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I’m Darshan, a software engineer, founder and builder from India. I spend most of my time building products, experimenting with AI, automating things. I’m joining DEV.to to share what I’m learning while building. Expect posts about: AI-assisted development Building SaaS products Backend & system design Making AI-generated code reliable and secure Interesting tools and workflows Things that…

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Your webhook handler was slow, so Shopify sent it again

The server reboots at two on a Saturday morning for a security update, which is what it's supposed to do. The app doesn't come back, because nobody told the process manager to start it on boot.

  • Shopify resends webhooks if app response exceeds five-second limit
  • Duplicate records occur when server takes too long to acknowledge
  • Self-hosted apps at risk due to downtime and lack of resilience

Run Android Tests on Real Phones in GitHub Actions

Emulators in CI are fine until your app cares about being on a real device. Once a sensor check or hardware-specific behaviour enters the picture, a green pipeline stops meaning much.

  • Run Android tests on real devices in GitHub Actions for hardware-specific behavior.
  • Set up a rack of real Android phones in Singapore accessible via adb from a hosted runner.
  • Use secrets for adb endpoint and tokens, employ setup-android action for latest platform-tools.

The 12 kubectl Queries We Run Before Every Cloud Cost Review

Originally published on the Professional IT Services blog . Twelve queries show what a Kubernetes cluster costs and where it wastes money: nodes and taints, requests and limits, real usage, top pods…

  • 12 specific kubectl queries essential for cloud cost review
  • Master node lacks instance-type label affecting price mapping
  • May 2026 review reduced CPU limits by 27.3% saving €33.95/month

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