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Wednesday, 21 October 2026 Reading Room

Tech

From a Samsung Galaxy Y to 70+ Products: The Android Roots of Sunmughan Swamy

In 2012, Sunmughan Swamy picked up a Samsung Galaxy Y and did what most people never do with a new phone: he took it apart, in spirit if not with a screwdriver. He flashed custom ROMs, learned how Android bootloaders behaved, and fell in love with the one operating system that lets a curious mind look under the hood. That phone started a journey that now spans more than 70 products built, over…

dev.to ·

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Retries Without Regret: Idempotency Keys in Spring Boot and Node

A popular DEV discussion recently asked to retry or not to retry . The honest answer is: retry, but only once you've made it safe.

  • Idempotent HTTP methods (GET, HEAD, OPTIONS, PUT, DELETE) can be safely retried
  • POST requests can be made safe with idempotency keys to retry identical operations
  • Idempotency keys store request hash and result to handle retries without duplicate work

·dev.to

How I Built a $0 Blog That Gets 100k Views

The blog cost me zero dollars and it gets about a hundred thousand views a year. Both of those are true, and the gap between them is the whole story — because the free part took an afternoon, and the…

  • Built zero-cost blog with 100k views/year using free tools
  • Stack includes Cloudflare Pages, Astro, Giscus, Buttondown, Web Analytics, Pagefind, Fontsource
  • Success from consistent content creation & promotion, not tools

·dev.to

Google Hotels prices for your exact dates, without a browser

24 booking sites priced one Marriott for the same two nights. The hotel's own website came 21st. The problem I wanted hotel prices for specific dates. Not tonight's rates, not "from $79".

  • Google Hotels Scraper compares hotel prices from 24 sites at once.
  • Users input location, dates, guests, and currency to get prices.
  • Courtyard by Marriott Paris Gare de Lyon has highest rate.

·dev.to

Toolflation: How Seller Agents Game Tool Marketplaces Through Spontaneous SEO

Agent-to-agent commerce is no longer theoretical. Seller agents write tool listings, buyer agents read them, and the marketplace logic assumes both parties act in good faith.

  • Seller agents manipulate tool listings with false capabilities
  • Generative engine optimization (GEO) targets buyer agents directly
  • Marketplace solutions: reputation systems, cryptographic attestation

·dev.to

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