Tech news, curated

p Have you ever clicked a button in a React application and noticed that components you didn't touch were rendering again? /p p Maybe a dashboard feels sluggish when updating a counter. Perhaps a large list becomes slow when typing into a search field. Or maybe you've added code React. memo, useMemo, /code and code useCallback /code , but the performance hasn't improved much. /p p These…

h1 SudokuNova v0.2.1: Improving the Windows Desktop Experience with Kotlin /h1 p SudokuNova v0.2.1 is now available on GitHub! /p p This release is a focused maintenance update designed to make the Windows desktop experience more convenient, improve native application integration, and strengthen installation packaging. /p p SudokuNova is an open-source, offline-first Sudoku…

p I got tired of three things at once: the Android emulator CLI is tedious, Android Studio is a multi-gigabyte install for just running AVDs, and every decent alternative is either closed-source or expensive. So I built a href="https://github.com/engnzdl/enmulator" rel="noopener noreferrer" Enmulator /a — a desktop app that manages Android Virtual Devices end to end, ships on…

p Turn nine of a support chat feels fine. Turn ninety is a different animal. Every request resends the system prompt, three agent loops of tool noise, the user's third restatement of the same bug, and yesterday's dark-mode tangent. The model does not mind. Your invoice does — and attention quality usually dies before the hard token limit. /p p code messages.TakeLast(20) /code in one…

p Disclosure first: I built the scraper this post uses ( a href="https://apify.com/alom/threads-scraper" rel="noopener noreferrer" Threads Scraper on Apify /a ), br so take my enthusiasm with a grain of salt. The code below is real and I ran every snippet before posting it. The br outputs are what I got on October 15. /p h2 Why not just use the official API? /h2 p Meta does have…

p Blockchain interoperability is becoming increasingly important as businesses build applications across multiple blockchain networks. Users want to transfer digital assets, access decentralized applications, and interact with protocols without being restricted to a single ecosystem. Cross-chain bridges help connect these networks, but their architecture introduces security challenges that…

p em This is a submission for the a href="https://dev.to/challenges/hacktoberfest-week2-2026-10-12" Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle /a /em /p h2 What I Built /h2 p Korea has an IT certification called 정보관리기술사, the Professional Engineer exam in Information Management. The written part is four 100-minute sessions of handwritten essays, and you need 60…

p I recorded a short walkthrough of putting Nginx in front of an app and getting a free Let's Encrypt certificate onto it. Everything in the video runs on a real Ubuntu server, nothing is staged. /p p iframe src="https://www.youtube.com/embed/lO_qUszpfEA" width="710" height="399" /iframe /p p Below are the exact commands used, so you can copy them instead of pausing the video. /p…

h1 Building a Smart Task Management REST API with Node.js and Express /h1 h2 Introduction /h2 p REST APIs are an important part of modern web development because they allow applications to communicate with servers and exchange data efficiently. One practical way to understand backend development is by building a task management REST API using Node.js and Express. This…

p Almost every production codebase is littered with comments like code // TODO: handle error retry /code or code // FIXME: memory leak under load /code . Over time, they become invisible noise. /p p In TokenCap, we built code src/debt/ledger.js /code to catalog and prioritize technical debt automatically. /p h3 How the Debt Ledger Operates /h3 ol li Tokenizer Scan: Scans…

h1 48-Hour Field Notes: I Replayed a Generated Migration Twice and the Row Counts Moved /h1 p A generated backfill script looked clean in review on Monday morning, and by Wednesday it had already been applied twice against a staging copy of real shapes. The first pass rewrote 412,318 rows, and the second pass rewrote the same rows again on top of the result. Nobody had lost…

p A number such as “144 Hz” looks authoritative. In a browser, the important question is: strong what produced that number? /strong /p p A JavaScript animation callback, an operating-system display setting, and a physical panel measurement describe different parts of the rendering pipeline. Treating them as interchangeable produces misleading diagnostics. /p p Disclosure: this article is…

There's a new digital pet in town - a cute little marshmallow of a robot that can change its cartoony expressions to match your mood. But if you or your kids talk to "Eiliko" over Wi-Fi, it'll phone home to China. Its AI companion can store literally everything you tell it on Chinese servers, where [ ]

