Lobsters • 2026-04-11 15:40

Replacing Lenovo’s WWAN Unlock Blob with a 100-Line Bash Script

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DEV Community • 2026-04-11 15:37

I shipped my first side project outside of work - a drop-in comment widget for static sites

Hey dev.to 👋 I've been working on a side project called Talky and I'm at the validation stage. This is the first thing I've shipped outside of my regular job, and I'd really appreciate feedback from this community - especially on the technical decisions. What it does: Drop a single script tag into any static site and you get a fully functional comment section. No backend needed on your end. <...

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DEV Community • 2026-04-11 15:36

Building a desktop application to manage AI coding agents across git worktrees

Building a desktop application to manage AI coding agents across git worktrees At our company we manage dozens of projects across multiple languages. We started using tools like Claude Code and Gemini CLI on multiple pull request branches simultaneously. The workflow degraded fast. I often had 20 to 30 terminal tabs open. Each tab ran a different agent. Add the frontend and backend bro...

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Okta Single Sign-On (SSO) Setup: A Step-by-Step Guide
DEV Community • 2026-04-11 15:36

Okta Single Sign-On (SSO) Setup: A Step-by-Step Guide

Configuring SSO authentication in Okta After logging into the Okta panel, you will be redirected to the dashboard. From here, we will configure Okta to enable Single Sign-On (SSO) authentication for our application. Assigning users to group We need to add groups and add the required users to the appropriate group. !Note: Only users who are members of this group will be ab...

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Azure Single Sign-On (SSO) Setup: A Step-by-Step Guide
DEV Community • 2026-04-11 15:36

Azure Single Sign-On (SSO) Setup: A Step-by-Step Guide

To enable Single Sign-On (SSO) for your application, we first need to register it in Azure Active Navigate to Microsoft Entra ID: Click to Add button and select App registration: Fill in the Name field (you can choose any meaningful name). Set the Redirect URI, which look like this: https://your-user-pool-domain/oauth2/idpresponse where your-user-pool-domain is your Cognito User Poo...

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I built a free LeetCode visualizer. Here's what I learned making 207 problems animate line by line.
DEV Community • 2026-04-11 15:25

I built a free LeetCode visualizer. Here's what I learned making 207 problems animate line by line.

I spent months grinding LeetCode. I could read solutions. I could even explain them out loud. But the moment I closed the tab, it all evaporated. The problem wasn't intelligence. It was that I was trying to understand movement through static text. So I built codedive.in a free tool that lets you step through LeetCode problems line by line, watching everything animate in real time. Here's what I le...

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DEV Community • 2026-04-11 15:24

An alternative to PG-Admin with LLM

Stop Writing SQL Just to Check Your Own Database There's a moment every backend developer knows. You're deep in the zone, building a feature, and suddenly you need to quickly check something in the database. How many users signed up today? Are there any orders stuck in a pending state? What's the latest entry in that table? So you stop. You open pgAdmin, wait for it to load, navigate ...

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DEV Community • 2026-04-11 15:22

How to Transcode Video with an API (Skip the FFmpeg Server Setup)

Originally published at ffmpeg-micro.com You need video transcoding in your app. Maybe users upload MP4s that need converting to WebM. Maybe you are building a course platform and need consistent 720p output. Maybe you just got handed a "video processing" ticket and realized FFmpeg has 400 command-line flags. The typical path: spin up a server, install FFmpeg, write a job queue, handle failures,...

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DEV Community • 2026-04-11 15:22

How to Scale Video Processing to 1000+ Videos Per Day (Without Breaking the Bank)

Originally published at ffmpeg-micro.com Processing 10 videos a day? Easy. Processing 1,000 videos a day? That's where most video pipelines fall apart. The infrastructure that worked at small scale becomes your bottleneck. Costs balloon. Queues back up. Jobs fail. You're firefighting instead of shipping features. How to scale video processing from dozens to thousands of videos per day without t...

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DEV Community • 2026-04-11 15:20

# 😂 Catch Me If You Can – A Completely Useless Website

⚠️ Warning: This website may test your patience more than your internet speed. Ever tried clicking a button… and it refuses to be clicked? Well, I built exactly that 😄 🤡 The Idea I wanted to create something that solves absolutely nothing… but still makes people laugh. So I built a website where: 👉 A button literally runs away from you 👉 And only after enough effort… it gives up ...

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DEV Community • 2026-04-11 15:16

Embodied AI Systems: Extending Intelligence Through Learning in the Environment

Embodied AI is transforming artificial intelligence from static prediction models into systems that learn through real-world interaction. Instead of just processing data, these systems perceive, act, and adapt in dynamic environments. Cross-posted from Zeromath. Original article: https://zeromathai.com/en/embodied-ai-learning-system-en/ Why Embodied AI Matters Most AI systems today...

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DEV Community • 2026-04-11 15:15

Chrome Extension: Aftermark

Every bookmark you've ever saved was a moment where past-you thought "I should come back to this." You never did. I built a Chrome extension to fix that. I have 8,383 bookmarks. I know this because I counted them — or rather, Aftermark counted them for me. Most bookmark managers want to help you organize links. That's not the problem. The problem is that bookmarks aren't links. They're compresse...

