DEV Community • 2026-07-27 06:44

Regression Isn’t Regularization: A Simple Guide to Understanding Both

Regression and regularization are both important concepts in machine learning and statistics, but they solve different problems. Regression is primarily used to model relationships and make predictions. Regularization is used to improve a model's ability to generalize by controlling its complexity. Regression This is a statistical and machine learning technique used to predict a c...

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DEV Community • 2026-07-27 06:43

Mi stack de AI coding en 2026: Mejor calidad/precio ahorrativo y competitivo🥳️

No pago $20/mes por Copilot. No tengo un Mac. Uso Linux Mint con un agente open-source, una API que cuesta céntimos y una terminal TUI. Este es mi setup real, lo bueno y lo que no te cuentan. No es postureo. Es pragmatismo. Mira, te voy a ser sincero. Cuando empecé a usar AI para programar probé de todo: Copilot, Cursor, Codeium, Continue... y cada uno tenía algo que no me cerraba. O...

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A PDF toolkit that never uploads your files, now with batch mode
DEV Community • 2026-07-27 06:43

A PDF toolkit that never uploads your files, now with batch mode

Free Online PDF Converter – Word, HTML, Image & More Tools Free online PDF converter with complete privacy protection. Merge, split, compress, sign, and convert PDFs directly in your browser — plus a free age calculator and scientific calculator. No uploa...

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Full-stack Pokémon TCG simulator with pack opening, grading, PvP and card auctions
DEV Community • 2026-07-27 06:42

Full-stack Pokémon TCG simulator with pack opening, grading, PvP and card auctions

An ecosystem whose job is to full-fill our dream of opening and collecting pokemon cards, which we all had in our childhood. Instead of just clicking a button to reveal static images, I wanted to recreate the whole experience of getting , collecting and showing off your pokemon cards , i even added live card auctions and card shows and PSA card grading simulator to give the full-on experience whi...

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DEV Community • 2026-07-27 06:40

Migrating a Rich Text Editor : CKEditor 5 to SynapEditor (with code)

Disclosure: I work on the team behind SynapEditor. 🧩 TL;DR: Moving from CKEditor 5 to SynapEditor is a one-to-one swap in three steps: installation, toolbar config, and content/event APIs. The main reason to consider it is Office document fidelity (Word, PowerPoint, Excel import/export). Full runnable example at the end. Switching rich text editors sounds like a big job, but most of the work i...

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DEV Community • 2026-07-27 06:40

I built a guard that refused to read the user's tab. Then my own cleanup code closed it.

Three days ago my browser automation tool closed one of my own tabs. Not a tab it had opened — a dashboard I had open in another window, with a page I hadn't finished reading. What makes it worth writing up isn't the bug. It's that the guard designed to prevent exactly this had already fired, correctly, ninety seconds earlier. The guard worked Safari MCP lets an AI agent drive your re...

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DEV Community • 2026-07-27 06:33

I Built 47 Free Dev Tools That Run Entirely in Your Browser

Every developer has done it — copy-pasted a JWT, a private key, or a JSON blob with sensitive data into some random website and held their breath. Wondering if it was being logged, tracked, or worse. Every developer has done it — copy-pasted a JWT, a private key, or a JSON blob with sensitive data into some random website and held their breath. Wondering if it was being logged, tracked, or worse....

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DEV Community • 2026-07-27 06:33

I audited 78 API requests on my own gateway. One of them used 1,086 input tokens and returned 2 tokens. Token waste is real.

I built a small API gateway for Chinese AI models (DeepSeek, etc.) and decided to audit my own token usage. Nothing fancy — just 78 test requests. What I found: 76 successful calls → 13,103 tokens total (avg ~172 per call) 2 calls failed → invalid model name (no cost, but indicates misconfiguration) Worst case: 1,086 input tokens → 2 output tokens. Yes, someone pasted a massive document and go...

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DEV Community • 2026-07-27 06:32

How to Create a Dynamic Role & Permission System in Laravel (Without Hardcoding)

When building web applications, basic authentication is rarely enough. Whether you're working on a multi-tenant SaaS, an admin portal, or an enterprise dashboard, you'll inevitably hit a point where you need Role-Based Access Control (RBAC). Many developers start by hardcoding checks into their controllers or views: php if ($user->role === 'admin') { // allow access } While this work...

