DEV Community • 2026-04-22 01:34

I built a natural language cron expression generator – looking for feedback

Update: The tool is now live and free to use → heycron.com As a backend developer, every time I write a scheduled job I go through this: Figure out the schedule (e.g. "every Monday at 9am") Google "cron expression syntax" Open crontab.guru to verify Copy the expression, then look up Kubernetes CronJob YAML format Look up GitHub Actions cron syntax separately Repeat for Jenkins, Airflow... Thi...

0 0
1m read
DEV Community • 2026-04-22 01:28

Anthropic's Most Dangerous Model Just Got Accessed by People Who Weren't Supposed to Have It

Anthropic built a model so dangerous they refused to release it publicly. Then a Discord group got in anyway. The Model They Wouldn't Ship Claude Mythos Preview is Anthropic's most capable model to date for coding and agentic tasks. Anthropic But it was never meant to reach the public. During testing, Mythos improved to the point where it mostly saturated existing cybersecurity benchma...

0 0
6m read
Hacker News: Front Page • 2026-04-22 01:25

Global growth in solar "the largest ever observed for any source"

Article URL: https://arstechnica.com/science/2026/04/global-growth-in-solar-the-largest-ever-observed-for-any-source/ Comments URL: https://news.ycombinator.com/item?id=47857509 Points: 5 # Comments: 1

0 0
1m read
CodePen • 2026-04-22 01:23

423: 2.0 Templates

Stephen and Chris hop on the ol’ podcast to talk about all the ways that Templates are way better in 2.0 land. You’ve always been able to make your own templates, but now you can select one even after you’ve arrived in the editor. There is a new place (the create page) which features bookmarked […]

0 0
1m read
App Links e Universal Links: Deep Links em Produção (Parte 5)
DEV Community • 2026-04-22 01:21

App Links e Universal Links: Deep Links em Produção (Parte 5)

Custom schemes funcionam bem para desenvolvimento, mas para produção você precisa de HTTPS. É aqui que entram App Links no Android e Universal Links no iOS — e onde a maioria dos problemas reais aparece. Este é o quinto conteúdo de uma série completa sobre Deep Links no Flutter. Se você ainda não viu os posts anteriores: Post 1 | Post 2 | Post 3 | Post 4. O problema com custom sche...

0 0
7m read
Hacker News: Front Page • 2026-04-22 01:21

San Diego rents declined more than 19 of 20 top US markets after surge in supply

Article URL: https://www.kpbs.org/news/economy/2026/03/27/san-diego-rents-declined-more-than-19-of-nations-top-20-markets-following-surge-in-supply Comments URL: https://news.ycombinator.com/item?id=47857477 Points: 12 # Comments: 5

0 0
1m read
Hacker News: Front Page • 2026-04-22 01:19

I'm Sick of AI Everything

A while back, I stopped using Facebook because I just couldn't take it anymore. Just totally sick of it. I'm honestly getting there with AI. At this point, I would prefer to have anything AI related just be blocked at the browser level. Comments URL: https://news.ycombinator.com/item?id=47857461 Points: 16 # Comments: 6

0 0
1m read
DEV Community • 2026-04-22 01:19

I lost a few thousand to an impersonation scam. So I built the tool I wished existed.

Last year I got hit by an impersonation scam. Someone I thought I was talking to wasn't who they said they were, and a few thousand dollars in crypto moved to a wallet I didn't control before I realized what had happened. I did what everyone does next: I opened a block explorer, stared at a string of transactions I didn't understand, and started Googling. Here's what I found. Option 1: Pay a profe...

0 0
3m read
Product Hunt — The best new products, every day • 2026-04-22 01:16

kimiflare

kimi k2.6 cli code editor hosted on cloudflare workers AI Discussion | Link

0 0
1m read
Stop Hitting Rate Limits: The Ultimate Antigravity & OpenCode Workflow for 10x Developers
DEV Community • 2026-04-22 01:16

Stop Hitting Rate Limits: The Ultimate Antigravity & OpenCode Workflow for 10x Developers

We've all been there. You're completely in the zone, building out an impressive new feature with Antigravity, and then—bam—you hit a rate limit. Suddenly, your flow is dead, and you're staring at a timer telling you to come back tomorrow. Or worse, you ask the AI to tweak one tiny component, and it decides to regenerate the entire codebase, chewing through your tokens and breaking something else i...

0 0
7m read
DEV Community • 2026-04-22 01:15

Terraform 1.14 — The Complete Guide to List Resources (.tfquery.hcl), Actions Block, and `terraform query`: IaC's First Paradigm Shift in 5 Years

On November 19, 2025, HashiCorp shipped Terraform v1.14.0, and on April 20, 2026 they released the v1.14.9 patch that fixes a Stacks plugin installation bug. This minor release is not just a feature bump — it's the first crack in a five-year-old IaC consensus that "declarative + one-way provisioning is enough." Two new primitives do the cracking. First, List Resources (a new *.tfquery.hcl file typ...

0 0
11m read
DEV Community • 2026-04-22 01:12

An open-source Proof of Concept for sub-microsecond Quantum Error Correction (QEC) pre-processing using Linux eBPF/XDP.

