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ArchScope Engineering Update: Multi-Selection & Undo/Redo Implementation (April 14, 2026)
Implementing Multi-Selection and Undo/Redo in ReactFlow: A Technical Deep Dive IntroductionToday, we are implementing a comprehensive multi-selection system with undo/redo functionality. This was a technical challenge that tested our understanding of ReactFlow's internal state management.The requirement was to make a box to select and move multiple components, the kind present in file systems, where, when you click and drag, a box appears and whatever is inside the box is selected and
I built an open-source WMS because every warehouse management system costs $2,000/month
Every WMS on the market is either a six-figure enterprise implementation, a $500-3,000/month SaaS with workflows you can't change, or an ERP bolt-on that was never designed for a warehouse floor. There has never been a credible open-source alternative built for e-commerce fulfillment. Today that changes.I'm a warehouse manager at an e-commerce company. 8,000 orders/month, 5 scanning stations, and I function as the entire technology department. I needed a WMS that didn't force my team into someon
Building Real-Time Applications with WebSockets in 2026: Architecture, Scaling, and Production Patterns
Published: April 14, 2026Reading Time: 15 min readTags: websockets, realtime, nodejs, architecture, scalingReal-time applications are exploding in 2026. From collaborative editing to live gaming, from financial trading to social features, WebSockets have become the backbone of modern web applications. But building a production-ready WebSocket system is far more complex than just spinning up a Node.js server.In this comprehensive guide, we'll dive deep into WebSocket architecture at scale, explor
Why Developers Need to Start Using AI Voice Generators in 2026
If you are building an app, a SaaS product, or a digital course, you've likely hit the "audio bottleneck." High-quality audio traditionally requires a quiet environment, decent microphone hardware, and significant time spent editing out background noise and breaths. For developers and indie hackers trying to move fast, this is a major workflow killer.Fortunately, the Voice AI landscape has matured rapidly. Venture capital investment in voice technology jumped from $315 million in 2022 to over $2
I built a headless hook, ref API & ledger view for my React accounting component
react-accounting-diary v2.3.0: headless hook, imperative ref API, ledger view, validation callbacks, category/tags, JSON import/export. TL;DRreact-accounting-diary is a lightweight React component for generating accounting diaries with export to PNG, JPEG, PDF, CSV, Excel, and JSON.v2.3.0 adds 6 major features that turn it from a UI component into a full accounting toolkit. Here's what changed.Live Demo → What's new in v2.3.0 1. Headless hook — useAccountingDiaryThe biggest additi
Interactions: Make Your WordPress Site Interactive – Add Scroll Animations, Hover Effects.
Interactions: Make Your WordPress Site Interactive – Add Scroll Animations, Hover Effects, Click Triggers, and Interactions to Any WordPress Block Without Coding – My AppSumo ReviewIn early 2025 I was a $2,400/mo freelance WordPress developer and digital marketer in Rajshahi, Bangladesh. Most of my client websites looked professional but felt static and boring. Basic pages with text, images, and simple buttons rarely kept visitors engaged. I wanted to add scroll animations, hover effects, click
How to Optimise a Next.js Web App
https://aayushbharti.in/blog/how-to-optimise-a-nextjs-web-appYour Next.js app scores a 54 on Lighthouse. You shipped it three months ago with a perfect 100, and now there's an analytics SDK, a cookie banner, two icon libraries you imported wrong, and a client component wrapping your entire layout because someone needed useState in the header. I've been there — more than once — and the fix is never one silver bullet. It's twenty small decisions compounding in the right direction.This is every opt
5NF and Database Design
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How I turned a single Supabase query into 19GB of egress
The problemI caught it in Supabase billing metrics: one dashboard query was responsible for a massive jump in egress, way out of proportion to the actual traffic.At first, it looked like a normal internal dashboard issue. In reality, a single .select('*') on a large table was quietly pulling far more data than the UI ever needed. Technical contextThe app is ReadyToRelease, built with Next.js 14 and Supabase, and this query lived inside an internal dashboard. It was not a Stripe bug, n
Why Our React Server Components Broke During a Next.js 15 Upgrade
You know the feeling: you finally get sign-off to upgrade your Next.js app, thinking it’ll be a weekend project. Maybe you’re excited about faster builds, or you just want to keep up with the latest. But then, out of nowhere, half your Server Components explode with cryptic errors. That’s exactly what happened to us during our jump to Next.js 15. If you’re running Server Components, or thinking about upgrading, I’m here to walk you through what actually broke, why, and how we got things running
Making Domternal Accessible. What WCAG 2.1 AA Actually Looks Like in a Rich Text Editor.
