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From 100 Logins to 1: Cut E2E Test Time by 78%

From 100 Logins to 1: Cut E2E Test Time by 78%

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4 min read
I built a distributed compute grid where your idle laptop runs ML jobs — the orchestrator behind it

I built a distributed compute grid where your idle laptop runs ML jobs — the orchestrator behind it

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5 min read
RAG-Based Testing Series — Part 3: Faithfulness & Hallucination Detection

RAG-Based Testing Series — Part 3: Faithfulness & Hallucination Detection

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9 min read
I Monitored 10,000 AI API Calls. Here's What Went Wrong.

I Monitored 10,000 AI API Calls. Here's What Went Wrong.

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5 min read
I Built an LSM-Tree in Pure Python and Finally Understood How RocksDB and Cassandra Handle Millions of Writes

I Built an LSM-Tree in Pure Python and Finally Understood How RocksDB and Cassandra Handle Millions of Writes

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6 min read
I Tracked Every Penny I Spent on AI APIs for a Month

I Tracked Every Penny I Spent on AI APIs for a Month

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2 min read
Top 12 Python Interview Problems for Data Engineers, With Answers

Top 12 Python Interview Problems for Data Engineers, With Answers

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8 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
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
Apache Spark Query Optimization on Databricks: Catalyst, AQE, and Photon Engine

Apache Spark Query Optimization on Databricks: Catalyst, AQE, and Photon Engine

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10 min read
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