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Build an AI Assistant Web App Using Streamlit
DEV Community • 2026-04-15 19:03

Build an AI Assistant Web App Using Streamlit

In the previous blog, we built an AI assistant using PromptTemplate and LangChain to generate: a clinic name possible clinic locations In this blog, we will take the same idea and turn it into a simple web app using Streamlit. This makes the project more practical because users can: select a clinic type choose a city set a distance range instantly generate a clinic name and suggested locati...

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3m read
DEV Community • 2026-04-15 19:02

SFMC Data Extension Sync: Monitoring Hidden Delays

SFMC Data Extension Sync: Monitoring Hidden Delays Marketing campaigns fail in silence more often than they fail with alarms. While Salesforce Marketing Cloud's monitoring dashboard alerts you to outright Data Extension import failures, it remains frustratingly quiet about the performance degradation that can destroy campaign timing and segmentation accuracy. The challenge with SFMC da...

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5m read
DEV Community • 2026-04-15 19:01

Claude Mythos Preview: Capability, Cybersecurity, and the Governance Gap

Why Claude Mythos Preview Deserves Serious Attention Claude Mythos Preview is not just another model release cycle headline. It is a useful case for discussing a harder question in AI: what happens when software intelligence scales faster than institutional controls. Anthropic introduced Mythos in a restricted-access model through Project Glasswing, emphasizing defensive cybersecurity ...

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3m read
DEV Community • 2026-04-15 19:00

Making AI Work With Humans — Not Against Them

AI is getting smarter every day — but today I learned something more important than model size or accuracy. AI is only valuable if it works with humans, not instead of them. Today’s learning focused on human‑centered AI, feedback‑driven learning, and safety — the pillars that turn AI from a risky black box into a trusted partner. Key Takeaways Human‑Centered Design (HCD) AI should support human ...

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1m read
Turning JPGs into Excel… because why not? 😂
DEV Community • 2026-04-15 19:00

Turning JPGs into Excel… because why not? 😂

Turning JPGs into Excel… because why not? 😂 Sometimes you don’t build things because they’re useful. You build them because you can. This is exactly how jpg2xlsx was born. 👉 https://github.com/Tlaloc-Es/jpg2xlsx 💡 The idea What if… instead of inserting an image into Excel… we recreated the image using cells? Each pixel → one Excel cell Each cell → background color of that pixel R...

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2m read
DEV Community • 2026-04-15 19:00

Load Balancing with Nginx: Practical Examples

Are you experiencing website slowdowns or server crashes during peak traffic? This article will guide you through implementing load balancing with Nginx, a powerful and widely-used web server, to distribute incoming traffic across multiple servers. We'll cover practical examples to ensure your applications remain responsive and available. What is Load Balancing? Imagine a popular resta...

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8m read
Product Hunt — The best new products, every day • 2026-04-15 18:59

Athena

Claude Code for Product Teams Discussion | Link

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1m read
HackerNoon • 2026-04-15 18:58

Bitunix Exchange Secures ISO 27001:2022 Certification, Reinforcing Strong Protection of User Data

Industry-first innovations like Fixed Risk, TradingView-powered chart suite, along with indicator alerts, cloud-synced templates, provide both beginners

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1m read
DEV Community • 2026-04-15 18:52

I Built a Phone Number Validator & Formatter API for 50+ Countries — Day 6 of 21

Day 6 of my 21-day API challenge is done. Yesterday I built an Email Validator. Today I built a Phone Number Formatter & Validator API — validate any international phone number, detect the country, classify the number type and format it in E.164, international and national formats. Previous days: Day 1 — Invoice & Receipt Parser API Day 2 — Password Strength & Security Scorer API D...

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4m read
Building a UI Without Breakpoints
Frontend Masters Boost RSS Feed • 2026-04-15 18:51

Building a UI Without Breakpoints

This article covers a layout approach that better fits the modern web: fluid, intrinsic components that adapt by default, and treat conditional rules as local, intentional exceptions.

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1m read
DEV Community • 2026-04-15 18:51

How to test Stripe webhook signatures locally without breaking verification

The request usually succeeds first. The signature check is where the time disappears. Most Stripe integrations do not fail on the first API call. You create the customer. You create the PaymentIntent. You confirm it. Everything looks fine. Then the webhook arrives and your handler says invalid signature. That is usually the moment the debugging session starts. The annoying part is that the fai...

