Morning.dev

DEV Community • 2026-04-18 15:00

I built a 1-person web agency in 7 days using Claude Code + Netlify. Full stack + pricing breakdown.

TL;DR I'm a performance marketer (8 years) who got tired of watching agencies charge clients $20k-50k for websites that take 3 months and don't convert. So I built my own 1-person agency, the vibe company, with a radically different stack: Stack: Single-file HTML + Tailwind, Netlify hosting, Python SEO page generator, Playwright screenshots Price: $260 - $1,300 USD (1/3 of agency pr...

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3m read

[Tutorial] Building an Unshielded Token dApp with UI

DEV Community • 2026-04-18 14:58

[Tutorial] Building an Unshielded Token dApp with UI

Building an unshielded token DApp with a working frontend. 📁 Full Source Code: midnight-apps/unshielded-token We will keep it simple and use React VITE Ts as it is compatible with most of midnight packages, so the first thing we do is setup a basic wallet connection and for this we will also make sure to use the latest version of Dapp Connector V4 Be sure to have a package.json that's compatibl...

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11m read

The other side of the table: a technical interviewer's perspective

DEV Community • 2026-04-18 14:58

The other side of the table: a technical interviewer's perspective

The main purpose of dev.to is not to please LinkedIn’s corporate theater, but to speak directly to other developers like myself. So let’s be honest: in the IT market, most people spend a good portion of their careers building a personal brand in pursuit of a better life. “Better” is subjective. It usually means higher income, a supportive work environment, room to learn and grow, and an interest...

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3m read

DEV Community • 2026-04-18 14:49

Shipping Global Keyboard Shortcuts on macOS Sandbox: The Part Apple Doesn't Document

TL;DR I shipped a macOS menu bar app (QUICOPY) to the Mac App Store. Its core feature is global keyboard shortcuts that output text in any app. The obvious implementation — CGEvent.post() — is silently blocked by App Sandbox. Apple does not document this clearly. Here's what actually works, and why. If you're building anything that simulates keyboard input on macOS and targeting the Ap...

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7m read

DEV Community • 2026-04-18 14:47

セマンティックバージョニングがよくわかるクイズ12問

Introduction I organized a seminar on semantic versioning for beginners using package management tools. The quiz format we used was well-received, so I am sharing the materials from that session. By answering these questions, you will gain a good understanding of how semantic versioning works! Give it a try! What is Semantic Versioning? This is one way to assign version nu...

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8m read

DEV Community • 2026-04-18 14:47

What can you do with basic CSS(CSS basics part 3/60)

In the second and first part you learned about what CSS is and How to use it but not USING it I recommend following along by opening whatevery you have codepen, codesandbox, VS code, Studio code and experimenting with CSS as we go along. There are many things you can do with CSS we can change the color of a text using color: ColorName; hex coded colors and rebeccapurple allowed. We can also chan...

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1m read

DEV Community • 2026-04-18 14:44

How I cut my Next.js image payload by 60% without changing a line of code

I was doing a routine Lighthouse audit on a Next.js app I'm building and realized my LCP (Largest Contentful Paint) was terrible. The culprit? Unoptimized hero images and Open Graph meta images. I didn't want to set up a heavy Sharp pipeline in my CI/CD just for a few static assets. I needed a quick way to optimize them before committing. Here is the exact 3-step workflow I used to fix it: ...

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1m read

DEV Community • 2026-04-18 14:40

I Built a Font Inspector Chrome Extension That Actually Identifies Japanese Fonts

There is a specific frustration that every frontend developer knows: you open a Japanese website, see a beautiful typeface, open DevTools, and font-family gives you "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Meiryo", sans-serif. Which of those is actually rendering? The browser picks the first available font from the stack. DevTools tells you the declared stack, not the resolved font. For Lati...

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4m read

DEV Community • 2026-04-18 14:38

Introducing Plumbed, self-healing integrations in days, not months

If you’ve ever shipped a “finished” integration only to spend the next months babysitting it, you already know the real cost isn’t the build, it’s the uptime. At Plumbed.io, we’re building an AI-native integration platform that takes ownership of the full lifecycle: from prompt-driven setup to monitoring, self-healing, and continuous updates when APIs change. What Plumbed does Build...

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1m read

Built a simple DDNS service because existing ones felt too complicated. https://rjuip.com

DEV Community • 2026-04-18 14:37

Built a simple DDNS service because existing ones felt too complicated. https://rjuip.com

Hey everyone, I’ve been working a lot with ESP8266 projects and a small home server setup, and kept running into the same annoying issue — my public IP changing and breaking remote access. I tried a few DDNS services, but honestly: some were overcomplicated some had messy configs some didn’t play nicely with simple IoT setups So I ended up building a lightweight DDNS service for my own use,...

