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DEV Community • 2026-04-22 18:27

How Teams Really Handle SQL Index Performance Tuning

When people talk about SQL index performance tuning, they usually talk about what to do. But tools actually shape how you do it. When working with sql index, teams often compare different approaches and compare sql index performance tuning tools to understand which ones fit their workflow best. For many teams, dbForge Edge is the starting point — an all-in-one environment where index tuning is p...

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DEV Community • 2026-04-22 18:27

Hello World

Hey everyone! 👋 I'm a self-taught vibe coder and this is my first post here. I'm pretty new to the dev.to community. I like building AI-powered tools that speed up the game development process and make it cheaper and less painful along the way. My first project is AutoGameVisionTester — a background tool that smart-captures gameplay screenshots and uses Grok Vision to run QA/analysis ...

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Lobsters • 2026-04-22 18:26

Forge

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I shipped a DevSecOps tool in 2026 with zero LLM calls. On purpose. I think determinism still wins.
DEV Community • 2026-04-22 18:24

I shipped a DevSecOps tool in 2026 with zero LLM calls. On purpose. I think determinism still wins.

Let me get one thing out of the way before the comments section catches fire. I am not a luddite. I use AI all day. This article was outlined in Cursor, the tool I am about to describe was built with heavy help from Claude Code, and my IDE autocomplete is so spicy these days that I sometimes forget I am the one supposed to be writing the code. That is normal in 2026. Pretending otherwise would ...

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DEV Community • 2026-04-22 18:22

Breaking Down Linux File-System

In Linux, everything is a file—not just text documents or executables, but also devices, network sockets, and even running processes. This idea turns the whole operating system into a giant, interconnected file‑system tree that you can “hunt” through like a detective. In this blog I’ll walk you through 10 meaningful discoveries I made while exploring the Linux file system, focusing on what those ...

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DEV Community • 2026-04-22 18:21

Building a Real-Time Gift Nifty Tracker Using Yahoo Finance API (Step-by-Step)

Most trading websites show market data, but very few explain how that data is actually fetched and visualized in real time. Recently, I worked on a small project to track Gift Nifty live and display it in a clean dashboard with charts and sentiment indicators. In this post, I’ll walk through the approach, APIs, and logic behind building a simple real-time tracker. 🧠 What We Are Building The goa...

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DEV Community • 2026-04-22 18:20

PostgreSQL Row Level Security: A Complete Guide

Your application code knows which tenant owns which row. Your ORM always filters by WHERE tenant_id = $1. Your team has reviewed the queries and they look fine. Then someone forgets the WHERE clause. Or a bulk operation skips the filter. Or a new developer writes a raw query without knowing the convention. Suddenly one tenant can read another tenant's data, and you find out from a support ticket ...

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DEV Community • 2026-04-22 18:19

Apache Data Lakehouse Weekly: April 16–22, 2026

Two weeks past the Iceberg Summit, the San Francisco in-person alignments are now translating into formal proposals and code on the dev lists. Iceberg's V4 design work continued consolidating, Polaris kept moving toward its 1.4.0 milestone, Parquet's Geospatial spec picked up a cleanup commit from a new contributor, and Arrow's release engineering and Java modernization discussions stayed active. ...

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DEV Community • 2026-04-22 18:18

Stop building. Start validating.

Most devs: 👉 spend weeks coding 👉 launch to zero users Reality: distribution > code I fixed it with 2 things: • plug-and-play auth • fast validation before building Links: SecureAuthKit ValidateFast Build less. Earn soon

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Newest questions tagged javascript - Stack Overflow • 2026-04-22 18:18

How can I validate and pretty-print JSON in JavaScript?

I have a JSON string and I want to: Validate if it's correct JSON Format (pretty-print) it for better readability What is the best way to do this in JavaScript? Answer: You can validate and pretty-print JSON in JavaScript using built-in methods like JSON.parse() and JSON.stringify().

