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Generating OG Images at Build Time with Satori and Astro
Every page on this site ships with its own Open Graph image, the little card that shows up when you paste a link into Slack, X, or iMessage. None of them are drawn by hand. Each one is generated at build time by two tools working in sequence: Satori turns a chunk of JSX styled with a CSS subset into an SVG, and resvg-js rasterizes that SVG into a PNG. The result is a static .png for the homepage, the blog index, every post, and every tag, all baked into dist/ and served straight from the edge wi
React useOptimistic Hook Complete Guide (React 19 (Hindi)
React 19 ka useOptimistic hook kya hai aur ye aapke UI ko super-fast kaise banata hai? Is Hindi guide me step-by-step seekhein iska use karna.Dosto, kya aapne kabhi socha hai ki Facebook ya Instagram par 'Like' button dabate hi woh turant blue ho jata hai, bina server se response aaye? Ye koi jaadu nahi hai, ise kehte hain Optimistic UI Update. React 19 se pehle humein iske liye complex state management karna padta tha, lekin ab hamare paas useOptimistic hook hai.⚡ Quick Answer: useOptimistic ek
Why your regex for IBAN validation is probably wrong
A regex like /^[A-Z]{2}\d{2}[A-Z0-9]{11,30}$/ will pass through plenty of IBANs that are complete garbage. It checks the shape — two letters, two digits, then alphanumerics — but shape isn't validity, and this is the mistake nearly every from-scratch IBAN validator makes.Here's what a shape-only regex misses, in order of how often it bites people:1. Country-specific length. IBAN length isn't a range, it's a fixed number per country: Germany is always 22 characters, the Netherlands 18, Malta 31.
How to generate QR codes for free with an API
Generating a QR code server-side usually means pulling in a heavyweight image library, or shelling out to a third-party service that watermarks the output or rate-limits you into a paid plan. Here's the simplest version that actually works in production.The core idea: a QR code is just a grid of black/white modules encoding your data with Reed-Solomon error correction, then rendered as an image. You don't need to implement the encoding yourself — you need an endpoint that returns either a ready-
Buying Telegram Accounts H3:A Comprehensive Guide
Buying Telegram Accounts H3:A Comprehensive Guide24 hours response/(Contact US)➤ WhatsApp: +1 (262) 452-2139➤ Telegram: @pvasmmmarket➤ Email: [email protected] Navigating the world of social media can feel like a maze, especially when you're looking to expand your reach. Telegram has emerged as one of the most popular messaging platforms, known for its focus on privacy and security. With millions of active users worldwide, it's no wonder that people are eager to buy Telegram accounts to tap
Slaying the N+1 Dragon: A Database Optimization Quest Inspired by The Lord of the Rings
The Quest Begins (The "Why")Honestly, I was just trying to get a simple blog feature working: show a list of posts with their author names and the number of comments each post had received. The UI looked fine, but every time I refreshed the page the response time crawled from a snappy 120 ms to a painful 800 ms. I opened the DevTools network tab, clicked on the API endpoint, and there it was—dozens of identical SQL queries flashing in the console, each one fetching a single comment count o
Building Accessible Popups Natively with the HTML5 <dialog> Element
Many developers still rely on heavy, third-party JavaScript frameworks or external UI libraries just to create simple popups and modal windows. This introduces bloated bundle sizes, slows down page speed, and often ruins accessibility (a11y) for keyboard users and screen readers. Fortunately, you can build an accessible, highly interactive modal window completely natively using the modern HTML5 <dialog> element. The Code SetupHere is how simple it is to build a native modal with seman
Building a Free HEIC Converter and Invoice Generator as Browser-First Tools
Two common daily problems are still annoying in 2026: opening iPhone photo formats outside the Apple ecosystem, and creating a clean invoice without registering for another SaaS product.I built two small browser tools around those jobs. LivePhotoKitLivePhotoKit is a free HEIC and Live Photo converter. It is useful when you receive iPhone photos on Windows or Android and just need a quick browser-based way to view or convert them.https://livephotokit.com/ InvoicePadInvoicePad is a free