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Newest questions tagged css - Stack Overflow • 2026-07-27 06:26

Vite + Web Component + CSS @import = bad MIME type?

I'm fairly new to Vite, and I may have missed something explaining this. My project is set up like this: |- website |- index.html |- src |- index.js |- style.css |- components |- shared-styles |- shared.css |- test-component |- index.html |- index.js |- style.css It's all vanilla, and I'm not currently using a vite.config.js file, though...

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Newest questions tagged css - Stack Overflow • 2026-07-27 06:26

Bad MIME type for CSS @import

My project is set up like this: |- website |- index.html |- src |- index.js |- style.css |- components |- shared-styles |- shared.css |- test-component |- index.html |- index.js |- style.css It's all vanilla, and I'm not currently using a vite.config.js file. The issue centers on shared.css, which contains a few classes that will be shar...

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Product Hunt — The best new products, every day • 2026-07-27 06:25

HeyZoku

Orchestrate an army of coding agents with your voice. Discussion | Link

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DEV Community • 2026-07-27 06:23

How we built WaterShortcut

Your water bill doubled. The utility's website shows you a PDF and a phone number. That's the whole support experience for most of North America. WaterShortcut is a small tool that answers one question — why did this bill change? — and ranks what to do about it. Upload the bill or type in four numbers, and you get a plain-English diagnosis: usage really did go up, the rate changed, sewer is being...

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Hacker News • 2026-07-27 06:22

Show HN: Descript wanted $24/mo, I built an open-source alternative in a weekend

Comments

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DEV Community • 2026-07-27 06:21

Python for Beginners (Part 1): From Zero to Writing Your First Programs

Python for Beginners (Part 1): From Zero to Writing Your First Programs Python is one of the most beginner-friendly programming languages in the world. Whether you want to become a data analyst, data scientist, backend developer, automation engineer, or AI engineer, Python is an excellent place to start. In this first part of the series, you'll learn the fundamentals you need before mo...

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Hacker News: Front Page • 2026-07-27 06:18

Kimi-K3 Releases on HuggingFace 6/27

Article URL: https://huggingface.co/moonshotai/Kimi-K3 Comments URL: https://news.ycombinator.com/item?id=49065752 Points: 20 # Comments: 3

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DEV Community • 2026-07-27 06:18

AI-Assisted End-to-End Product Development

Anyone can ship software alone now. This is a methodology for shipping software that holds up — under load, under attack, and under constraint. 1. The problem Shipping a software product alone is becoming common. Shipping one that holds up is not. The first fact is genuinely new, and it is not the interesting part. The interesting part is what happens next. The product me...

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DEV Community • 2026-07-27 06:17

It Passed Because It Never Looked

I ran the typechecker. It passed. I ran the build. It passed. I pushed, and a page that carries a large share of the site's traffic started rendering an error screen instead of content. The error was not subtle: error TS2350: Only a void function can be called with the 'new' keyword. That is about as blunt as TypeScript gets. It is not an edge case, not a version-specific quirk, not some...

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DEV Community • 2026-07-27 06:17

I made an invoice PDF API that doesn't need a headless browser

Generating a PDF shouldn't require a headless browser Every time I needed to generate an invoice or receipt PDF, the options were: wrestle a low-level PDF library, fight a templating engine, or spin up headless Chromium (slow, heavy, breaks on fonts, painful to host). For a document, that felt absurd. So I built InvoicePDF: POST JSON, get a clean invoice PDF back. That's the whole thin...

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DEV Community • 2026-07-27 06:13

[Ruby] How to Truly Understand unless and until

I frequently see comments that 'unless' and 'until' are difficult to understand. I've also heard that it's prohibited in tools like rubocop. This is a fundamentally flawed way of thinking. As a basic principle, abandon the idea of ​​"if it becomes false". The basic principle is to remember what happens when it becomes true, and you won't get confused. unless Think of unless as ...

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