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⚡ AI Lessons

Dev.to · KazKN
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2mo ago
I Built the Wrong Scraper First. The Data Looked Clean and Was Still Useless.
A build-in-public failure story about why marketplace scrapers need state, sold signals, seller context, condition, and price history instead of only clean prod

Dev.to · KazKN
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2mo ago
Your Scraper Returns 200 OK and Still Lies: 7 Marketplace Checks I Use
A practical checklist for making marketplace scrapers safer: sold state, disappearance, seller country, condition, precision filters, price history, and review

Dev.to · KazKN
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4mo ago
Steal My Workflow: Scraping the iOS App Store to Find High-LTV Subscription Apps
I remember the exact moment my third iOS app flatlined. It was 2:00 AM on a Tuesday. I was staring...

Dev.to · KazKN
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5mo ago
Building a Resilient Vinted Data Pipeline: Overcoming Bot Detection with Apify
Building a Resilient Vinted Data Pipeline: Overcoming Bot Detection with Apify When...

Dev.to · KazKN
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5mo ago
I Built a Vinted Price Index for Luxury Bags at 2 AM, and It Broke My Production Server
I Built a Vinted Price Index for Luxury Bags at 2 AM, and It Broke My Production Server It...

Dev.to · KazKN
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
6mo ago
Cross-Border Price Comparison: Automate With Scraping in 2026
Ever wondered why the same pair of sneakers costs €45 on Vinted France but only €28 on Vinted...
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