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Node.js

A JavaScript runtime built on Chrome's V8 JavaScript engine.

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Two actors want the same reward row, and only the one that gets it back from the UPDATE may call Stripe

Two actors want the same reward row, and only the one that gets it back from the UPDATE may call Stripe

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6 min read
A listing id that ignores the query string, and the trailing slash that would have made every room new

A listing id that ignores the query string, and the trailing slash that would have made every room new

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4 min read
I Built a Customizable CLI for Node.js Backends

I Built a Customizable CLI for Node.js Backends

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4 min read
Eleven exits from one function, and the five that must not remember anything

Eleven exits from one function, and the five that must not remember anything

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5 min read
Scraping Google News search results with the public RSS feed (no API key, no browser)

Scraping Google News search results with the public RSS feed (no API key, no browser)

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3 min read
allowPrivateDomains is the wrong default everywhere except inside a guard

allowPrivateDomains is the wrong default everywhere except inside a guard

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5 min read
17 Issues, 9 Years, Zero PRs: NestJS's Module-Scoped Guards Problem and How Holu Solves It

17 Issues, 9 Years, Zero PRs: NestJS's Module-Scoped Guards Problem and How Holu Solves It

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5 min read
API Performance Profiler: Live route latency directly inside VS Code ⚡

API Performance Profiler: Live route latency directly inside VS Code ⚡

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1 min read
Fixing Claude Opus 5.5 Video API Drift: 40% Scene Consistency

Fixing Claude Opus 5.5 Video API Drift: 40% Scene Consistency

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9 min read
Database Concurrency 101: Optimistic vs. Pessimistic Locking

Database Concurrency 101: Optimistic vs. Pessimistic Locking

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3 min read
Building a Real Multi-Step AI Agent with Gemini Function Calling (Not Just a Chatbot)

Building a Real Multi-Step AI Agent with Gemini Function Calling (Not Just a Chatbot)

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2 min read
How to use a market data API in a web app without exposing your API key

How to use a market data API in a web app without exposing your API key

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7 min read
Measuring How Cost Scales by Counting Instead of Timing

Measuring How Cost Scales by Counting Instead of Timing

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5 min read
Microservices Part 4: Cold Starts vs Always On

Microservices Part 4: Cold Starts vs Always On

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5 min read
Most Recruiter Bots Are Goldfish. I Gave Mine Hindsight.

Most Recruiter Bots Are Goldfish. I Gave Mine Hindsight.

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7 min read
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