I added profile-specific duplicate rules to my CSV intake console #4
DEV Community • 2026-04-19 20:55

I added profile-specific duplicate rules to my CSV intake console #4

In the previous step, I added company-specific CSV import profiles so the intake flow could understand different source formats: [Previous article: company-specific CSV import profiles] https://dev.to/fastapier/i-added-company-specific-csv-import-profiles-to-my-intake-console-42eh That solved one operational problem: different companies send different column names. But it still left another on...

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Newest questions tagged css - Stack Overflow • 2026-04-19 20:51

CSS commands, are they correct, maybe somethink to work on?

This website is a simple file exploration tool built using PHP and basic frontend technologies. It scans directories on the server and dynamically displays their contents in a structured and visual way. body { margin: 0; font-family: Libre Franklin; background: skyblue; color:; } .menu { justify-content: center; list-style: none ; display: flex; text-align: center; gap: 10px; }...

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DEV Community • 2026-04-19 20:48

The $36,000 A/B Test: What Optimizely Charges vs. What the Algorithm Actually Costs

You Just Want to Test Two Buttons You're a developer at a Series A startup. Your product manager walks over and says: "We need to A/B test the signup flow. Three variants, maybe four. Can you set that up this week?" Simple enough. You've read about multi-armed bandits. You know the theory. You start looking at tooling. Then you open Optimizely's pricing page. Or rather, you try to — b...

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DEV Community • 2026-04-19 20:45

My first daily update here - moving on with day 107

I have a long-running series of daily web dev diary on LinkedIn, but I decided to move it to a more developer-related community, so here is how my day of learning went! I'm continuing to dive deeper into React, and today I studied State and the best practices when working with it, as well as some stuff to avoid. Mainly explored the state structures and the entire 'State as a Snapshot' concept and...

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DEV Community • 2026-04-19 20:43

The Rise of Inference Optimization: The Real LLM Infra Trend Shaping 2026

The large language model space is moving fast, but one trend is quietly defining the next phase of AI: inference optimization. While headlines focus on bigger models and benchmark wins, the real innovation is happening behind the scenes. Teams are no longer asking how to build smarter models. They are asking how to run them efficiently, cheaply, and at scale. If you care about LLM infrastructure,...

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DEV Community • 2026-04-19 20:39

Moonbug: a cosmic lunar calendar and event catalogue

🌎 Earth Day Challenge: Moonbug Submission Template Project Name: Moonbug Tagline: A community-driven lunar ecosystem that grounds your digital life in the rhythms of the natural world. 🌑 1. What did you build? (Project Overview) I built Moonbug, a tranquil nature-tracking platform and mobile app that replaces traditional 24-hour scheduling with Lunar Cycles. It features an integrated 'My Moon' ...

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DEV Community • 2026-04-19 20:35

Designing a Scalable Character Stats & Abilities System for an MMORPG (UE5)

Dev Log #8 — Character Stats & Abilities System (Magickness™) Development is moving deeper into core RPG systems for Magickness™. This dev log focuses on building the foundation for: Character stats Ability systems Progression structure Why This Layer Matters This is one of the most critical systems in an RPG. It defines: how players grow how combat behaves h...

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DEV Community • 2026-04-19 20:35

Show Dev: A Dragon That Burns Your Village If You Misspell

The pitch I built The Dragon's Dictionary: a bilingual (English/Portuguese) word game where a hoarding dragon eats words you feed it. Spell them right, the dragon is pleased and adds them to its hoard. Spell them wrong, and it torches your village. It started as a joke about how Duolingo's owl is menacing but polite. I wanted something that felt genuinely unhinged — a creature that car...

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my-cool-blog - jerseyctf6
DEV Community • 2026-04-19 20:34

my-cool-blog - jerseyctf6

Challenge Overview This challenge involves chaining multiple vulnerabilities — Directory Traversal, Local File Inclusion (LFI), and a PHP filter bypass — to extract database credentials and retrieve the flag directly from a PostgreSQL database. Key concepts: LFI, Directory Traversal, PHP filter wrapper, Base64 bypass, PostgreSQL enumeration Step 1 – Reconnaissance The ch...

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I built Debuggle — a desktop app that explains any error at 3 levels of depth
DEV Community • 2026-04-19 20:34

I built Debuggle — a desktop app that explains any error at 3 levels of depth

Every developer has been there: you paste an error into Google, find a Stack Overflow answer from 2014, and still have no idea what actually went wrong. I built Debuggle because I was that developer — and I still am, honestly. I've only been coding since late 2024. I needed a tool that didn't assume I already knew what a null pointer exception meant at a deeper level, or why a specific Node.js...