Excited to release KISDE, an open-source Proof of Concept for sub-microsecond Quantum Error Correction (QEC) pre-processing using Linux eBPF/XDP. In our HIL benchmarks, the engine achieved ~250ns execution latency, bypassing the OS kernel to triage quantum syndromes at the NIC level. This work proposes a software-defined architecture to break the classical bottleneck in FTQC. We are inviting phy...

0 0
1m read
DEV Community • 2026-04-22 01:09

Your Health Data is Yours: Build a Fully Local AI Health Assistant with Llama 3 and MLX 🍏💻

Privacy isn't just a feature anymore; it’s a human right. As we integrate AI deeper into our lives, the thought of sending heart rate variability, sleep cycles, and activity levels to a cloud server feels... invasive. But what if you could have the reasoning power of a world-class LLM living entirely on your MacBook? In this tutorial, we are building a Privacy-First Health Predictor. We’ll extrac...

0 0
4m read
DEV Community • 2026-04-22 01:07

你的 Cursor 还在满天改 Prompt？99%的人不知道.project-rules文件才是王炸

昨晚我盯着 Cursor 的 AI 助手生成了一堆「default export」组件，差点把键盘砸了。 我花了 3 分钟写了一个 .cursorrules 文件。第二天，同样的项目，AI 生成代码的正确率从 60% 飙升到 90%——不用改一行 Prompt。 这不是什么高级技巧。但凡认真研究过 awesome-cursorrules 这个 GitHub 项目（3.9 万 Star）的人都知道：这玩意儿被严重低估了。 为什么你写的 .cursorrules 没效果？ 你大概是这样写的： # .cursorrules 使用 TypeScript 用 React 组件要有类型定义 然后抱怨 AI 完全不听。 问题在于：你写的是描述，不是指令。 AI 读「要有类型定义」和读「interface ButtonProps { label: strin...

0 0
2m read
DEV Community • 2026-04-22 01:05

I Got Tired of Class-Heavy UI Code — So I Kept Going (Juice Part 4)

In Part 1, I talked about the frustration. In Part 2, I showed the direction. In Part 3, I explained the shift toward a system. Now in Part 4, I want to talk about the part that matters most: rules. Because a UI system is not just made useful by how expressive it is. It is made useful by how well it avoids turning into chaos. A System Cannot Be “Anything You Want” This is the ...

0 0
5m read
(EDA Part-5) Multivariate Analysis — Wrapping Up EDA and What Comes Next
DEV Community • 2026-04-22 01:01

(EDA Part-5) Multivariate Analysis — Wrapping Up EDA and What Comes Next

Over the past four parts, we zoomed in on single features (univariate analysis), then looked at pairs (bivariate). Now it’s time for the real fun: multivariate analysis. This is where we weave three or more features together and look for patterns we simply couldn’t see before. The analogy — the blind men and the elephant 🐘 You have probably heard this story. Six blind men each touch a ...

0 0
10m read
DEV Community • 2026-04-22 01:00

Beyond CLAUDE.md: 5 Layers Your AI Agent Harness Is Missing

Most developers stop at CLAUDE.md. That's layer 1. A production Claude Code harness needs 5 layers: memory, tools, permissions, hooks, and observability. Here's the full setup guide. Claude Code harness has 5 layers: Memory — CLAUDE.md, MEMORY.md, .claude/commands/ Tools — MCP servers (sweet spot: 2–3) Permissions — settings.json allow/deny lists Hooks — PreToolUse/PostToolUse verification ...

0 0
6m read
DEV Community • 2026-04-22 00:43

Building Burn's MCP Server: 3 Patterns That Actually Work

This post was originally published on burn451.cloud. Syndicated here. Building Burn's MCP Server: 3 Patterns That Actually Work MCP has been open-source for over a year now. Cursor shipped Bugbot MCP support earlier this month. Anthropic published a 2026 roadmap that explicitly moves spec evolution out of fixed release cadences and into working groups. And my own burn-mcp-server just c...

0 0
11m read
I Built a Video AI That Sees Like a Human - Not Like a Computer
DEV Community • 2026-04-22 00:41

I Built a Video AI That Sees Like a Human - Not Like a Computer

Most video AI works like this: Look at frame 1 → detect objects → done. Look at frame 2 → detect objects → done. Look at frame 3 → detect objects → done. Each frame is independent. The system has no memory. It doesn't know what happened a second ago. That's like watching a movie with your eyes closed between every frame. You see snapshots. You miss the story. I built something different. ...

0 0
1m read
Authentication in MERN Apps: JWT, bcrypt, Redis, and OAuth2
DEV Community • 2026-04-22 00:38

Authentication in MERN Apps: JWT, bcrypt, Redis, and OAuth2

Authentication in MERN Apps: JWT, bcrypt, Redis, and OAuth2 Most web app breaches trace back to one failure: weak authentication. In 2023, the MOVEit Transfer breach exposed 60 million records, partly because session tokens were predictable and revocation was nonexistent. This guide walks you through building auth that holds up in production. 1. Authentication vs. Authoriza...

0 0
12m read
Previous Next