DEV Community • 2026-07-30 02:09

React useUpdateEffect Hook: Skip the First Render (2026)

React useUpdateEffect Hook: Skip the First Render (2026) useEffect has no opinion about why it's running. Mount, update, doesn't matter — the callback fires either way. Which is how a "settings saved ✓" toast greets users the moment the page loads, an autosave POSTs a form nobody has touched yet, and an analytics event reports a "change" that was actually just the component appearing. W...

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Product Hunt — The best new products, every day • 2026-07-30 02:08

Premation

An open-source AI alternative to After Effects Discussion | Link

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DEV Community • 2026-07-30 02:06

Stop letting your AI agents hallucinate test failures

I've seen enough CI pipelines die in an infinite loop of 'fix, retry, fail' to last a lifetime. You know the pattern. An agent-driven QA process runs a suite. A Vitest assertion fails. The LLM looks at the error log, reads the code, and makes an executive decision: 'The logic is flawed; let me refactor this function.' It pushes a change. The pipeline runs again. It fails again with the exact same...

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Hacker News • 2026-07-30 02:04

Show HN: Legionlinuxtui – Control Lenovo legion laptops in the terminal

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DEV Community • 2026-07-30 02:01

oh-my-agent: shared MCP daemons and offline BGM rendering

We just merged a complete overhaul of how oh-my-agent manages MCP processes. Previously, every agent session spawned its own copy of every stdio MCP server. We measured 65 processes and 800MB of RAM across six sessions. Now, serena daemons are shared per-project by default. What's new BGM rendering: The video agent now supports --music <preset> to render background music beds o...

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DEV Community • 2026-07-30 02:00

Turns out my "random group splitter" doesn't roll any dice — here's what it does instead

A while back I wanted to build the classic "paste a list of names, get N even groups" tool — the kind of thing every teacher and event organizer has needed at some point. I assumed it would basically be a Fisher-Yates shuffle plus Array.slice in a loop, maybe an hour of work. Then I actually thought about what people ask for when they say "randomly group my class." They don't mean random. They me...

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DEV Community • 2026-07-30 01:59

How MTProto Obfuscation and FakeTLS Defeat Deep Packet Inspection

Deep Packet Inspection (DPI) blocks Telegram by recognising the unique byte signatures of its transport protocol. Standard MTProto uses a fixed 0xEE prefix on the first packet and specific handshake patterns – easy for state-level filters like Russia's TSPU or Iran's DPI to match and drop. MTProto proxies exist to bypass these filters, and they do it with three layers: obfuscation, random padding,...

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DEV Community • 2026-07-30 01:50

Solon AOT & Native: Three Phases to a GraalVM Native Executable

When you hear "Java native compilation with GraalVM," you probably think of configuration hell — endless JSON metadata files, trial-and-error reflection registrations, and build scripts that take more effort than the application itself. Solon takes a different path. Its AOT pipeline compiles in three phases, where each phase feeds into the next. The framework's "restraint" philosophy — minimal dy...

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DEV Community • 2026-07-30 01:50

Solon AOT & Native: From Zero to Native Executable in Three Phases

When you hear "Java native compilation with GraalVM," you probably think of configuration hell — endless JSON metadata files, trial-and-error reflection registrations, and build scripts that take more effort than the application itself. Solon takes a different path. Its AOT pipeline compiles in three phases, where each phase feeds into the next. The framework's "restraint" philosophy — minimal dy...

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DEV Community • 2026-07-30 01:49

My First SIEM Deployment: Logs, Lessons, and a Little Bit of Chaos

Blog 3. My Unified Blog Draft (No 3) My First SIEM Deployment: Logs, Lessons, and a Little Bit of Chaos If you’ve ever wondered what it feels like to stand up your very first SIEM, let me tell you: it’s a mix of excitement, confusion, triumph, and the occasional “why is this port closed again?” moment. This week, I finally dove into deploying a SIEM inside my Cloudshare lab — and I’m here to tell ...

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Token Vault Privileged Worker: Secure Access for Agents That Never Sleep
Auth0 Blog • 2026-07-30 01:46

Token Vault Privileged Worker: Secure Access for Agents That Never Sleep

Stop storing raw refresh tokens. Discover how Auth0 Token Vault Privileged Worker enables secure background AI agent access without user sessions.

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DEV Community • 2026-07-30 01:44

How I Built a Free Audible Credit Value Optimizer — and Why Most Subscribers Waste Their Credits

I've been an Audible subscriber for years. Every month I get my one credit, and every month I face the same question: Is this book worth my credit? The answer is almost never obvious. A 5-hour novella costs the same as a 45-hour epic fantasy. A $12 self-help book costs the same credit as a $38 blockbuster. And yet, most people — myself included — just pick a book and click "Buy with 1 Credit" wi...

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DEV Community • 2026-07-30 01:42

How Vision-Language Models Learned to Reason About Space (10 Papers, One Thread)

This is a cross-post. The original (with diagrams, code, and cheat sheets for every chapter) lives on my blog: 👉 The Evolution of Spatial VLMs Vision-language models can describe a warehouse photo in fluent prose — and then fail to answer "how many meters is the forklift from the shelf?" They see but don't perceive. Over 2024–2026 a line of research closed that gap step by step, and the arc is ...

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Hacker News • 2026-07-30 01:42

Show HN: GlobeHoppr – find a route between cities using limited-distance jumps

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DEV Community • 2026-07-30 01:41

My theme build fails if any color misses WCAG contrast — here's the pipeline

Korean temples and palaces have been painted with the same mineral pigment system — dancheong (단청) — for about 1,500 years. Deep indigo woodwork, cinnabar red, ochre gold. Mineral pigments read vivid but never neon, which turns out to be exactly what you want to stare at for eight hours a day. I turned that palette into a theme family for VS Code and 12 other apps. This post is about the part I a...

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Lobsters • 2026-07-30 01:40

What side projects have you enjoyed the most?

In the spirit of https://blog.jsbarretto.com/post/software-is-joy, what side projects have you enjoyed working on the most?

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DEV Community • 2026-07-30 01:35

Seven government recall feeds, and what it takes to make them agree

Every developed market publishes its product recalls. The EU has Safety Gate, France runs RappelConso on top of it, the US splits the job across the CPSC, NHTSA and three separate FDA enforcement databases. All of it is free, all of it is public, and most of it has an API. So checking whether a product has been recalled should be easy. It is not, and the reasons are more interesting than "the sc...

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Hacker News: Front Page • 2026-07-30 01:35

A pharmacy chain in Vermont implemented AI for efficiency

Article URL: https://vtdigger.org/2026/07/29/a-pharmacy-chain-in-vermont-implemented-ai-for-efficiency-its-led-to-delays-incorrect-information-and-privacy-concerns/ Comments URL: https://news.ycombinator.com/item?id=49105190 Points: 4 # Comments: 0

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DEV Community • 2026-07-30 01:35

Why I Believe Vibe Coding Is Becoming a Real Engineering skills

For a long time, I thought vibe coding was simply about asking AI to generate code. The more I build, the more I realize that's only a small part of it. The real skill isn't writing prompts it's making sound engineering decisions. AI can generate a login page, an API, or even an entire application in minutes. What it can't reliably do is make the decisions that determine whether a product is se...

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Hacker News • 2026-07-30 01:30

Show HN: RunNburn – Run a 295B Moe from a 98GB GGUF on a 64GB RAM Desktop

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