I built a browser-only SQL practice tool because installing DBeaver is a productivity tax
DEV Community • 2026-04-23 09:41

I built a browser-only SQL practice tool because installing DBeaver is a productivity tax

Recently, I was tutoring data analysts through Preply when I noticed something weird. Every single student — regardless of whether they were prepping for an Amazon interview, a Snowflake analyst role, or just trying to level up at work — asked me the same two questions in their first session: "Where should I practice SQL?" "Do I need to install a database?" These were not beginners. Many of t...

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Hacker News: Front Page • 2026-04-23 09:41

Do you want the US to "win" AI?

Article URL: https://geohot.github.io//blog/jekyll/update/2026/04/23/us-win-ai.html Comments URL: https://news.ycombinator.com/item?id=47873796 Points: 11 # Comments: 8

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react-atom-trigger v2: A Scroll Trigger Recipe
DEV Community • 2026-04-23 09:34

react-atom-trigger v2: A Scroll Trigger Recipe

Some react-waypoint instinct, a bit of IntersectionObserver magic, a lot of geometry and just enough scheduler spice to keep it sane. I did not want to write just another "how to use my library" article. Not because usage is not important. It is important. But the docs already exist, the examples exist, Storybook exists and I think nobody needs one more article where I just say "install packa...

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DEV Community • 2026-04-23 09:30

🚀 Weekly Progress: Building My MERN + Microservices Pizza App (Learning in Public)

This week was all about connecting the system, enforcing code quality, and pushing myself to build like a real engineer — not a tutorial follower. 🔧 What I accomplished this week • Integrated GitHub Actions for automated CI → Every push now triggers linting, tests, and build checks • Connected SonarQube for code quality & static analysis → Enforcing clean code, maintainability, and bug detec...

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DEV Community • 2026-04-23 09:30

The Page Order Math Behind Saddle-Stitch Booklets Is Weirder Than You Think. So I Automated It. [Devlog #8]

All tests run on an 8-year-old MacBook Air. Print pages 1, 2, 3, 4 in order, fold the paper — and the result is wrong. Booklet printing requires a completely different page ordering. For an 8-page booklet, you print [8, 1] on the front of sheet 1, [2, 7] on the back. This is called imposition, and it's a paid feature in InDesign and Acrobat. I built it in Rust. The math For a sad...

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DEV Community • 2026-04-23 09:29

Moon

Check out this Pen I made!

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DEV Community • 2026-04-23 09:28

I Built a Multi-Step AI Agent in One Day with Google ADK — Here's What Nobody Tells You

I'm a final-year computer science student. I spend most of my days training deep learning models on image datasets, debugging tensor shape errors at 2am, and convincing myself that 67% accuracy is "a solid baseline." I do not, normally, build AI agents. But when Google Cloud NEXT '26 dropped last week and I saw the announcements around ADK 2.0 and the new Gemini Enterprise Agent Platform, I got...

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Product Hunt — The best new products, every day • 2026-04-23 09:24

GitBar

Every pull request, one menubar. GitHub, GitLab & Azure Discussion | Link

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DEV Community • 2026-04-23 09:24

The Credential Vending Revolution: How Polaris Eliminates Long-Lived Keys

Author: Prithvi S Date: April 23, 2026 Topic: Apache Polaris, Credential Vending, Security Architecture Word Count: ~2,100 words The Problem Nobody Wants to Talk About You're a data engineer at a mid-sized company. Your team needs access to production data for analytics, ML pipelines, and ad-hoc queries. So you do what everyone does: you create long-lived AWS credentials (access key +...

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DEV Community • 2026-04-23 09:22

The Hidden Side of Being a Developer: Code, Pressure, and Health

When people think about developers, they usually imagine someone sitting in front of a laptop, typing fast, building cool apps, and earning well. That’s true… but it’s not the full story. Behind the screen, there’s a lifestyle that most people don’t talk about. How Developers Actually Work As a developer (or even as a student learning it), you don’t just “work”—you think. A lot. Sometimes you si...