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1m read

Lobsters • 2026-04-18 14:35

SQLite prefixes its temp files with `etilqs_`

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1m read

DEV Community • 2026-04-18 14:33

Your AI Isn’t Dumb. It Just Doesn’t Think Twice.

This is a submission for the OpenClaw Challenge. What I Built Most AI systems don’t fail because they lack intelligence. They fail because they answer too quickly. We’ve optimized for speed—but not for thinking. So I built a minimal AI agent that does one simple thing differently: 👉 It doesn’t trust its first answer. Instead, it runs a small loop: generate critique improve ...

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2m read

Newest questions tagged javascript - Stack Overflow • 2026-04-18 14:32

Prisma throws "No database host or connection string was set" despite environment variables being configured

I'm getting the following error on my Next.js app (deployed on Vercel) when navigating to the "Add Your Store" page, which triggers a database operation via Prisma: ``` No database host or connection string was set, and key parameters have default values (host: localhost, user: undefined, db: undefined, password: null). Is an environment variable missing? Alternatively, if you intended t...

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1m read

DEV Community • 2026-04-18 14:31

Build an Authorization Server with Bun, Hono, and OpenID Connect

Modern applications increasingly rely on OpenID Connect (OIDC) for secure, standards-based authentication. But most tutorials point you at hosted identity providers. What if you need to run your own authorization server maybe for a microservices platform, an internal tool, or simply to understand how the flow works end to end? In this article we'll build a fully working OIDC Authorization Code F...

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12m read

Newest questions tagged javascript - Stack Overflow • 2026-04-18 14:30

I need to add a unique user functionality in my chatroom app, how can I do it?

I have written a logic for userValidation here it is: the chatroom does not have any database. using socket.io import { users } from './users'; function validateUser(user) { for (let i = 0; i < users.length; i++) { if (users[i].username === user.username) { alert("Username already exists"); } else { // join room socket.join(...

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1m read

DEV Community • 2026-04-18 14:29

How to Build a Certificate Generator with HTML and CSS

Every course platform, bootcamp, and online community eventually needs the same thing: certificates. And most developers reach for one of these solutions: A design tool (Canva, Figma) — manual, doesn't scale PDF generation libraries (PDFKit, pdfmake) — painful layout control Canvas API — powerful but verbose and hard to style A third-party certificate SaaS — expensive and locked-in There's a s...

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7m read

DEV Community • 2026-04-18 14:26

AtCoder Beginer Contest 454 参加記録と解答例（A~D問題）

本記事は、AtCoder Beginner Contest 454 (ABC454) に参加した際の、A〜D問題の復習と解答の備忘録です。コンテスト中に考えた解法の方針や、提出したPythonのコードについて整理しています。 A - Closed interval 配点 : 100 点問題文整数 L,R が与えられます。 L 以上 R 以下の整数がいくつあるか求めてください。制約 1≤L≤R≤100 入力される値は全て整数自分の解答の方針そのまま $R-L+1$ で計算します。提出したコード L, R = map(int, input().split()) print(R - L + 1) B - Mapping ...

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5m read

DEV Community • 2026-04-18 14:26

I shipped a NuGet package, then rewrote it completely. Here's why.

If you work in fintech and process card transactions, you've seen MCC codes. Merchant Category Code- a four-digit number that tells you what kind of business charged the card. 5411 is a grocery store. 5812 is a restaurant. 7995 is a casino. Every product that touches transactions eventually needs to turn these codes into something a human can understand. Cashback rules, spend controls, analytics ...

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4m read

DEV Community • 2026-04-18 14:25

Deploying Under the Moonlight

There's something magical about a calm night walk that clears your mind. I was out, just enjoying the evening breeze and the peaceful streets. Suddenly, I realized a small but frustrating bug was bothering my personal project. Users were being forced to re-login every time my server restarted. Instead of rushing home to my computer to fix it, I pulled out my phone. I didn't want to break the peac...

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2m read

DEV Community • 2026-04-18 14:23

ActionNode: A Real-Time Sustainability Command Center for Earth Day 2026

This is a submission for Weekend Challenge: Earth Day Edition What I Built ActionNode — a real-time sustainability dashboard that turns complex environmental data into personal, collective action. The app is built around Earth Day 2026's dual themes: "Planet vs. Plastics" and "Our Power, Our Planet". Rather than a static tips site, I wanted to build something that functions as a ge...

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6m read