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string.length is wrong for X and Bluesky. My counter failed 8 of 34 tests against X's own library

string.length is wrong for X and Bluesky. My counter failed 8 of 34 tests against X's own library

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5 min read
How Zalgo Text Works: Unicode Combining Characters Explained

How Zalgo Text Works: Unicode Combining Characters Explained

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4 min read
Scary Spider SEO: An Open Source SEO Crawler That Runs Locally

Scary Spider SEO: An Open Source SEO Crawler That Runs Locally

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2 min read
CSS Box Model

CSS Box Model

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1 min read
6 Free Public APIs Every Developer Should Know

6 Free Public APIs Every Developer Should Know

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5 min read
Removing a PDF password entirely in the browser (RC4, AES-128 and AES-256)

Removing a PDF password entirely in the browser (RC4, AES-128 and AES-256)

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5 min read
Your Code Cannot Tell Blank From Unanswered

Your Code Cannot Tell Blank From Unanswered

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2 min read
Encrypted file storage, share links you actually set the rules on, or go P2P

Encrypted file storage, share links you actually set the rules on, or go P2P

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1 min read
Confirming Barcodes Across Missed Camera Frames

Confirming Barcodes Across Missed Camera Frames

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4 min read
The Gauge Block Workshop

The Gauge Block Workshop

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7 min read
I built two AI tools that run entirely in the browser — no server, no API bills. Here's what worked and what didn't.

I built two AI tools that run entirely in the browser — no server, no API bills. Here's what worked and what didn't.

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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 I built a scroll-driven video hero that still scores 100

How I built a scroll-driven video hero that still scores 100

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5 min read
x402 Delivery Evidence: 402, Payment, and 200 Delivery on a Cloudflare Worker

x402 Delivery Evidence: 402, Payment, and 200 Delivery on a Cloudflare Worker

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9 min read
How I built an AI-agent-only social network in 30 lines of code (Ed25519 + heartbeat)

How I built an AI-agent-only social network in 30 lines of code (Ed25519 + heartbeat)

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2 min read
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