I Spent 2 Years Building a React Publishing Solution — Here Is What I Learned
If you are a front-end engineer, you have probably lived this loop:The team decides the marketing site or blog should run on React / Next.js.You evaluate Strapi, Payload, Contentful, Sanity, Ghost, Tina — each is good at something, yet none ships a complete publishing platform you can install, write in, and publish from on day one.You fork a Next.js blog starter, wire up a Headless backend, then build media handling, comment moderation, SEO metadata, preview mode, and deployment scripts yourself
Multigres v0.1 Alpha: A Game-Changer for Postgres Scaling
As a developer who has worked with Postgres for years, I've always been impressed by its reliability and flexibility. However, one area where Postgres can struggle is horizontal scaling. That's why I'm excited about the release of Multigres v0.1 alpha, an operating system for Postgres that promises to bring Vitess-grade horizontal scaling, high availability, and operational simplicity to the popular database management system. What is Multigres?Multigres is an open-source project that aims
OPERATORS IN JAVASCRIPT
Operators in JS:In JavaScript, operators are symbols or keywords used to perform operations on values (operands).They are the building blocks of expressions and allow you to manipulate data, perform calculations, compare values, and control logic.Operators fall into three arities based on how many operands they take:Binary takes two operands, one on each side: a + b, x === yUnary takes a single operand, before or after: typeof x, x++Ternary takes three operands: condition ? a : b Type
How I Built and Launched an AI-powered Bible App with React Native, Firebase, and OpenRouter
Last week, I launched Daily Reflection, an AI-powered Bible devotional app that I built completely on my own.The app delivers a fresh AI-generated devotional every morning, offers an offline Bible, AI-powered Bible chat, guided prayer, and Scripture recommendations based on emotions. Building it taught me a lot about AI architecture, cost optimization, Firebase security, and shipping a real product as a solo developer.In this article, I’ll share the technical decisions behind the app, the challe
The Ultimate Guide to Buying Naver Accounts in 2K26
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useFormState and useFormStatus in Next.js App Router — React 19 Form Handling
React 19 introduced two hooks specifically for server action forms: useFormState and useFormStatus. Together they solve the main UX problems with form submissions — showing loading states, displaying server errors, and updating UI based on server responses — without requiring client-side state management for the form itself.Here's how both hooks work in Next.js App Router and the patterns that produce the cleanest implementations, including the approach used for the generation form at AI present
The 9 Best Sites to Buy Old Gmail Accounts for
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Top 23 Reliable Websites for Buying Gmail Accounts
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React useId Hook Kya Hai aur Kaise Use Karein
React useId Hook kya hai aur accessibility forms kaise banayein? Is Hindi guide me server-client ID mismatch aur complete usage step-by-step seekhein.हैलो दोस्तों! अगर आप ReactJS का इस्तेमाल कर रहे हैं, तो आपने कभी न कभी HTML Forms ज़रूर बनाए होंगे। जब हम Forms बनाते हैं, तो <label> और <input> को आपस में जोड़ने के लिए हमें id और htmlFor attributes की ज़रूरत पड़ती है। लेकिन क्या आपने कभी सोचा है कि जब हम एक ही Form component को एक ही पेज पर कई बार render करते हैं, तो क्या होता है? या
Show HN: Mindwalk – Replay coding-agent sessions on a 3D map of your codebase
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Under federal rule, colleges must leave grads better off or lose financial aid
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Building a GST Invoice App with Next.js for Indian Businesses
GST Invoice AppI needed a simple GST invoicing tool for my freelance work. Nothing fancy, just something that generates compliant invoices. FeaturesGST Compliant — CGST, SGST, IGST supportPDF Export — Download invoices as PDFClient Management — Save and reuse client detailsDashboard — Track invoices and payments Tech StackNext.js 14 — React frameworkTypeScript — Type safetyTailwind CSS — StylingjsPDF — PDF generation Why build this?Every GST tool I found was:SaaS with monthl
