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Why HTTP 200 Lies: Testing Payment Webhook Idempotency & State Invariants in Local Dev

Why HTTP 200 Lies: Testing Payment Webhook Idempotency & State Invariants in Local Dev

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3 min read
CSS Container Queries In Production: Where They Shine And Where Media Queries Still Win

CSS Container Queries In Production: Where They Shine And Where Media Queries Still Win

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10 min read
Building a High-Performance Daily Ledger API: Asynchronous Concurrency & Data Validation with FastAPI

Building a High-Performance Daily Ledger API: Asynchronous Concurrency & Data Validation with FastAPI

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4 min read
The Command Injection Fix Cursor Writes Still Runs Code (CWE-78)

The Command Injection Fix Cursor Writes Still Runs Code (CWE-78)

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5 min read
What the browser can actually tell you about your hardware (and what it can't)

What the browser can actually tell you about your hardware (and what it can't)

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3 min read
Day 179 of Learning MERN Stack

Day 179 of Learning MERN Stack

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1 min read
I built 59 free browser-based dev tools in vanilla JS — here's what I learned

I built 59 free browser-based dev tools in vanilla JS — here's what I learned

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2 min read
How Coin Toss Statistics Actually Work: A Developer's Field Notes on Two-Outcome Generators

How Coin Toss Statistics Actually Work: A Developer's Field Notes on Two-Outcome Generators

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7 min read
Your Browser Automation Clicks Might Be Landing 25% Off — And Nothing Will Tell You

Your Browser Automation Clicks Might Be Landing 25% Off — And Nothing Will Tell You

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6 min read
Node.js function that handles a wallet funding. Notice the atomic transaction

Node.js function that handles a wallet funding. Notice the atomic transaction

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1 min read
A stale response can quietly break a recommendation tool

A stale response can quietly break a recommendation tool

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2 min read
I Let AI Write My Code — Here Are 10 Things I Never Let It Do Without Checking

I Let AI Write My Code — Here Are 10 Things I Never Let It Do Without Checking

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5 min read
I built Launch Control to show the next legitimate action

I built Launch Control to show the next legitimate action

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1 min read
Kademlia: Algo That Turned XOR Distance Into a Network

Kademlia: Algo That Turned XOR Distance Into a Network

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6 min read
The header I trusted was lying by accident

The header I trusted was lying by accident

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8 min read
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