Morning.dev

DEV Community • 2026-04-23 16:36

Fundamentals of Modern AI: Agents, MCP, Skills, and Orchestration

Every day a new AI appears — new models, new features, budget cuts here, fewer tokens there… and with that, a lot of people start wondering where all this is going. For juniors, they say there are no more job openings. For seniors, they say it won't be long before there aren't any either. Lots of "blah blah blah." These days, AI is the new JavaScript: every day a new library, "the best one," "the ...

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10m read

Clean Code for DevOps: Refactoring my Ansible Lab into Roles

DEV Community • 2026-04-23 16:33

Clean Code for DevOps: Refactoring my Ansible Lab into Roles

As my Ansible project grew, my single master playbook started to get crowded. Today, I decided to 'graduate' my automation by implementing Ansible Roles. I’ve moved from a linear script to a modular directory structure: /roles/web_servers /roles/workstations /roles/db_servers roles/file_servers This refactor allows me to treat my infrastructure like LEGO blocks. Need a new web server? Just c...

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1m read

DEV Community • 2026-04-23 16:32

What cave diving taught me about distributed systems

What cave diving taught me about distributed systems I've been building backend systems for 14 years. I've also spent a decent chunk of the last decade underwater, mostly in caves. At some point I stopped being surprised by how often the two worlds rhyme. The deeper you go into either, the more you notice the same ideas showing up in different costumes. Here are a few that stuck with m...

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4m read

DEV Community • 2026-04-23 16:31

# Trading is Just Software Engineering in Disguise

Introduction When I first started learning trading, I thought it was all about charts, indicators, and predicting the market. I was wrong. Trading is actually one of the most interesting real-world systems problems you can work on as a developer. It’s not about predicting the future. It’s about building a system that survives uncertainty. Think Like a Developer, Not a Gamb...

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3m read

DEV Community • 2026-04-23 16:31

The Code Pattern That Keeps Our Integrations Stable in Production

When you connect real systems - ERPs, APIs, AI workflows - things don’t behave cleanly. Requests retry. Webhooks get sent twice. Sometimes something succeeds, but you don’t get the response. And then you see it: duplicate orders repeated emails workflows triggering twice This is normal in production. The pattern that keeps this under control is idempotency. The rule Every action...

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1m read

DEV Community • 2026-04-23 16:30

Catch JavaScript errors with user-friendly error feedback

JavaScript errors (either vanilla or with Stimulus controllers) often happen silently in the browser, leaving your users confused about what went wrong. “Why did nothing happen?”. “I just did click the button!” “Let’s try again…”. Still nothing… Starts furiously clicking the button now. This poor user experience can be frustrating and can lead to more support tickets that could have been prevente...

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3m read

Hacker News: Front Page • 2026-04-23 16:27

My phone replaced a brass plug

Article URL: https://drobinin.com/posts/my-phone-replaced-a-brass-plug/ Comments URL: https://news.ycombinator.com/item?id=47877715 Points: 6 # Comments: 0

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1m read

DEV Community • 2026-04-23 16:26

I built a bitmap font generator as a non-developer — here's how it happened

I'm not a developer. I'm a Spine animator at a game studio — my job is character animation, not web apps. But a year ago I got so frustrated with a workflow problem that I ended up building a full web tool to solve it. This is the story of how CopyPxl happened. The Problem Our studio's designer loved using AI tools to generate pixel art. The results were genuinely beautiful — retro RP...

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3m read

The Accountant: Optimizing AI Costs with Semantic Routing

DEV Community • 2026-04-23 16:25

The Accountant: Optimizing AI Costs with Semantic Routing

We’ve solved the Reliability problem with The Judge. We have a system that can scientifically prove whether our Forensic Team is accurate. But there’s a new problem that keeps Directors and CFOs up at night: Sustainability. In an enterprise environment, using a massive, high-reasoning model (like Claude 3.5 or GPT-4o) for every single bibliography lookup is a "Cognitive Budget" disaster. It’s lik...

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4m read

DNS Made Simple: What Really Happens Before Your Browser Opens a Website

DEV Community • 2026-04-23 16:25

DNS Made Simple: What Really Happens Before Your Browser Opens a Website

We use domain names every day. We type google.com, facebook.com, or linkedin.com into a browser, press Enter, and the website opens in seconds. It feels simple. Almost boring. But under the hood, something very important happens before your browser can even start talking to that website. That thing is DNS. And here is the part many developers miss early on: if you want to understand TLS/SSL, n...

