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UUIDv4 vs UUIDv7 in PostgreSQL: A B-Tree Index Performance Deep Dive

UUIDv4 vs UUIDv7 in PostgreSQL: A B-Tree Index Performance Deep Dive

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4 min read
Why I Gave Up on Perfect Selectors and Asked GPT to Extract My Data

Why I Gave Up on Perfect Selectors and Asked GPT to Extract My Data

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4 min read
How We Optimized a Django Playwright Scraper to Save 60% on Rotating Proxy Bandwidth

How We Optimized a Django Playwright Scraper to Save 60% on Rotating Proxy Bandwidth

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4 min read
I Replaced a $300/month Automation Stack with n8n, FastAPI, and Docker

I Replaced a $300/month Automation Stack with n8n, FastAPI, and Docker

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8 min read
PII masking in Polars: MaskOps 2.0, and two metrics that lied to me

PII masking in Polars: MaskOps 2.0, and two metrics that lied to me

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4 min read
Chega de "Lista de Tarefas": Como criei uma automação para receber emails sobre tecnologia

Chega de "Lista de Tarefas": Como criei uma automação para receber emails sobre tecnologia

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3 min read
I built a free open-source alternative to OpenAI Operator — control your browser with Claude AI via Telegram

I built a free open-source alternative to OpenAI Operator — control your browser with Claude AI via Telegram

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1 min read
Why Your iPhone Video Fails as a Telegram Avatar (FFmpeg Fix)

Why Your iPhone Video Fails as a Telegram Avatar (FFmpeg Fix)

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4 min read
Rate Limits & Anti-Bots in Agentic Scraping

Rate Limits & Anti-Bots in Agentic Scraping

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5 min read
Why Your AI-Connected ERP Will Fail in Production And How to Fix It Before It Does

Why Your AI-Connected ERP Will Fail in Production And How to Fix It Before It Does

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4 min read
Stop Flying Blind: How to Build a Production-Grade Telemetry Layer for Self-Improving AI Agents

Stop Flying Blind: How to Build a Production-Grade Telemetry Layer for Self-Improving AI Agents

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9 min read
How to Format SQL Queries in Python: Best Practices, Gotchas, and Real-World Examples

How to Format SQL Queries in Python: Best Practices, Gotchas, and Real-World Examples

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6 min read
Why Your Python Docstrings Lie (And How to Fix It)

Why Your Python Docstrings Lie (And How to Fix It)

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2 min read
I built a job application assistant. The interesting part is what it refuses to do.

I built a job application assistant. The interesting part is what it refuses to do.

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6 min read
I Built a Web Page Summarizer with AI (and Why You Might Not Want To)

I Built a Web Page Summarizer with AI (and Why You Might Not Want To)

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4 min read
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