This story was originally published on HackerNoon at: https://hackernoon.com/the-quiet-bottleneck-in-your-symfony-app-fragmented-indexes-and-random-uuids.
Random UUIDs silently fragment your database and slow down inserts. Learn how UUID v7, ULIDs, and Symfony’s Uid component dramatically boost performance.
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This story was written by: @mattleads. Learn more about this writer by checking @mattleads's about page, and for more stories, please visit hackernoon.com.

Random UUIDs silently fragment your database and slow down inserts. Learn how UUID v7, ULIDs, and Symfony’s Uid component dramatically boost performance.

This story was originally published on HackerNoon at: https://hackernoon.com/i-spent-30-days-vibe-coding-an-mvp-burned-$127-broke-everything-and-still-found-product-market.
I have recently been diving into the world of vibe coding and I thought of cataloging my experience for the benefit of others.
Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #vibe-coding, #what-is-vibe-coding, #ai, #vibe-coding-wins, #market-ready-product, #vibe-coding-replit, #ai-product-marketing, #hackernoon-top-story, and more.

This story was written by: @renjitphilip. Learn more about this writer by checking @renjitphilip's about page, and for more stories, please visit hackernoon.com.

I spent 30 days building a financial planning tool for founders by “vibe coding”. Made every mistake possible. Burned through $127 in Replit credits. Got calculations wrong by 20%. Watched 23 "interested" founders become 2 signups. But I also learned that: (1) AI struggles with precision calculations, (2) founders don't want another spreadsheet—they want advice, and (3) sometimes less is more. One founder offered $50/month for the simplified version. That's validation enough to keep going. This was a great learning experience for me as I go to be on the other side of the table so to say. I spend time working with founders at accelerators and advising them about getting from zero to 1. This was a good opportunity for me to “eat my own dog food”!

This story was originally published on HackerNoon at: https://hackernoon.com/the-anatomy-of-a-write-operation.
When file.write() returns, your data isn't on disk. Trace the 6-layer journey of a write operation from Python buffers to Linux kernel and SSD silicon.
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This story was written by: @natarajmocherla. Learn more about this writer by checking @natarajmocherla's about page, and for more stories, please visit hackernoon.com.

When you write to a file in Python, the "success" return value is an illusion. Your data hasn't actually hit the disk; it has merely entered a complex relay race of buffers. This article traces the lifecycle of a write operation across six layers: Python's internal memory, the Linux Virtual File System, the Page Cache, the Ext4 filesystem, the Block Layer, and finally the SSD controller. We explore why the OS prioritizes speed over safety and why you must use os.fsync() if you need a guarantee that your data has survived power loss.

This story was originally published on HackerNoon at: https://hackernoon.com/how-to-get-a-first-name-domain-for-less-than-$101.
Missed out on FirstName.com? .cv domain could be your last real chance to own your name online. Secure it now.
Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #domains, #.cv-domain, #domain-name, #domain-name-registration, #developer-tools, #professional-identity-online, #first-name-domain, #good-company, and more.

This story was written by: @cv-domain. Learn more about this writer by checking @cv-domain's about page, and for more stories, please visit hackernoon.com.

Most First Name domains are already taken and expensive. .cv TLD is one of the last chances to own your name online at an affordable price, before it gets bought out and turns into another auction market.

This story was originally published on HackerNoon at: https://hackernoon.com/the-diy-5g-router-hack-that-turns-a-raspberry-pi-into-a-pocket-sized-powerhouse.
This step-by-step guide shows you how to add mobile connectivity and create a pocket-sized network powerhouse.
Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #rpi, #rasbperry-pi, #5g, #networking, #router, #mobile, #calyx, #hackernoon-top-story, and more.

This story was written by: @janluk. Learn more about this writer by checking @janluk's about page, and for more stories, please visit hackernoon.com.

Build a powerful 5G router using a Raspberry Pi 5 and OpenWRT. This step-by-step guide shows you how to add mobile connectivity and create a pocket-sized network powerhouse.

This story was originally published on HackerNoon at: https://hackernoon.com/top-web-scraping-tools-you-should-use-in-2025.
A 2025 guide to the best web scraping tools, from no-code platforms to AI scrapers, helping teams extract reliable, scalable, and compliant web data.
Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #best-web-scraping-tools, #web-scraping-2025, #ai-powered-scrapers, #no-code-scraping, #oxylabs-web-scraper, #scrapingbee-api, #playwright-scraping, #good-company, and more.

This story was written by: @oxylabs. Learn more about this writer by checking @oxylabs's about page, and for more stories, please visit hackernoon.com.

This 2025 guide explores the top web scraping tools—no-code scrapers, developer frameworks, AI-powered extractors, and enterprise APIs. It breaks down key features, challenges, compliance concerns, and how to choose the right solution based on skill level, project scale, website complexity, and budget.

This story was originally published on HackerNoon at: https://hackernoon.com/indrives-approach-to-measuring-engineering-performance.
How inDrive measures and improves engineering performance using a system of metrics, dashboards, feedback loops, and data-driven management practices
Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #developer-productivity, #engineering-performance, #indrive-engineering, #engineering-performance-system, #dora-metrics, #software-team-performance, #software-delivery-analytics, #good-company, and more.

This story was written by: @indrivetech. Learn more about this writer by checking @indrivetech's about page, and for more stories, please visit hackernoon.com.

InDrive’s performance and productivity is one of the hottest debates in the software industry. The company has been experiencing rapid business and engineering growth - in both the number of engineers and teams. This scale creates the need for processes and tools that ensure predictable outcomes.

This story was originally published on HackerNoon at: https://hackernoon.com/angular-21-rolls-out-modern-testing-headless-a11y-components-and-ai-tools.
Angular v21 brings signal-driven forms, new accessibility tools, AI-powered CLI features, zoneless apps, and modern testing with Vitest.
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This story was written by: @mukhtarpeace. Learn more about this writer by checking @mukhtarpeace's about page, and for more stories, please visit hackernoon.com.

Angular v21 isn’t about one headline feature — it’s a broad shift toward reactive patterns, accessible UI, AI-aware tooling, modern testing, and simpler, zoneless change detection. Together, these updates mark Angular’s move toward a more predictable, modern, and developer-aligned framework.