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DEV Community · Technology

A Fake CFO Stole $25.6M. The Real Victim Is Your Evidence Process.

The $25.6 million deepfake heist highlights a critical failure in how we handle biometric trust. For developers building computer vision (CV) and identity verification systems, this isn't just a sensational headline; it is a fundamental shift in the requirements for facial analysis software. The Ho...

CaraComp 3 days ago

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DEV Community · Technology

npm audit --json Is Unreadable. I Wrote a Formatter With Zero Dependencies.

npm audit --json Is Unreadable. I Wrote a Formatter With Zero Dependencies. npm audit has two output modes. The human one is a wall of text that scrolls off your terminal. The JSON one is nested four levels deep and nobody opens it. This post is about the tool I wrote to bridge the two,...

SEN LLC 3 days ago

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DEV Community · Technology

TOTP From First Principles: Building an RFC 4226 / 6238 CLI in Rust

A small Rust CLI that generates TOTP / HOTP codes, parses otpauth:// URIs, and verifies user-supplied codes against a clock-drift window. No dependency on totp-rs or oath-toolkit. Everything — base32, HMAC wiring, dynamic truncation, URI format — is written out so you can read it. Source: https:...

SEN LLC 3 days ago

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DEV Community · Technology

OpenBlob is evolving: better architecture, modern UI, and real-time transcripts

Over the past days, OpenBlob changed a lot. Not just visually — but fundamentally. This is a proper progress update on where things are heading 👇 🧠 Quick recap OpenBlob is a local-first desktop AI companion that: lives on your desktop understands your context can see your sc...

southy404 3 days ago

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DEV Community · Technology

Cómo crear un agente de IA desde cero. Open source, local y gratis.

De un modelo que solo responde a uno que busca, razona y recuerda — con código que puedes leer, forkear y contribuir. Todos hemos usado ChatGPT, Claude, Google Gemini. Les preguntas algo, te responden. Les pides que resuman un texto, lo resumen. Les dices que escriban un correo, lo escriben. Per...

Hazel Saenz 3 days ago

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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 3 days ago

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DEV Community · Technology

Stop Scrolling Perfetto Timelines: Query Your Traces with SQL and Let AI Find the Bugs

Originally published on Medium Stop Scrolling Perfetto Timelines — Query Your Traces with SQL and Let AI Find the Bugs Perfetto traces are secretly a SQL database. You can query them, pipe the results to Claude, and get a ranked list of exactly what's slowing your app down — in minutes,...

Umang Sharma 3 days ago

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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 3 days ago

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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 3 days ago

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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 3 days ago

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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 3 days ago

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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 3 days ago

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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 3 days ago

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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 3 days ago

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DEV Community · Technology

Claude Mythos and the Mobile App Security Wake-Up Call: Why Mobile Developers Can't Afford to Wait

Anthropic's new Claude Mythos model has already uncovered thousands of critical vulnerabilities — some of them hidden in production software for 27 years. The cybersecurity conversation has focused on operating systems, browsers, and cloud infrastructure, but mobile apps sit squarely in the blast ra...

Aaron LaBeau 3 days ago

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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 3 days ago

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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 3 days ago

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DEV Community · Technology

How are Cloudflare-based websites attacked using a distributed denial-of-service (DDoS) attack?

Hello friends, many of us know that the global company Cloudflare offers protection services against DDoS attacks and many other types of attacks, aiming to provide website protection or security in other words. However, despite this protection, we still notice websites falling victim to such attack...

Bpass25 3 days ago

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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 3 days ago

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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 3 days ago

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DEV Community · Technology

Are ClickHouse JOINs Slow? A 2026 PR-by-PR Analysis

TL;DR The narrative that "ClickHouse can't do JOINs" is outdated by four years and 50+ merged PRs. From 2022 to 2026, ClickHouse's join subsystem was rebuilt from the ground up, and the evidence is in the commit history. We analyzed 50+ GitHub pull requests, official ClickHouse changelo...

Manveer Chawla 3 days ago

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DEV Community · Technology

Have you started yet, Bobby?!

This blog has been a long time coming. I know the irony in that phrasing, but it's true. For those of you who don't know me, I'm Bobby Rivera. I've been a web developer since 2018, and, like other devs, I have a long list of side projects I've been wanting to work on for a while. I've even gotten a...

Bobby Rivera 3 days ago

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DEV Community · Technology

My Notes: Makemore - Character Level Language Model

Introduction Character level language model that predicts the next character given previous characters. Example: For 'isabella': i likely comes first s after i a after is b after isa, and so on Representation: <START>isabella<END> 1. Loading the Dataset...

omkar 3 days ago

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DEV Community · Technology

Reel Quick - Added Docker Support

Date: 2026-04-15 Project: Reel Quick (FastAPI + Next.js + ARQ + Mongo + Redis + optional GPU workers) Context We containerized the stack and tried to run it in production mode with Docker Compose. Initial startup failed for both frontend build and backend runtime. Issues Found...

Farhan Munir 3 days ago

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