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I measured M-Pesa STK Push polling lag on a real device. The variance will ruin your UX.

I measured M-Pesa STK Push polling lag on a real device. The variance will ruin your UX.

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3 min read
Why django-admin startproject Is a Trap

Why django-admin startproject Is a Trap

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3 min read
My Plan Before Coding

My Plan Before Coding

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2 min read
The agent that forgets everything and remembers everything

The agent that forgets everything and remembers everything

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3 min read
From Chaos to Clarity

From Chaos to Clarity

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3 min read
I Built an AI That Analyzes Your Pet's Behavior — Here's the Architecture

I Built an AI That Analyzes Your Pet's Behavior — Here's the Architecture

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4 min read
Partial Indexes and Expression Indexes in PostgreSQL: The Query Optimization Patterns That Cut Our Mobile API P99 Latency by 80%

Partial Indexes and Expression Indexes in PostgreSQL: The Query Optimization Patterns That Cut Our Mobile API P99 Latency by 80%

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3 min read
Dart Isolates in Depth — Background Processing, Worker Pools, and compute()

Dart Isolates in Depth — Background Processing, Worker Pools, and compute()

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6 min read
Everyone, say “hi” again to Rails Icons 👋

Everyone, say “hi” again to Rails Icons 👋

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2 min read
How I Stopped Retry Storms from Destroying My Scraping Budget

How I Stopped Retry Storms from Destroying My Scraping Budget

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3 min read
Why we still build with Ruby in 2026

Why we still build with Ruby in 2026

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3 min read
Stop Crashing Your Browser: How I Built a Server-Side Engine to Generate 1 Million SQL Rows Instantly

Stop Crashing Your Browser: How I Built a Server-Side Engine to Generate 1 Million SQL Rows Instantly

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2 min read
It Might Already Be Too Late to Fix This

DEV Weekend Challenge: Earth Day

It Might Already Be Too Late to Fix This

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4 min read
Font Files in Frontend: A Practical Guide Every Developer Should Know

Font Files in Frontend: A Practical Guide Every Developer Should Know

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4 min read
My First Paying Customer Hit a Bug 14 Times in a Row — Here's What I Found

My First Paying Customer Hit a Bug 14 Times in a Row — Here's What I Found

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5 min read
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