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DEV Community • 2026-04-11 15:14

Why I have ditched the QuerySelector

Why? The 'document.querySelector()' has many downfalls. There are many articles on the web to read more about it! As I work the Javascript OOP way, I don't need it. What I do instead and what I want to share here is this: Connecting to the DOM directly. What I do is making use of already available object keys in the dom tree: document.activeElement (in callbacks ...

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4m read
DEV Community • 2026-04-11 15:13

What the Scrapy Maintainer Thinks About AI-Generated Scrapers

I sat down with Adrian Chaves, one of the lead Scrapy maintainers, who also works at Zyte, to ask him the questions I've been chewing on since Zyte launched Web Scraping Copilot: what happens when an LLM writes your spider(the web scraping code)? What gets easier? What doesn't change? His answers surprised me. A few highlights: On vibe coding: Adrian has thoughts about developers treating scrap...

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DEV Community • 2026-04-11 15:12

@NotBlank vs @Column(nullable = false) vs @NotNull — Which one should you use?

When I started working with Spring Boot, I thought all three did the same thing. They don’t. Understanding the difference between them helped me write cleaner and safer backend code. 1. @NotNull Prevents null Allow empty string "" and spaces " ". Provided by Hibernate Validator, used for application level validation. Works both for string and integer. 2. @NotBlank Prev...

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DEV Community • 2026-04-11 15:11

AtCoder Beginner Contest 453 参加記録と解答例 (A〜C問題)

本記事は、AtCoder Beginner Contest 453 (ABC453) に参加した際の、A〜C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 - Trimo 実行時間制限: 2 sec / メモリ制限: 1024 MiB 配点: 100 点 問題文 長さ N の文字列 S が与えられます。 S のうち先頭に連続する o をすべて取り除いた文字列を出力してください。 なお、 S 中のすべての文字が o である場合は空文字列を出力してください。 制約 N は 1 ≤ N ≤ 50 を満たす整数 S は英小文字からなる長さ N の文字列 自分の解答の方針 先頭からo出ない文字が初めに出てくる場所を調べ、それ以降の文字列を出力する...

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DEV Community • 2026-04-11 15:11

AtCoder Beginner Contest 452 参加記録と解答例 (A〜D問題)

本記事は、AtCoder Beginner Contest 452 (ABC452) 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、そして後から振り返って気づいた計算量の課題などについて整理しています。 A - Gothec 実行時間制限: 2 sec / メモリ制限: 1024 MiB 配点: 100 点 問題文 以下の 5 つの日を五節句と呼びます。 1 月 7 日 3 月 3 日 5 月 5 日 7 月 7 日 9 月 9 日 M 月 D 日が五節句に含まれるならば Yes を、含まれないならば No を出力してください。 制約 M, D は整数 M 月 D 日はグレゴリオ暦における閏年（うるうどし）の日付として正しい。 自分の解答...

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DEV Community • 2026-04-11 15:11

Why Cursor Keeps Generating Wildcard CORS -- And How to Fix It

TL;DR AI editors almost always default to cors() with no config -- which sets Access-Control-Allow-Origin: * Wildcard CORS on authenticated APIs exposes your users to cross-site request attacks Fix: replace the wildcard with an explicit origin allowlist controlled by an env var I was reviewing a side project a dev built entirely in Cursor. The Express backend looked clean -- structu...

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CSS中央揃えの迷路から抜け出す！「要素の中身」と「要素自体」の明確な違い
DEV Community • 2026-04-11 15:10

CSS中央揃えの迷路から抜け出す！「要素の中身」と「要素自体」の明確な違い

CSSで中央揃えを実装しようとして、paddingで無理やり余白を埋めたり、小さい要素がどうしても動かず混乱した経験はありませんか？ 中央揃えの仕組みを理解する鍵は、「要素の中身（テキストなど）を動かす」のか、「要素（箱）そのものを動かす」のかを明確に区別することです。 要素の中身（インライン）を中央に寄せる: text-align: center; を使う 要素自体（ブロック）を中央に配置する: 幅（width）を指定し、margin: auto; を使う この2つのルールの違いと、なぜpaddingで寄せるのが非推奨なのかを、インライン要素とブロック要素の違いを交えて解説します。 要素の中身（テキストなど）を中央に寄せる：text-align テキストや画像など、箱の中に入っている「コンテンツ（インライン要素）」を中央に揃えたい場合は、親のブロック...

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DEV Community • 2026-04-11 15:06

#DEV.to Challenge Submission: Protocol 418

This is a submission for the DEV April Fools Challenge What I Built I built Protocol 418: The Sentient Steamer. While the rest of Silicon Valley is racing toward AGI that makes humans more productive, I built ASI (Artificial Super-Inconvenience). Protocol 418 is a "Refusal AI" system specifically engineered to solve zero real-world problems. It is a high-fidelity interaction layer fo...

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