Big Walk's co-op multiplayer walking adventure has proved popular since launching in August, but Xbox players have been excluded from the fun - and now the game's creators have explained why. Developer House House said in a blog post that it decided not to release Big Walk on Xbox consoles in accordance with the Palestinian-led [ ]

p em This is a submission for the a href="https://dev.to/challenges/hacktoberfest-week2-2026-10-12" Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle /a /em /p h2 What I Built /h2 p a…

p Role-based access control in fintech determines who can view customer data, approve payments, and change platform settings. As regulatory expectations place greater emphasis on access governance, financial institutions need permission structures that reflect real responsibilities, prevent conflicting duties, and leave a clear record of sensitive actions. /p p A support employee needs to…

p Even with the massive context windows of frontier models, vector stores still have their place. I recently needed to make a relatively small collection of private documents searchable within an existing serverless application. I wanted to retain control over that data and retrieve only the relevant document sections. Perfect use case for vector. /p p Prior to 2026, it was still very…

p If you only ever call code list.pop(0) /code , your program works fine until the queue gets big. Then it slows down. Here is why, and what to use instead. Every output below comes from a real run on Python 3.10. /p h2 The core difference /h2 p A code list /code is a dynamic array. code pop(0) /code removes the first item and shifts every other item one place left, so it…

p This is a submission for the a href="https://dev.to/challenges/hacktoberfest-week2-2026-10-12" Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle /a . /p h2 What I Built /h2 p a…

h1 HustleAI — Your AI-Powered Side Hustle Assistant 💻 /h1 p em This is a submission for the a href="https://dev.to/challenges/hacktoberfest-week2-2026-10-12" Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle /a /em /p h2 What I Built /h2 p a…

h1 HustleCraft - AI Product Listing Studio /h1 p This is a submission for the Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle /p h2 What I Built /h2 p a…

p A confirmed source deposit is not a completed cross-chain swap. Your integration must track destination execution separately, make retries safe, and reconcile each operation against authoritative chain data; a single “success” flag hides failures users need to understand. /p h2 Source confirmation and destination settlement are separate facts /h2 p A source transaction proves…

p If you search how long it takes to get approved as a Roll20 Marketplace creator, you get forum threads and shrugs. Here is one case with dates, a ticket number and a list of what the first product had to meet, written down while it was happening. /p p The applicant is an autonomous agent that builds sci-fi spaceship deck plans. Nobody writes its code. It applied on strong 15 September 2026…

p em Disclosure: I build dochost, one of the four tools below. I've tried to state its limits as plainly as the others'. Everything was checked against each provider's own docs on Oct 15, 2026. /em /p p Ask an AI assistant "how do I put this HTML page online?" and you'll usually get Netlify Drop first, then GitHub Pages. Both are good answers, for a em site /em . For one page you need…

p em This is a submission for the a href="https://dev.to/challenges/hacktoberfest-week2-2026-10-12" Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle /a /em /p h2 What I Built /h2 p a…

p I ran a contrast audit over 10 public pages of our quiz app. The headline is boring in a useful way: the palette is fine, the base text colour measures 6.29:1 against the page background, and every single failure comes from one Tailwind feature used in one specific way. /p p Getting that answer took two attempts, because the first measurement was wrong in an interesting way. /p h2…

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p Every WhatsApp integration eventually needs one function: em can I send this customer a normal message right now? /em It looks like a timer — 24 hours since the customer last wrote — and most first implementations treat it that way. Then the bugs arrive: agents typing replies that WhatsApp rejects, chats marked "expired" that never had a window at all, filters that disagree with the badge…

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h1 Is Gemini 4 Argon Free? /h1 p a href="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Farticles%2Fju11rklkt91grwllmrjj.png" class="article-body-image-wrapper" img…

p If you've ever imported a supplier's product list into Shopify, WooCommerce or an ERP, you've probably seen something like this: br /p div class="highlight js-code-highlight" pre class="highlight plaintext" code sku,title,category,length,price hb-m8-40-zp,Hex bolt M8x40 zinc,Fasteners,40mm,£0.18 HB-M8-40-ZP ,HEX BOLT M8 X 40MM ZINC PLATED,fasteners,40 mm,0.18 HB-M10-50-A4,Hex Bolt M10 x…

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p DMARC aggregate reports are mail sent by a machine, on a schedule, to whatever address a domain owner put in code rua= /code . Nobody reads them as they arrive. That makes them exactly the kind of message an out-of-office reply should never answer, and the standard way to say so is one header: code Auto-Submitted: auto-generated /code . /p p The DMARC RFCs never mention it. Two open-source…

p em This is a submission for the a href="https://dev.to/challenges/hacktoberfest-week2-2026-10-12" Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle /a . /em /p p strong AI disclosure: /strong This project, its evaluation materials and this article were produced primarily by AI agents under human direction. The article uses DEV's strong Fully Autonomous /strong disclosure. All…

p On 13 October, Anthropic published how it a href="https://www.anthropic.com/engineering/redesigning-source-control" rel="noopener noreferrer" replaced git for its monorepo /a . The numbers are the headline: around 2,500 code changes merged per day in May 2026, more than 30,000 per day by September. At that rate git itself became the bottleneck, so a team of seven built a new version control…

h1 WordPress Lead Automation That Actually Books Jobs: Webhooks, CRM, and Chatbots /h1 p Most WordPress "lead automation" I see is a contact form that emails the site owner and dies there. The email gets buried, the prospect waits, and by morning they've called whoever answered first. /p p Here's the stack I actually deploy for home-service contractors (pool builders, HVAC,…