Rich text editors are one of the hardest UI components to make accessible. A contenteditable element, custom toolbars, floating menus, dropdown panels, emoji pickers, table controls, autocomplete suggestions, popovers. Each one needs proper ARIA semantics, keyboard navigation, and focus management. Most of them are built with imperative DOM manipulation, not framework templates.I built Domternal, a ProseMirror-based rich text editor toolkit with Angular and React wrappers. The core editing was k
The Best Notification Libraries for React Native in 2026: Which One Should You Choose?
Notifications in React Native look simple—right up until you have to rely on them in a real app.Sending a notification is easy. Making it work consistently, with the app in the background, terminated, or running on modern Android versions with aggressive restrictions, is a very different problem.By 2026, the landscape has changed significantly. Some long-standing libraries have been archived, and the number of real options has narrowed. At the same time, the gap between the remaining choices is
AI Is Turning Frontend Development Into a Probabilistic Workflow — Not a Deterministic One
Frontend development has traditionally been one of the most deterministic areas of software engineering.You write code → you get predictable UI behavior.Same input. Same output. Every time.That predictability is what made frontend systems debuggable, testable, and scalable.But AI is quietly changing that foundation.Not by replacing frontend development — but by changing the nature of how frontend code is produced.We are moving from deterministic engineering to something more subtle:A probabilist
TanStack and Next.js: The De Facto Frontend Logic Layer for 2026
The Shift Toward Unified Data and Routing LogicThe frontend architecture of production applications has undergone a fundamental realignment. Where developers once treated data fetching, caching, and routing as separate concerns managed by competing libraries, TanStack Query and TanStack Router have become the canonical pattern for managing application state in Next.js environments. This consolidation is not a matter of marketing momentum; it reflects a genuine convergence between the probl
Removing Only the First Line of a Multi-Line String in JavaScript
Encountering a CSV File with an Unusual First LineI came across a CSV file like the one below. (This is not actual business data.)hogehogename,value,countりんご,100,2バナナ,150,4In this scenario, there's an unwanted string in the first line that isn't in CSV format. I needed to remove it before processing the CSV data. Let's assume the line breaks are LF. Removing Only the First Line of a Multi-Line StringSurprisingly, I couldn't find many articles on this topic, so I'm documenting it befor
How I Built a Full AI Coding Assistant in One Weekend
How I Built a Full AI Coding Assistant in One WeekendAs a developer who’s always looking for ways to streamline my workflow, I’ve been fascinated by the potential of AI coding assistants. Over the weekend, I decided to build my own custom AI coding assistant using OpenAI’s GPT-4 API. My goal was to create a tool that could help me write, debug, and optimize code more efficiently. Here’s how I did it, focusing on prompt engineering patterns, system prompts, and context window strategy.
A CSS box-shadow Designer That Keeps Each Layer as a Plain Object
A CSS box-shadow Designer That Keeps Each Layer as a Plain ObjectCSS box-shadow accepts a comma-separated list of shadow layers, but most visual editors only show one at a time. This tool shows all layers stacked, with per-layer controls, and the core logic is one pure function that turns an array of plain objects into the final CSS string.Most shadow generators let you tweak one shadow. But box-shadow is inherently multi-layered — the subtle soft shadows, the neumorphism double-light tric
The future of everything is lies, I guess: Work
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The Silent Billing Bug Every AI-Generated SaaS Has (And How Weekly Stripe Visibility Helps Catch It)
A post on Indie Hackers this week described something that should scare every founder who built their SaaS with an AI coding tool in the last year.The pattern: a Stripe webhook handler catches invoice.payment_failed. It returns 200 OK. Stripe marks it as delivered and moves on. But inside the handler, nothing actually happens. No database updated. No access revoked. The user keeps full access to the product — forever.The founder doesn't notice because their Stripe dashboard shows MRR coming in f
Show HN: LangAlpha – what if Claude Code was built for Wall Street?
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