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3m read
Product Hunt — The best new products, every day • 2026-04-15 18:50

Themery

Build beautiful themes for your IDE Discussion | Link

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1m read
DEV Community • 2026-04-15 18:49

AI Slop vs The New Engineering

The world is divided. Don’t ask me to give exact percentage differentials, but a load of people love using AI and a lot of people hate it. That divide isn’t any less prevalent in Software Engineering. Let me preface this by saying I’m a heavy user, in a company that is actively pushing agentic first coding. This post will probably be biased. That being said, there are still people in the company ...

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5m read
DEV Community • 2026-04-15 18:49

Is my QA team big for a company?

Is Your QA Team Really Too Big—Or Is Something Else Broken? In many growing technology organizations, a familiar question eventually arises: “Is our QA team too large?” At face value, this appears to be a question about cost, efficiency, or team structure. But more often than not, it reflects a deeper issue—how quality is managed across the development lifecycle. The Invisibl...

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3m read
A Polite Port Scanner in 400 Lines of Tokio
DEV Community • 2026-04-15 18:48

A Polite Port Scanner in 400 Lines of Tokio

A Polite Port Scanner in 400 Lines of Tokio nmap is a great tool. It is also the wrong tool for the question I ask my laptop about fifteen times a day: "did postgres come up on 5432, or did docker bump it to 5433 again?" So I wrote a tiny one. Localhost by default, concurrent via tokio, honest about what it can and can't see. Here is the design. 🔗 GitHub: https://github.com/sen-ltd/p...

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11m read
Counting TypeScript Escape Hatches — A Zero-Dependency CLI with a Baseline Gate
DEV Community • 2026-04-15 18:48

Counting TypeScript Escape Hatches — A Zero-Dependency CLI with a Baseline Gate

Counting TypeScript Escape Hatches — A Zero-Dependency CLI with a Baseline Gate Teams migrating JS → TS reach for any, @ts-ignore, and as unknown as X for perfectly good reasons. But without a CI gate, those escape hatches accumulate and the migration never actually finishes. I built a tiny CLI that counts them, enforces a baseline, and takes up 136 MB of Alpine. 📦 GitHub: https://gi...

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11m read
Woman-Founded and Led Solana Project Kokopi Koalas Launches $KOKOP Token and NFT Project
HackerNoon • 2026-04-15 18:48

Woman-Founded and Led Solana Project Kokopi Koalas Launches $KOKOP Token and NFT Project

New York, New York, April 15th, 2026/Chainwire/--Community-first NFT ecosystem built on Solana signals a new era for dynamic digital ownership - with a historic NFT launch on the horizon. Kokopi Koalas ($KOKOP) officially launched on March 9, 2026, as a 100% fair-launch token on pump.fun. Within hours, it graduated and secured verified listings on Jupiter, Birdeye, CoinGecko, and GeckoTerminal. In...

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4m read
DEV Community • 2026-04-15 18:47

I Tried Every Claude Code Editor. Here Is What Actually Works

Claude Code itself is not the hard part. The hard part is everything around it: planning the work, tracking multiple sessions, reviewing diffs, and keeping branch state sane once you stop using it like a toy and start using it like part of your real workflow. That is what I was optimizing for when I went looking for the best Claude Code interface. Two disclosures up front: I care more about w...

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4m read
DEV Community • 2026-04-15 18:47

Create Directories in PowerShell: New-Item for Folders

Create Directories in PowerShell: New-Item for Folders Building folder structures is foundation work. Learn to create organized directories quickly. How It Works New-Item creates new files and folders. When you specify -ItemType Directory, it creates a folder. PowerShell is smart—it creates parent folders if they don't exist yet. Instead of making folders one at a time thro...

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2m read
Hacker News: Front Page • 2026-04-15 18:44

Thomson Reuters Fired Worker for Speaking Out About ICE, Former Employee Says

Article URL: https://www.404media.co/thomson-reuters-fired-worker-for-speaking-out-about-ice-former-employee-says/ Comments URL: https://news.ycombinator.com/item?id=47783416 Points: 11 # Comments: 1

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1m read
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