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Hacker News • 2026-04-23 09:21

Show HN: We built an OCR server that can process 270 dense images/s on a 5090

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DEV Community • 2026-04-23 09:20

How to Build Accessible Custom Dropdowns (Comboboxes) That Actually Work

Originally published on the AccessGuard blog. After our post on accessible modals resonated with so many of you, we wanted to tackle another notoriously tricky pattern: the custom dropdown, or combobox. Native select elements are accessible out of the box, but the moment you need custom styling, searchable options, multi-select, or grouped items, you end up reimplementing a lot of browser behavio...

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Hacker News: Front Page • 2026-04-23 09:20

Writing a C Compiler, in Zig

Article URL: https://ar-ms.me/thoughts/c-compiler-1-zig/ Comments URL: https://news.ycombinator.com/item?id=47873694 Points: 5 # Comments: 0

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Launching S3 Files, making S3 buckets accessible as file systems
DEV Community • 2026-04-23 09:17

Launching S3 Files, making S3 buckets accessible as file systems

🚀 Amazon S3 Just Got More Interesting: AWS Launches S3 Files AWS just introduced S3 Files, and this could quietly become one of the most useful storage launches for modern cloud workloads. 👀 For years, Amazon S3 has been one of the most important building blocks in AWS. It’s: 💸 cheap 📈 massively scalable 🛡️ highly durable 📦 perfect for storing: logs backups datasets media stati...

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DEV Community • 2026-04-23 09:14

How We Cut API Response Time from 2.3s to 180ms Using Redis + Smart Caching

p95 latency dropped from 2.3 seconds to 180 milliseconds. Same hardware, same database, same traffic. The only thing that changed was how we cached — and I don't mean slapping @lru_cache on a function. I'm writing this because every Redis caching tutorial I read before this project showed me the same 15-line example: redis.get(key) or fetch_from_db(). That code works in a notebook. It will absolu...

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Hacker News: Front Page • 2026-04-23 09:12

FIU Student Arrested After Joking About Netanyahu on WhatsApp

Article URL: https://www.youtube.com/watch?v=o1Zsb1IijYY Comments URL: https://news.ycombinator.com/item?id=47873646 Points: 13 # Comments: 0

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Private AI Inference on Midnight: Keep Your Data Secret, Prove Your Output is Real
DEV Community • 2026-04-23 09:08

Private AI Inference on Midnight: Keep Your Data Secret, Prove Your Output is Real

Introduction There is a quiet problem at the heart of modern AI: the data powering personalised outputs often belongs to someone who never consented to share it. Artists, writers, musicians their work gets swept into training pipelines, their style replicated, and they receive nothing in return. But what if it didn't have to work that way? This tutorial shows you how to use Midnight a...

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DEV Community • 2026-04-23 09:05

From Marketplace to Independent Stack: Migrating a B2B Industrial Site to Nuxt 3 & Spring Boot

1. The Backstory I recently took on a project to move a traditional industrial enterprise away from Alibaba International to a fully independent digital platform. The mission was clear: reduce third-party dependency, improve brand autonomy, and own the search traffic. 2. The Tech Stack To ensure the platform could handle thousands of SKUs while maintaining top-tier SEO, I built the system with: ...

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China-Linked GopherWhisper Infects 12 Mongolian Government Systems with Go Backdoors
The Hacker News • 2026-04-23 09:04

China-Linked GopherWhisper Infects 12 Mongolian Government Systems with Go Backdoors

Mongolian governmental institutions have emerged as the target of a previously undocumented China-aligned advanced persistent threat (APT) group tracked as GopherWhisper. "The group wields a wide array of tools mostly written in Go, using injectors and loaders to deploy and execute various backdoors in its arsenal," Slovakian cybersecurity company ESET said in a report shared with The Hacker

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Making illegal state unrepresentable
DEV Community • 2026-04-23 09:02

Making illegal state unrepresentable

A couple of years ago, I wrote that The Builder pattern is a finite state machine!. A state machine consists of states and transitions between them. As a developer, I want to make illegal states unrepresentable, i.e., users of my API can't create non-existent transitions. My hypothesis is that only a static typing system allows this at compile-time. Dynamic typing systems rely on runtime validatio...

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