DEV Community • 2026-08-02 21:06

How Much Should Live Together? Learning to Isolate Services the Hard Way

How moving from VMs to Proxmox LXC containers taught me more about isolation, failover, high availability, and efficiency than any tutorial could. Also Published On trever.cloud Medium LinkedIn Most of us who get into self-hosting start the same way: start with linux, throw a few apps into Docker, get them running and connectable outside the home network, and call it good for mon...

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DEV Community • 2026-08-02 21:06

GitLab 2FA Lockout: How My Local SSH Key Saved the Day

I have two-factor authentication (2FA) enabled on most of my accounts using an authenticator app. Recently, while installing the app on another Android device, I tried to change the backup password, but it didn't work. As a result, I lost access, had to disable 2FA, and re-enable it using a different authenticator app. Setting up 2FA again wasn't a problem because I was still logged in to most of...

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Five Prediction Markets, Five Definitions of Price: The Normalization Problem Nobody Talks About
HackerNoon • 2026-08-02 21:05

Five Prediction Markets, Five Definitions of Price: The Normalization Problem Nobody Talks About

Kalshi, Polymarket, and other prediction markets expose similar-looking prices that can represent different quotes, fees, contracts, and timestamps.

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DEV Community • 2026-08-02 21:04

Architecting a Reliable Background Service for Android Sound Automation

It happened during a medical appointment. I was sitting in the quiet waiting room, my thoughts occupied by the upcoming consultation, when my phone erupted with a loud, aggressive ringtone. The entire room turned to look at me, and I fumbled to silence it, accidentally hitting the volume up button instead of the mute toggle in my panic. I felt that specific, burning embarrassment that comes from b...

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5m read
DEV Community • 2026-08-02 21:02

Why your DMARC reports never arrive (and why Gmail can't be your rua address)

You published a DMARC record months ago. Every checker says it's valid. No reports have ever arrived, and at some point you stopped thinking about it and quietly concluded nobody's forging your domain. You don't know that. You just can't see. Two causes account for almost all of it, and both leave the DMARC record itself looking perfect. 1. Your reporting address never agreed to receiv...

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How can I locate an element in a nested div without selecting the outer div?
Newest questions tagged javascript - Stack Overflow • 2026-08-02 21:00

How can I locate an element in a nested div without selecting the outer div?

<div> <div > <h1>first item </h1> <button>buy now</button> </div> <div > <h1>second item </h1> <button>buy now</button> </div> </div> I want to be able to locate the first button based on the text within the div. I tried the following code, but it seems to match both...

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HackerNoon • 2026-08-02 21:00

Finance in AI-Native Companies Is a Control System, Not a Monthly Report

AI-native businesses need real-time finance, not monthly reports. Learn how predictive FP&A, telemetry, and AI cost governance are reshaping enterprise finance.

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DEV Community • 2026-08-02 20:59

Creating a Knowledge Graph with Drupal Content

Introduction Managing content efficiently becomes more difficult as Drupal websites grow. Traditional content management structures information in discrete entities but often does not expose meaningful relationships between them. A knowledge graph solves this, connecting content like nodes, taxonomy terms, users and media into an intelligent network. This facilitates semantic search, pe...

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3m read
HackerNoon • 2026-08-02 20:57

HRAP Suite Earns a 50.4 Proof of Usefulness Score by Building a Unified Workforce Operating System

Meet HRAP Suite, a workforce operating system serving seven organizations and 85 employees, with a 50.4 Proof of Usefulness score.

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DEV Community • 2026-08-02 20:55

The 4% rule: picking app background colors that survive cheap phone screens

Every design team eventually ships a beautiful off-white, off-blue, or off-anything background… and then opens the app on a $120 phone and watches it turn dirty gray. Same hex, same build. This post explains why, and gives you a small formula to convert any tint you've chosen into one that survives budget panels. Why subtle tints die on cheap screens Four panel-level failure modes, all...

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DEV Community • 2026-08-02 20:55

Your SPF record can be valid, published, and completely ignored

There's a failure mode in SPF that produces no error anywhere you'd think to look. Your record is syntactically valid. dig returns it. Your DNS provider is happy. Your own test mail arrives fine. And yet some of your mail is failing authentication at the receiver, and nothing in your infrastructure will tell you. The cause is usually that you've gone past ten DNS lookups. Ten is a hard...

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5m read
DEV Community • 2026-08-02 20:53

Quantum-Safe Security and the Hidden Payload Crisis in Cloud Architecture

When engineers discuss quantum computing, the conversation usually focuses on future supercomputers cracking traditional encryption passwords in a matter of seconds. As a systems architect who spends my days building distributed platforms, which are networks of independent cloud servers working together as a single application, I see a different, highly practical challenge taking shape. The transi...

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HackerNoon • 2026-08-02 20:51

Applaa AI Earns a 48.27 Proof of Usefulness Score by Building an Offline Agentic AI Learning Platform

Meet Applaa AI, an offline agentic learning platform helping students prepare for GCSEs, A-Levels, SATs, and other major exams.

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Hacker News: Front Page • 2026-08-02 20:50

Bubble Memory

Article URL: https://en.wikipedia.org/wiki/Bubble_memory Comments URL: https://news.ycombinator.com/item?id=49148176 Points: 6 # Comments: 0

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Hacker News • 2026-08-02 20:48

Show HN: Draco – A single-binary, self-hostable Firecrawl alternative in Rust

Comments

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Hacker News: Front Page • 2026-08-02 20:48

AI Mania: From Tulips to Tokens

Article URL: https://seanhelvey.com/tools-and-their-tools/ Comments URL: https://news.ycombinator.com/item?id=49148159 Points: 6 # Comments: 1

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DEV Community • 2026-08-02 20:46

Add Live Bilingual Tech News to Your Portfolio Site in One Line

Every portfolio site has the same problem: it's static. A grid of projects, a bio, a contact form — nothing on the page ever changes, which means nothing on the page proves you can work with live data. Recruiters and reviewers skim past it because there's nothing to skim. The fastest fix isn't building your own API — it's embedding someone else's, and picking one that's actually interesting to lo...

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3m read
Hacker News: Front Page • 2026-08-02 20:44

EU Age Verification Project Mandates Hardware-Bound Attestation

Article URL: https://linuxiac.com/eu-age-verification-project-mandates-hardware-bound-attestation/ Comments URL: https://news.ycombinator.com/item?id=49148128 Points: 14 # Comments: 2

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DEV Community • 2026-08-02 20:43

Nearly half of MCP servers expose tools an agent could plausibly confuse

A reader made a point on my last post that I couldn't answer at the time, so I went and measured it. The point: "tool added" is not automatically a safe change. I'd been filing additions under harmless because every old invocation still validates against its schema. But validation isn't selection. A new overlapping tool can capture calls that used to route somewhere else, and nothing errors — the...

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4m read
HackerNoon • 2026-08-02 20:42

Balancing Frameworks and Fundamentals: A Strategic Approach to Full-Stack Development and ML

Should you master JavaScript before React? Learn why framework-free projects build stronger debugging, architecture, and full-stack skills.

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1m read
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