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A 429 Without Retry-After Is a Bug: How I Rate Limit Django APIs With a Redis Token Bucket

A 429 Without Retry-After Is a Bug: How I Rate Limit Django APIs With a Redis Token Bucket

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10 min read
What Is OTP SMS? How Mobile Verification Works

What Is OTP SMS? How Mobile Verification Works

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16 min read
The Million-Dollar Unit Trap in SEC Filing Ratios

The Million-Dollar Unit Trap in SEC Filing Ratios

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4 min read
Give Claude or Cursor live TikTok, YouTube, Reddit and X data with one MCP URL

Give Claude or Cursor live TikTok, YouTube, Reddit and X data with one MCP URL

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3 min read
I built an API to generate OG images, screenshots, and PDFs without managing Puppeteer/Playwright infrastructure

I built an API to generate OG images, screenshots, and PDFs without managing Puppeteer/Playwright infrastructure

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3 min read
How to get a company's open jobs straight from Greenhouse, Lever or Ashby

How to get a company's open jobs straight from Greenhouse, Lever or Ashby

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4 min read
Online Step Counter Without App: How Web Pedometers Work

Online Step Counter Without App: How Web Pedometers Work

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6 min read
Nine Ways to Buy the Same Seedance 2.5 Clip — and the 27 Credit Trap

Nine Ways to Buy the Same Seedance 2.5 Clip — and the 27 Credit Trap

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4 min read
MCP Sampling: When the Server Calls the Client Model

MCP Sampling: When the Server Calls the Client Model

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3 min read
My #travel 'Top Posts' Had a Median of 685 Likes and Nothing Older Than 28 Hours

My #travel 'Top Posts' Had a Median of 685 Likes and Nothing Older Than 28 Hours

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6 min read
Testing SMS OTP sign-up flows with real phone numbers (Python example)

Testing SMS OTP sign-up flows with real phone numbers (Python example)

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2 min read
Find open federal grants a nonprofit can apply for, with award amounts and deadlines, in a CSV (Grants.gov API, Python, no key)

Find open federal grants a nonprofit can apply for, with award amounts and deadlines, in a CSV (Grants.gov API, Python, no key)

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8 min read
Before your payment webhooks go live: a 12-point production checklist

Before your payment webhooks go live: a 12-point production checklist

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5 min read
Eight public job-board APIs you can read without scraping (and the trap in each)

Eight public job-board APIs you can read without scraping (and the trap in each)

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5 min read
The EDI 180, Decoded: A Return Is a Negotiation, Not a Credit Memo

The EDI 180, Decoded: A Return Is a Negotiation, Not a Credit Memo

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4 min read
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