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10m read

How to Run a Private AI Assistant on Your Phone in 2026 (Offline, No Account, No Filters)

DEV Community • 2026-04-23 16:24

How to Run a Private AI Assistant on Your Phone in 2026 (Offline, No Account, No Filters)

Your phone's processor can run a 7-billion-parameter language model. It can generate images with Stable Diffusion. It can execute Python scripts and run autonomous AI agents — all without touching a server. Most people don't know this because the default AI experience in 2026 is still "sign up, pay monthly, send your data to the cloud." Layla is an AI app that does all of this on your device. No ...

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6m read

Hacker News: Front Page • 2026-04-23 16:21

Incident with Multple GitHub Services

Article URL: https://www.githubstatus.com/incidents/myrbk7jvvs6p Comments URL: https://news.ycombinator.com/item?id=47877644 Points: 17 # Comments: 2

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1m read

DEV Community • 2026-04-23 16:20

I built a token cost tracker for Claude Code - and it changed the way I think about AI development

It started with a number I couldn’t explain A few months ago, I looked at my Anthropic billing dashboard and saw a number that didn’t add up. I knew roughly how much I’d worked with Claude Code. The bill said otherwise. I couldn’t tell which sessions were expensive. I couldn’t tell why. I only had a total figure at the end of the month—and no way to link it to specific work. That bother...

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7m read

Constructable Stylesheets and adoptedStyleSheets: One Parse, Every Shadow Root

Frontend Masters Boost RSS Feed • 2026-04-23 16:20

Constructable Stylesheets and adoptedStyleSheets: One Parse, Every Shadow Root

If you have any shared styles across multiple shadow DOMs (imagine 20 custom button components), a Constructable Stylesheets is just way more efficient.

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1m read

DEV Community • 2026-04-23 16:19

The Case for .Vegas as Your Next Project Domain

Every developer I know has had the same moment. You finally come up with a project name you actually like. You type it into a registrar. It's taken. You add "app" to the end. Also taken. You try "get" in front. Parked since 2013. You settle on a five-word hyphenated compound that no human will ever type correctly, and you ship anyway. I want to make a small argument for doing something different:...

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4m read

DEV Community • 2026-04-23 16:17

How I Passed the AWS Certified DevOps Engineer - Professional Certification🏅

Passing the AWS Certified DevOps Engineer – Professional exam is no joke. It’s one of the toughest AWS certifications—not because it’s purely theoretical, but because it tests how well you actually understand real-world DevOps on AWS. I recently passed it, and in this post, I’ll break down: My study strategy The resources I used My notes - cleaned-up notes you can actually study from My exam ...

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8m read

DEV Community • 2026-04-23 16:17

How an AI Model Fooled Thousands: The Emily Hart 'MAGA' Influencer Deception Explained for Developers

How an AI Model Fooled Thousands: The Emily Hart 'MAGA' Influencer Deception Explained for Developers She had the perfect face. Flawless skin, piercing blue eyes, a photogenic smile that radiated authenticity — and a political opinion for every news cycle. Emily Hart, a self-described conservative 'MAGA' influencer with tens of thousands of followers, looked every bit the part of a real...

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7m read

DEV Community • 2026-04-23 16:16

5x5 Pixel Font for Tiny Screens: The Complete Developer Guide to Micro Typography

5x5 Pixel Font for Tiny Screens: The Complete Developer Guide to Micro Typography You're staring at a 128×64 OLED display, a tiny e-ink badge, or a retro game screen — and suddenly you realize your fancy TrueType font is completely useless. You need every pixel to count. Welcome to the world of the 5×5 pixel font: the unsung hero of embedded development, retro gaming, and wearable tech...

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8m read

Why Microservices Make Performance Worse (If Done Wrong)

DEV Community • 2026-04-23 16:16

Why Microservices Make Performance Worse (If Done Wrong)

How breaking your system into services can increase complexity and slow everything down In the previous part, we discussed how to design systems that survive under pressure. Microservices are often seen as a solution to scaling and reliability. But in practice, many systems become slower and harder to manage after moving to microservices. The problem is not microservices themselves. ...

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2m read

DEV Community • 2026-04-23 16:16

Re: If AI Existed in 2011, Would We Still Have the Modern Web?

Below is a comment I left on @sylwia-lask's post If AI Existed in 2011, Would We Still Have the Modern Web?, which I thought warranted its own post. Disclaimer on this post: I'm a general cynic with very strong decolonial tendencies. As such, I'm very cynical about "ai" in general, and especially how humanity and conversely capitalism will use it. Please keep that in mind as you read the rest of ...

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3m read