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Hacker News: Front Page • 2026-04-19 20:32

Islamic Medicine (2018)

Article URL: https://hekint.org/2018/11/19/islamic-medicine/ Comments URL: https://news.ycombinator.com/item?id=47827424 Points: 4 # Comments: 0

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C# Lowering: The Compiler Magic Behind Your Code
DEV Community • 2026-04-19 20:31

C# Lowering: The Compiler Magic Behind Your Code

This article is based on official sources, compiler code exploration, experimentation using decompiler tools, and real-world experience. Have you ever been told that a for loop is faster than a foreach, or that yield return is slow because it hides a state machine underneath? In modern C#, these differences are often negligible. But over a decade ago, I remember a specific question from my fir...

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From GPS Coordinates to Screen Pixels: The Full AR Projection Math
DEV Community • 2026-04-19 20:30

From GPS Coordinates to Screen Pixels: The Full AR Projection Math

I've been building an Android app that overlays aircraft labels on a live camera feed when you point your phone at the sky. You fetch a plane's position from an ADS-B API, you have your own GPS location, and the goal is to draw a label at the correct pixel on screen. The problem sounds straightforward until you try to implement it. There are four distinct coordinate spaces between the aircraft's ...

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DEV Community • 2026-04-19 20:29

I'm with STUPID ⤴️

I have an idea. As serious and professional developers of serious and professional things, we have all encountered the standard, boilerplatey documents in serious and professional projects. Such files include, but are not limited to README - project overview, install/usage instructions, badges CONTRIBUTING - how to contribute, PR process, code style expectations CHANGELOG - version histor...

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Newest questions tagged css - Stack Overflow • 2026-04-19 20:28

First code to my school project, Im trying to be best

Ak to chceš na StackOverflow trochu viac "rozpísať", aby to nevyzeralo odfláknuto a niekto ti reálne poradil, použi tento formát. Je to profesionálnejšie a skôr dostaneš normálnu odpoveď. Subject: Code Review: Simple PHP Image Gallery with Directory Scanning and Price Calculation Body: Hi everyone, I'm working on my first PHP project for school. The goal is to create a dynamic gallery th...

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Newest questions tagged css - Stack Overflow • 2026-04-19 20:28

Simple PHP Image Gallery with Directory Scanning and Price Calculation [migrated]

My goal is to create a dynamic gallery that scans a local directory for images, displays them, and performs some basic logic like counting items and calculating a discounted price. I've managed to get it working, but as a beginner, I'm sure there are things I'm doing inefficiently or "the old way." I'm looking for feedback on my overall logic and code structure. Specifically, I'm interes...

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DEV Community • 2026-04-19 20:26

Copilot ajuda muito, mas você continua 100% responsável pelo seu código .NET

Ferramentas de IA como o GitHub Copilot mudaram completamente a forma como desenvolvemos software em .NET. Elas aceleram tarefas repetitivas, sugerem soluções e podem gerar blocos inteiros de código em segundos. Mas há uma verdade que muitos desenvolvedores aprendem da pior forma: Usar IA aumenta sua produtividade, mas não elimina sua responsabilidade. Isso significa que, mesmo que o código fun...

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Hacker News: Front Page • 2026-04-19 20:25

Swiss authorities want to reduce dependency on Microsoft

Article URL: https://www.swissinfo.ch/eng/swiss-ai/swiss-authorities-want-to-reduce-dependency-on-microsoft/91280532 Comments URL: https://news.ycombinator.com/item?id=47827383 Points: 21 # Comments: 1

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DEV Community • 2026-04-19 20:14

Every digital business card tool sucks, so I built my own and open-sourced it

I needed digital business cards for a small team. Should be simple, right? I spent way too long looking at existing tools before I snapped and just built my own. Here's why. The problem Every tool I tried had at least one of these issues. Most had all of them. They charge you per card. Per month. We're talking about a styled HTML page with your name and phone number on it....

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Newest questions tagged javascript - Stack Overflow • 2026-04-19 20:14

CEF Linux SendKeyEvent Ctrl+A produces empty DOM key/code

I am using CEF on Linux (OSR/windowless) with an SDL2 input bridge. I want to send a native Ctrl+A shortcut to a focused editor using CefBrowserHost::SendKeyEvent (not a JavaScript selection workaround, which does work). Current approach I send 4 events in this order: Ctrl down A down A up Ctrl up void App::SendCtrlA() { if (!client_ || !client_->GetBrowser() || !client_->GetBrows...

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