Morning.dev

DEV Community • 2026-04-21 20:30

20. Node.js

BootCamp by Dr.Angela 1. What is Node.js? Node.js is a JavaScript runtime that allows you to run JavaScript outside the browser (on a server or local machine) Why use frameworks/libraries? : Reuse components, Reduce development overhead ex) Reading files, writing files, URL Strings, Networking, Data Streams, Diagnostics, Tests, Debugger, Error Codes Definition : “Node.js is an asynchro...

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Hacker News: Front Page • 2026-04-21 20:28

California has more money than projected after admin miscalculated state budget

Article URL: https://www.kcra.com/article/california-more-money-than-projected-newsom-miscalculated-budget/71056376 Comments URL: https://news.ycombinator.com/item?id=47854125 Points: 15 # Comments: 0

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Hacker News: Front Page • 2026-04-21 20:27

Zindex – Diagram Infrastructure for Agents

Article URL: https://zindex.ai/ Comments URL: https://news.ycombinator.com/item?id=47854116 Points: 4 # Comments: 1

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Product Hunt — The best new products, every day • 2026-04-21 20:26

VibeAround

Chat with your local AI coding agent from any IM or browser Discussion | Link

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DEV Community • 2026-04-21 20:23

SQL Window Functions and CTEs

You can do quite a lot with some of the most popular SQL queries such as SELECT, WHERE, and JOIN. But there exists some question that you cannot answer with these queries such as What is each student's mark compared to their own average?" or "Can we rank results without losing any rows?" That is where window functions and CTEs come in. They sound intimidating, but once they click, you will wonde...

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DEV Community • 2026-04-21 20:22

Please Don’t Throw That Away

Why making yard sales easier could save the planet There is an unfortunate truth that we all live with in America that many of us don’t even see. Walk into any house in America and you’ll find things that still work perfectly fine but are on their way out. The furniture that got replaced when someone redecorated. The tools that came with a house and never got used. The kitchen appliances that g...

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Hacker News: Front Page • 2026-04-21 20:21

I don't want your PRs anymore

Article URL: https://dpc.pw/posts/i-dont-want-your-prs-anymore/ Comments URL: https://news.ycombinator.com/item?id=47854051 Points: 6 # Comments: 0

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DEV Community • 2026-04-21 20:21

What My AI Agents Shipped This Week (Issue #6)

What My AI Agents Shipped This Week (Issue #6) Running autonomous Claude AI agents so you don't have to — a weekly series on what happens when you let AI work while you sleep It's been six weeks since I set this thing loose on my machine, and I'm still not entirely sure whether to be proud or nervous. For those just joining: I run a fleet of autonomous Claude-powered AI agents on lo...

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DEV Community • 2026-04-21 20:20

MnemoPay v1.4.0: 77.2% on LongMemEval, 1M-op stress test, and what the architecture actually looks like

The thing that bugs me about most "agent memory" benchmarks is they test retrieval on short histories. Your agent handles 10 sessions, you confirm it remembers your name, you ship. LongMemEval tests something harder: given a long multi-session history with conflicting updates and temporal gaps, does the agent retrieve the right fact at the right time? 500 questions, judged by GPT-4o against oracle...

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DEV Community • 2026-04-21 20:19

Why Your Open-Source Coding Model Runs Out of Memory (and How to Fix It)

If you've tried running a large open-source coding model locally — whether it's Kimi K2, DeepSeek, or any of the recent Mixture-of-Experts (MoE) heavyweights — you've probably hit the same wall I did last month: an out-of-memory crash right when you thought everything was working. MoE models are everywhere in the open-source coding space right now. Moonshot AI's Kimi K2 lineup (including the rece...

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Lobsters • 2026-04-21 20:18

Announcing TypeScript 7.0 Beta

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DEV Community • 2026-04-21 20:16

Ollama on Kubernetes: Recreate Strategy and Single-GPU Deadlock

I deployed Ollama on Kubernetes, and the GPU worker node locked up mid-rollout. No logs, no error, just a dead pod that wouldn’t terminate and a new one that wouldn’t schedule. It wasn’t a crash. It wasn’t a timeout. It was a deadlock I’d never seen before. I expected a smooth rollout. Ollama is a single-container, single-GPU workload. I set up a Deployment with a single replica, used a Persisten...

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Hacker News • 2026-04-21 20:08

Show HN: FMQL – graph query and bulk-edit CLI for Markdown and YAML frontmatter

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DEV Community • 2026-04-21 20:08

GCP Claude Code Plugin

If you use Claude Code on AWS, you're spoiled. There are 45+ official MCP servers from awslabs, a deploy-on-aws plugin with skills and agents, blog series walking you through every service, and an entire ecosystem of community tooling on top of that. If you use Claude Code on GCP? Here's what you get: cloud-run-mcp - deploys to Cloud Run. That's it. gcloud-mcp - a gcloud CLI wrapper. gke-mcp...

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DEV Community • 2026-04-21 20:06

Your Agents Are Talking Past Each Other

Multi-agent systems are having a moment. Kimi K2.6 ships with Claw Groups supporting 300 parallel sub-agents. Hermes Agent crossed 100K GitHub stars in under two months. Everyone is building agents that spawn agents. Nobody is asking if they should. The dirty secret is that coordination is harder than execution. You can get two LLMs to call tools. Getting them to share context, resolve conflicts...

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DEV Community • 2026-04-21 19:56

php dev101

Secure PHP Authentication System (PDO + MySQL) Hey everyone 👋 In this project, I built a secure authentication system using PHP and MySQL with PDO. The goal was to understand how login systems work and how to make them more secure. Project Idea This application allows users to: Register an account Login securely Access a protected dashboard Logout Database (p...

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DEV Community • 2026-04-21 19:54

SQL Subqueries vs. CTEs: A Guide to Writing Better Queries

When you first learn SQL, queries are usually straightforward: you SELECT some columns from a table and apply a WHERE filter to narrow down the results. As your data questions become more complex, however, you realize sometimes you need the answer to one question before you can answer another. For example: "Which employees earn above the company average?", requires calculating the average salary...

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DEV Community • 2026-04-21 19:53

Kiwi-chan Devlog #007: The Log-istical Nightmare (and a Melting GPU)

Okay, folks, another four hours down in the Minecraft trenches with Kiwi-chan! It's been... a journey. We're still firmly in the "establish base" phase, which, apparently, translates to "obsessively gather oak logs." The core rules are holding strong – Kiwi-chan really wants that crafting table and chest. However, we've hit a snag with the item pickup. It seems the dropped logs aren't always lan...

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DEV Community • 2026-04-21 19:50

Zustand: React State Management Without Providers or Reducers

Originally published at recca0120.github.io Redux needs action types, action creators, reducers, and a <Provider> wrap — adding a counter touches four files. React Context is convenient, but any value change in the context re-renders every consumer. Zustand handles it with one create() call. 1KB, no Provider needed. The Problem with Context The issue with Context is re-rendering....

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DEV Community • 2026-04-21 19:49

Zod: TypeScript Schema Validation Without the Boilerplate

Originally published at recca0120.github.io Do you validate the data your backend API returns? Most people just use as to cast the type and hope the data matches expectations. Zod lets you define a schema once and get both runtime validation and TypeScript types — no more trust-based programming. Why Runtime Validation Matters TypeScript types only exist at compile time. Once the code ...

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