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DEV Community • 2026-04-22 18:17

I got tired of shady PDF sites, so I built a fully client-side "Bureaucracy Survival Kit"

Whenever I needed to resize a passport photo to an exact KB limit, or add a signature to a form, I ended up on sketch websites that felt like massive privacy nightmares. Uploading my personal IDs to random servers just to format them never sat right with me. I just wanted a clean workspace to handle annoying document formatting locally. So over the past bit, I built Toolzap. It’s a collection of...

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DEV Community • 2026-04-22 18:17

I built a visual TUI for Homebrew with React and Ink

Why I built Brew-TUI If you're a macOS developer, you probably use Homebrew every day. But memorizing all the brew commands gets old — especially when you just want to see what's outdated, upgrade a few packages, or check if a service is running. So I built Brew-TUI: a full visual terminal UI for Homebrew. What it looks like It's a keyboard-driven TUI built with React 18 + ...

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DEV Community • 2026-04-22 18:17

Lifetime subscriptions don't mean what you think they mean

You see a tool you like. It offers a "lifetime deal" for $59. Pay once, use forever. Sounds great — until "forever" turns out to mean 18 months. The uncomfortable truth: in nearly every Terms of Service, "lifetime" refers to the lifetime of the product, not yours. And products die all the time. Here are 11 real examples of what happens when lifetime deals end early. The graveyard of li...

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DEV Community • 2026-04-22 18:15

# Pre-Execution Gates: How to Block Before You Execute (Part 2/3)

This is Part 2 of a three-part series on AI governance architecture. In Part 1, we explored why signed receipts can't solve the negative proof problem—the challenge of proving that unauthorized actions didn't happen. Today, we'll examine the architectural pattern that does solve it: pre-execution gates that evaluate governance policy before any AI execution occurs. Note: This series explores arch...

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Hacker News • 2026-04-22 18:10

Show HN: Trainly – Free 72-hour audit of your AI agent's production traces

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DEV Community • 2026-04-22 18:09

OpenClaw Burned $5,600 of API Credits in One Month. Here's the Spec Habit That Prevents It.

The formula was exact. The assumption was wrong. I was building vectorize-mcp-worker — a semantic search system on Cloudflare Workers that costs $5/month where alternatives run $130-190. The architecture was clean. Workers AI for embeddings, Vectorize for the index, one Worker handling everything at the edge. I'd spec'd the core search flow, written the populate endpoint, deployed it. Everything ...

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I needed to understand a large legacy .NET codebase — so I built a tool for it
DEV Community • 2026-04-22 18:04

I needed to understand a large legacy .NET codebase — so I built a tool for it

I’m a .NET dev, and lately I’ve been slowly open-sourcing some of the small things I built for myself over time. This is one of them. The context I’ve been working on an old .NET 4.6 app recently (~15 years old, 1M+ LOC). At some point I needed a way to understand the architecture better. Not in a “read the code” sense, but like: what depends on what where things are going in th...

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The exact error handling pattern I use in every Express.js + TypeScript REST API
DEV Community • 2026-04-22 18:04

The exact error handling pattern I use in every Express.js + TypeScript REST API

Most Node.js error handling tutorials show you try/catch. That's not enough for production. I learned this the hard way. A silent catch block swallowed a database failure. My API returned 200. The user's data never saved. Nobody knew for 48 hours. After that incident, I built a pattern I now wire into every Express + TypeScript REST API I ship. It has four parts. Every part earns its place. Here'...

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Hacker News: Front Page • 2026-04-22 18:04

OpenAI: Workspace Agents for Business

Article URL: https://openai.com/business/workspace-agents/ Comments URL: https://news.ycombinator.com/item?id=47867085 Points: 10 # Comments: 2

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DEV Community • 2026-04-22 18:03

AI Weekly: Opus 4.7, Kimi K2.6, and a $25B Amazon Deal, April 16–22, 2026

Three stories defined the past week: Anthropic shipped Claude Opus 4.7, Moonshot open-sourced Kimi K2.6 with 300-agent swarms, and Amazon committed another $25 billion to Anthropic alongside a $100 billion AWS spend. Here is what you need to know. AI Coding Tools: Opus 4.7 Ships With a 1M Context Window Anthropic released Claude Opus 4.7 on April 16, a new flagship model focused on age...

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