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Build a Content Quality Checker in 10 Lines of TypeScript

import { readability, statistics, sentiment } from 'textlens';const text = await Bun.file('article.md').text(); // or fs.readFileSyncconst stats = statistics(text);const scores = readability(text);const mood = sentiment(text);const pass = scores.consensusGrade <= 10 && stats.avgSentenceLength < 25 && mood.label !== 'negative';console.log(pass ? 'PASS' : 'FAIL', `Grade ${scores.consensusGrade}`);That's a working content quality gate. It reads a file, checks the grade level

I Built a macOS Menu Bar App to Track My Freelance Time — Here's How

As a freelance developer juggling multiple clients, I had one recurring problem: I never really knew where my time was going.I tried spreadsheets. I tried Toggl. I tried telling myself "I'll write it down later." You know how that ends.So I did what any developer does when they can't find the perfect tool — I built my own. Meet KronoBar 👋 What is KronoBar?KronoBar is a lightweight macOS menu bar app that lets you log time entries per client and project, without ever leaving your workflow. I

Beyond the API Wrapper: A Web Developer's Deep Dive into RAG (Retrieval-Augmented Generation)

IntroductionTake a look around the tech ecosystem today. Every week, hundreds of new "AI startups" launch on Product Hunt. However, if you peek under the hood, 90% of them are just thin UI wrappers around the OpenAI or Anthropic APIs. While building a basic chatbot is a fun weekend project, it provides zero defensive moat for a real business. Enterprise clients don't just want an AI that can write poems; they want an AI that can read their proprietary PDF reports, query their private datab

React Native offline-first: conflict-safe SQLite sync

I store edits in SQLite as an outbox. Not memory.I use per-row updated_at + deleted_at for merges.I ship a single pull -> push -> ack sync loop.I fixed a brutal “ghost reappearing sets” bug. ContextI’m building a React Native fitness app. Fast logging. Like 5 seconds per set.Offline isn’t optional. Gyms have dead zones. Airplane mode happens. And the app still needs to work.I started with “just write to SQLite locally, sync later.” Sounds fine. Then I hit conflicts.Same workout edited

Something is afoot in the land of Qwen

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From Code to Cloud: Deploying My Developer Portfolio in One Click with Kuberns AI

The Build: A Portfolio Built for PerformanceHi I'm Keerthana, an Embedded Systems and C++ Developer. I've recently chosen to build a brand-new developer portfolio from scratch. But what was even more important was making it fast! I chose not to use frameworks and instead implemented the interactive parts of the portfolio using Vanilla JavaScript math logic and CSS variables.The Challenge: Getting It LiveAfter making sure everything was perfect on the code side, it was time to get it live! This i

Cold vs Hot Observables in RxJS Explained

Understanding the difference between cold and hot observables is essential when working with RxJS. Depending on how values are produced, observables fall into two categories Cold and Hot. Cold ObservablesA cold observable produces values internally and only starts producing them when someone subscribes. This means that each time an Observer subscribes, the Observable starts a new execution and produces a fresh set of values for that specific Observer.A classic example of a cold observable i

📊 From Excel to SQL in Seconds: Meet Your New Favorite Firefox Extension

Tired of manually writing CREATE TABLE statements for every Excel spreadsheet that lands on your desk? We've all been there. A client sends you product data in Excel, a stakeholder wants it in the database, and you're stuck mapping columns to data types. It's tedious, error-prone, and honestly? It should be automated.Introducing the Excel to SQL Query Generator – a privacy-first Firefox extension that transforms spreadsheets into clean SQL in seconds. ✨ What Makes This Different?Unlike onli

I Built a Chrome Extension That Alerts You When Roblox Profiles Change

Roblox profiles change frequently, but Roblox itself doesn’t notify you when something updates.For example, if someone changes their username, updates their friend list, or modifies their inventory, the only way to notice is by manually checking their profile.That becomes tedious very quickly.So I built a small Chrome extension called RoTrail that sends alerts when Roblox profiles change.The ProblemRoblox currently does not provide built-in notifications for profile updates.If you want to know w

Under the Hood: Building a RESTful API from Scratch with Vanilla Node.js

IntroductionWe live in an era of npm install magic-framework. If a modern developer needs to spin up a backend API, the immediate instinct is to install Express, NestJS, or Hapi. While these frameworks are incredible for productivity, they act as massive black boxes. When a complex network bug occurs, or when a memory leak happens in the routing layer, developers who only know the framework often hit a wall. They understand how to use the tool, but they don't understand how the machine act

Why RxJS Makes Asynchronous JavaScript Easier

Handling asynchronous code in JavaScript can become messy quickly. Nested callbacks, chained promises, and complex async workflows often make code difficult to maintain.Whether you're dealing with API calls, user events, or real-time data streams, managing asynchronous data efficiently is critical.In plain JavaScript, asynchronous logic is typically handled using:callbackspromisesasync/awaitWhile these approaches work well for many situations, they have limitations, especially when working with

Create a Real-Time Brand Crisis Alert System (Reddit + Twitter)

A brand crisis doesn't start on the front page of the New York Times. It starts in a Reddit thread or a viral Tweet.If you're managing a brand, finding out about a PR disaster 12 hours after it happens is too late. You need to know the moment negative sentiment spikes.In this tutorial, we'll build a Node.js script that monitors Reddit and Twitter (X) for mentions of your brand, runs sentiment analysis on the posts, and sends a Slack/Discord webhook alert if a highly negative post starts gaining

Evaluating Client-Side Document Processing in Next.js: Architectural Trade-offs

IntroductionWhen building document utility applications, developers inevitably face a critical architectural crossroad: Should file manipulation occur on a backend server, or directly within the user's browser?Historically, heavy lifting was always delegated to the server. However, with the rise of strict data privacy regulations (like GDPR) and the increasing power of modern browsers, client-side processing—often referred to as the Local-First approach—has become a highly attractive propo

The one science reform we can all agree on, but we're too cowardly to do

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"It Turns Out"

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Apple Introduces MacBook Neo

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Next.js Caching Explained: Every Strategy You Need to Know (React cache, use cache, cacheTags & More)

Caching in Next.js has always been powerful. But since the App Router, it has also become deeply layered, sometimes confusing, and — if you get it wrong — quietly responsible for stale data, broken UIs, and slow apps.This guide covers everything: React's cache() function, Next.js's new use cache directive, cacheTag, revalidateTag, unstable_cache, the full request lifecycle, and the mental models you need to reason about all of it confidently.By the end, you will know exactly what caches exist in

Glaze by Raycast

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MyFirst Kids Watch Hacked. Access to Camera and Microphone

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How I Built an AI-Powered Terminal Adventure Portfolio and Deployed It in One Click

# How I Built an AI-Powered Terminal Adventure Portfolio and Deployed It in One Click![]I recently participated in the Kuberns AI Portfolio Hackathon 2026, where the challenge was simple: deploy a portfolio with AI features on Kuberns and share it publicly. What started as a requirement turned into one of the most enjoyable projects I've built. 🎮 The Concept: A Terminal Adventure GameInstead of a standard "about me" page, I wanted something that would engage visitors and reflect my develope