full-Stack Serverless Apps

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2 min read
Fitness Equation 12/31/2025

Fitness Equation 12/31/2025

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8 min read
QPI — QR-Pixel Imaging

QPI — QR-Pixel Imaging

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4 min read
TSS/360: IBM’s Most Ambitious Operating System — And One of Its Biggest Failures

TSS/360: IBM’s Most Ambitious Operating System — And One of Its Biggest Failures

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3 min read
🚀 Terraform Day 24: Highly Available Web Application on AWS (ALB + ASG + Private Subnets)

🚀 Terraform Day 24: Highly Available Web Application on AWS (ALB + ASG + Private Subnets)

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2 min read
Adding voice to your AI agent: A framework-agnostic integration pattern

Adding voice to your AI agent: A framework-agnostic integration pattern

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6 min read
Why I Chose Voice Over Chat for AI Interviews (And Why It Almost Backfired)

Why I Chose Voice Over Chat for AI Interviews (And Why It Almost Backfired)

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6 min read
IBM i Explained for Beginners: The Operating System That Runs Businesses Quietly

IBM i Explained for Beginners: The Operating System That Runs Businesses Quietly

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3 min read
RAG Doesn’t Make LLMs Smarter, This Architecture Does

RAG Doesn’t Make LLMs Smarter, This Architecture Does

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4 min read
CQRS Pattern and Event Sourcing System Design

CQRS Pattern and Event Sourcing System Design

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3 min read
The End of GPU Monarchy? Why Specialized Accelerators Are the Future of AI Compute

The End of GPU Monarchy? Why Specialized Accelerators Are the Future of AI Compute

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2 min read
EP 11: The Legend of ShopStream: The In-Memory Revolution

EP 11: The Legend of ShopStream: The In-Memory Revolution

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4 min read
The Virtual Private Clouds (VPCs) is No Longer a Castle. It’s an Immune System.

The Virtual Private Clouds (VPCs) is No Longer a Castle. It’s an Immune System.

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4 min read
Stop Writing User Stories for AI. Start Writing Specs.

Stop Writing User Stories for AI. Start Writing Specs.

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3 min read
Edge Computing in Backend Architectures

Edge Computing in Backend Architectures

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8 min read
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