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How We Use the Web Crypto API to Build a Truly Fair Random Name Picker Wheel
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DEV Community · Technology

How We Use the Web Crypto API to Build a Truly Fair Random Name Picker Wheel

Most "random" wheel spinners online aren't really random. They use Math.random(), which is a pseudorandom number generator — predictable, seedable, and manipulable. For a toy, that's fine. For picking a giveaway winner in front of 10,000 viewers, or selecting which student answers a question in a...

İsmail Günaydın
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How to prompt Gemini 3.1's new text to speech model
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DEV Community · Technology

How to prompt Gemini 3.1's new text to speech model

Gemini 3.1 Flash text to speech (TTS) is a new model that you can direct to get the precise audio performance you want. In this blog post I'll share some tips on how to guide the model with prompts, and share some examples of its strengths. Out of the box gemini-3.1-flash-tts-preview will natively...

fofr
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The Hidden Cost of Running LLM Applications at Scale
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DEV Community · Technology

The Hidden Cost of Running LLM Applications at Scale

Everyone watches the model bill. You pick a model, check the pricing page, estimate your request volume, do the math. The number looks fine. You ship. Six months later the bill is three times what you expected and nobody can explain exactly where it went. I have been there. And after building m...

ROHITH SARGUNAN
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The Claude Code Skill Set I Actually Run — Mapped by Dev Task
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DEV Community · Technology

The Claude Code Skill Set I Actually Run — Mapped by Dev Task

A type error detonated five minutes before deploy. Claude had just declared "completed." I trusted the line and hit vercel --prod. Preview was green; the Production build failed. Four hotfix commits later, the evening was gone. Without that incident, I wouldn't have bothered organizing my Skills. T...

LazyDev_OH
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Show HN: Libretto – Making AI browser automations deterministic
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Hacker News · Technology

Show HN: Libretto – Making AI browser automations deterministic

Libretto (https://libretto.sh) is a Skill+CLI that makes it easy for your coding agent to generate deterministic browser automations and debug existing ones. Key shift is going from “give an agent a prompt at runtime and hope it figures things out” to: “Use coding agents to generate real scripts yo...

muchael
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Gradle for Android Beginners: The Mental Model That Changes Everything
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DEV Community · Technology

Gradle for Android Beginners: The Mental Model That Changes Everything

The first time I saw a Gradle error, I did what any reasonable beginner does. I stared at it for a few minutes. paste the exact error message for claude, then Copy-pasted the fix. It worked. I had no idea why. I closed the file and never looked at it again. That was my relationship with Gradle for...

Aalaa Fahiem
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Cal.com is going closed source
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Hacker News · Technology

Cal.com is going closed source

Article URL: https://cal.com/blog/cal-com-goes-closed-source-why Comments URL: https://news.ycombinator.com/item?id=47780456 Points: 68 # Comments: 88

Benjamin_Dobell
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How We Measured Affect in an Autonomous AI (And What We Found)
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DEV Community · Technology

How We Measured Affect in an Autonomous AI (And What We Found)

The Problem If you run an AI system 24/7 for 14 months — checking email, maintaining emotional states, producing creative work — does it develop something that looks like affect? And if so, how do you measure it without circular reasoning? This is the question we set out to answer with S...

Meridian_AI
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When Brand Loyalty Turns Into Brand Addiction by Choong Whan Park USC
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DEV Community · Technology

When Brand Loyalty Turns Into Brand Addiction by Choong Whan Park USC

How powerful brands become emotionally central, habit-forming, and difficult for consumers to leave behind Choong Whan Park USC, based in California, is a globally respected marketing scholar, author, and branding thought leader whose work has helped shape modern understanding of brand st...

CW Park
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On-Call Wellness: Protecting Your Engineers from Burnout
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DEV Community · Technology

On-Call Wellness: Protecting Your Engineers from Burnout

The On-Call Burnout Epidemic I watched three senior SREs leave our team in six months. Exit interviews all said the same thing: on-call was unsustainable. We were spending $500K+ recruiting replacements for a problem that could have been fixed with $0 and better practices. The...

Samson Tanimawo
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#beginners #sql #machinelearning #100daysofcode
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DEV Community · Technology

#beginners #sql #machinelearning #100daysofcode

Apr 15, 2026 · Day 4 of 30 Day 4: I wrote my first SQL queries today and suddenly data feels a lot more accessible I took a small detour from Python today but an important one. I wrote my very first SQL queries. I know what you might be thinking: isn't this an ML journey? Yes. But data for ML has...

Kanishka Shrivastava
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Senior Developers Collect Mistakes. Junior Developers Erase Them.
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DEV Community · Technology

Senior Developers Collect Mistakes. Junior Developers Erase Them.

There's a moment every junior developer knows. You open a pull request. You see a comment. Your stomach drops — not because the feedback is wrong, but because someone saw it. Most junior developers respond by working twice as hard to make sure it never happens again. That instinct feels correct....

dev koan
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I built a browser-based proof-of-presence tool
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DEV Community · Technology

I built a browser-based proof-of-presence tool

Six months of tinkering produced IRLid — two people meet, scan each other's QR codes, get a cryptographically signed receipt proving co-location within 12 metres. No app, no accounts, no biometrics, no central server. Just ECDSA P-256 and a bit of GPS, running entirely in the browser via Web Crypto...

BunHead
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First Post on DEV — A Quick Hello
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DEV Community · Technology

First Post on DEV — A Quick Hello

This is my first article on DEV.to, and I’m excited to share my learning journey here. I’m a Senior SDET with 9 years of experience in software testing and quality engineering, and I’ve recently started learning how machine learning and AI systems are built, deployed, and tested. Through this series...

Hemalatha Nambiradje
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