DEV Community • 2026-04-18 12:40

I Built a B2B Lead Generation Tool for Freelancers - Here's What I Learned

The Problem Freelancers and small agencies spend an exhausting amount of time on client acquisition - finding leads, writing cold emails, tracking responses, and creating proposals. Most tools out there are built for enterprise sales teams, not solo operators. I decided to build something different: a B2B lead generation tool specifically designed for freelancers and small agencies. ...

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DEV Community • 2026-04-18 12:40

A Physics-Guided Neural Network Framework for Elastic Plates: Comparison ofGoverning Equations-Based and Energy-Based Approaches

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DEV Community • 2026-04-18 12:37

Unhandled CSS Ruining Life

There is a moment in the life of almost every mature frontend when CSS stops feeling like a tool and starts feeling like archaeology. You open one screen and the primary button has one height. On another screen, it is almost the same height, but not quite. Inputs look consistent until you open a modal. Selects behave until a page level override wins. Somewhere in the codebase there is a global sty...

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Lobsters • 2026-04-18 12:30

How (and why) we rewrote our production C++ frontend infrastructure in Rust

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Hacker News: Front Page • 2026-04-18 12:29

Why Japan has such good railways

Article URL: https://worksinprogress.co/issue/why-japan-has-such-good-railways/ Comments URL: https://news.ycombinator.com/item?id=47815395 Points: 12 # Comments: 2

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DEV Community • 2026-04-18 12:29

I Built a Skill Registration Framework for AI Agents in 3000 Lines of TypeScript

I was tired of every AI agent framework having a different way to register tools. So I built one that works for all of them. ## The Problem If you've built AI agents, you know the pain. Every framework — LangChain, AutoGen, CrewAI, OpenClaw — has its own way to define tools and skills. Want to add a weather API? Different syntax everywhere. Want credentials? Good luck figuring out each one's app...

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Hacker News • 2026-04-18 12:28

Show HN: Pvm – A TUI to browse and run commands across multiple Python venvs

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DEV Community • 2026-04-18 12:26

Carbon Footprint: The Micro-Logistics Optimizer

This is a submission for Weekend Challenge: Earth Day Edition What I Built Solving carbon emissions often starts with efficiency. This project reimagines how we move goods or people by finding the most "carbon-efficient" routes rather than just the fastest ones. A routing engine that calculates the CO_2 cost of different transit methods based on real-time data. It doesn't just show a ...

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DEV Community • 2026-04-18 12:23

Cloud sync is a feature you’re paying for with your privacy

Open a new app. Create an account. Verify your email. Choose a plan. Grant permissions. Now you can take notes. This is the default in 2026. And most developers just accept it. I've been building local-first terminal tools for a while now, and the more I do it, the more convinced I am that the industry defaulted to cloud sync not because it's better for users, but because it's better for retenti...

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DEV Community • 2026-04-18 12:20

Mastering Spring Security with Spring Boot 3 and SecurityFilterChain

Mastering Spring Security with Spring Boot 3 and SecurityFilterChain Learn how to implement robust security in your Spring Boot 3 applications using Spring Security and SecurityFilterChain Implementing security in web applications is a critical aspect of development that is often overlooked until it's too late. Insecure applications can lead to data breaches, compromised user informa...

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DEV Community • 2026-04-18 12:19

Value Objects, Entities, and Aggregates in Go — Without a Framework

Domain-Driven Design in Go doesn't look like DDD in Java. There are no annotations, no repository interfaces from a framework, no @Entity markers. The building blocks — Value Objects, Entities, and Aggregates — emerge from Go's type system and encapsulation rules. Here's how each pattern appeared in a security CLI through refactoring, with the actual before/after code. Value Objects: Eq...

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DEV Community • 2026-04-18 12:19

Quark's Outlines: Python Frame Objects

Quark’s Outlines: Python Frame Objects Overview, Historical Timeline, Problems & Solutions An Overview of Python Frame Objects What is a Python frame object? When you run a Python function, Python creates a frame object. A frame object holds everything Python needs to track that function. It stores local variables, global names, and the exact point where Pytho...

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DEV Community • 2026-04-18 12:16

Next.js 16.2 Turbopack: 400% Faster next dev — What It Actually Feels Like

Next.js 16.2 shipped last month with one headline claim: next dev\ is now 400% faster. The official release notes promise 10x HMR on large projects. Turbopack replaces Webpack as the default bundler. I've been running it on five production-grade template repos for two weeks. Here's what that actually feels like in practice. The Boring Answer: Yes, It's Fast Here are the numbers I saw ...

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Lobsters • 2026-04-18 12:15

Towards Trust in Emacs

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Material Design Principles Are Correct. Implementing Them Will Break You.
DEV Community • 2026-04-18 12:11

Material Design Principles Are Correct. Implementing Them Will Break You.

Long read. Written from nine years of implementation experience, not the spec. Preface I believe Material Design is correct. Not partially correct -- correct in its core philosophy about how interfaces should behave under load, under interaction, under uncertainty. I follow new versions closely. I implement what I can, whenever I can. I use a Pixel phone specifically because the s...

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DEV Community • 2026-04-18 12:10

I built a terminal screensaver in Go — constellations, rain, braille waves, and full shell integration

Every OS has a screensaver. The terminal had nothing. So I built drift — a terminal screensaver written in Go that activates automatically when your shell goes idle and disappears the moment you press any key. https://github.com/phlx0/drift How it works drift is built on tcell and renders directly to the terminal at a configurable frame rate (default 30fps). Each scene is its own ...

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Hacker News: Front Page • 2026-04-18 12:08

Flock Condemns False Child Predator Allegations, Yet Calls Critics Terrorists

Article URL: https://ipvm.com/reports/flock-allegations-critics Comments URL: https://news.ycombinator.com/item?id=47815269 Points: 8 # Comments: 2

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DEV Community • 2026-04-18 12:05

Hono.js on Cloudflare Workers: Typed APIs That Actually Run at the Edge

I've been running Express-style Node servers for years. They work. They're familiar. And for most projects I've touched, they're also overkill — a whole VM babysitting a few hundred requests per day. Last quarter we moved our AI agent webhook layer to Hono on Cloudflare Workers. Here's what that actually looks like in production, where it breaks down, and what I'd do differently. What H...

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DEV Community • 2026-04-18 12:05

How I Found My First CVE as a College Student (And What Most Guides Don't Tell You)

Everyone talks about CVEs like they're some mythical achievement reserved for seasoned professionals with 10 years of experience and a hoodie covered in conference stickers. I'm a BCA student. I found five. This isn't a flex post. It's the guide I wish existed when I started — because most resources out there skip the parts that actually matter. Why I Started Bug Hunting I was deep into TryHackMe...

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Newest questions tagged reactjs - Stack Overflow • 2026-04-18 12:04

Has anyone tried FractoState as a high-performance alternative to Zustand or Jotai?

I'm looking for real-world feedback on **FractoState**, a relatively new React state management library. I've been using it on several large production projects and really like these aspects: - **Surgical updates** thanks to its atomic proxy architecture — only the components that actually need a piece of state re-render, even in very dynamic UIs. - Almost **zero boilerplate**: you define a `Flow`...

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