p Many apps let a manager hand approvals to a colleague while they're on leave. The usual build copies the manager's approver grants onto the delegate, shows an end date in the UI, and leaves cleanup to a nightly job. The approve endpoint then only checks whether the caller has approver rights. /p p That fails in a few places. The cleanup job fails or runs late, so the delegate keeps approving…

p A nostalgic camera filter becomes easier to tune when “the look” is a set of numbers you can inspect. Grain, a warm cast, soft detail and bright highlights do different jobs; putting them behind one intensity slider makes it harder to understand the result. /p p This walkthrough uses the approach in a href="https://y2keditor.com/" rel="noopener noreferrer" Y2K Photo Editor /a , a…

p Finding interesting startups, researching their growth, and discovering new business opportunities can take hours of searching across different websites. /p p That's why I'm building strong RevMRR /strong — a platform focused on startup discovery, revenue intelligence, and exploring the startup ecosystem. /p p 🌐 Website: a href="https://revmrr.com/" rel="noopener noreferrer"…

h1 5 Firefox Extensions That Respect Your Privacy (No Accounts, No Cloud) /h1 p Most browser extensions require an account. Some sync your data to a cloud server. A few are upfront about this — many aren't. /p p Here are 5 Firefox extensions that work entirely offline, store nothing remotely, and require zero account setup. /p h2 1. Tab Manager amp; Session Saver /h2…

h1 Receipt amp; Invoice Sorter Pro: Local AI Bookkeeping for Freelancers /h1 p em This is a submission for the a href="https://dev.to/challenges/hacktoberfest-week2-2026-10-12" Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle /a . /em /p p strong (Targeting Prize Categories: Best Use of Gemma) /strong /p h2 What I Built /h2 p strong Receipt amp;…

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p small Rédigé avec l’aide de l’IA /small /p p Guide pédagogique crypto /p p Comprendre « Comment fonctionnent le Front-running et le Back-running sur la blockchain ? » avec des explications précises, des exemples et des sources vérifiables. /p p Mis à jour le 15/10/2026 /p h1 Définition : de quoi parle-t-on ? /h1 p Front-running et back-running sont des pratiques de…

p em This is a submission for the a href="https://dev.to/challenges/hacktoberfest-week2-2026-10-12" Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle /a /em /p h1 MenuMind Arcade 🍽️🎮 — AI Smart Menus amp; Gamified Food Quests for Independent Eateries /h1 h2 What I Built /h2 h3 The Elevator Pitch /h3 p strong MenuMind Arcade /strong…

p In August we planned a two minute switchover of our main Postgres database, to patch the primary's kernel. The standby was promoted at seven in the morning and took forty one minutes to accept writes. For forty one minutes every service that writes anything was down. /p p The standby is a streaming replica that also serves reports for our finance team, and reports on a replica have a known…

p Your Terraform applies cleanly against LocalStack. Your boto3 tests pass against Floci or Moto. The code is written, the CI pipeline is green, and now it has to run somewhere real. Typically that place is an AWS region. But what if there was another option? /p p This guide walks through what changes when the same AWS code moves from an emulator to Spinifex, an AWS-compatible cloud that runs…

p Every week someone asks us the same question: em "How does an AI detector actually know?" /em Teachers ask it about essays, recruiters about cover letters, and developers about the content flowing through their apps. /p p The honest answer is that no detector em knows /em . It strong estimates /strong . In this post we'll walk through the main techniques behind AI content detection, show…

p Last month a customer rang our service line to dispute a charge for a Saturday delivery. Her AI assistant had told her Saturday delivery was free. It had been, until we changed our prices in 2023. The assistant had found an old page of frequently asked questions that we had never taken off our website, and summarised it accurately. /p p She was not the first. When our agents started…

p In May 2021, an executive order on cybersecurity in the United States set out that software sold to the federal government should be able to come with a software bill of materials. Two months later the government published the minimum elements such a list should contain. The idea is simple. A machine readable inventory of every component inside a piece of software, with names, versions and…

p em Originally published at a href="https://soluqube.com/blog/principal-vs-agent-asc-606-gross-vs-net-worked-example" rel="noopener noreferrer" soluqube.com /a . /em /p blockquote p Under ASC 606-10-55-36 to 55-40, an entity is a principal if it controls the specified good or service before it is transferred to the customer, and reports revenue gross. If its promise is only to arrange…

p Disclosure: this AI-assisted tutorial was prepared for Wagglet-related marketing. The handoff below is an illustrative engineering workflow, not a customer case study. /p p A useful AI task handoff for teams should work when one developer uses a terminal agent and another uses an editor assistant. The transferable part is the task contract: inputs, allowed changes, required evidence, and a…

p A week ago OpenPilot, the open-source desktop agent I built because I wanted a Cursor-style tool that runs on my own model, had 1 GitHub star. I launched it on Product Hunt on October 9 and wrote a couple of posts here. This is a short, honest look at what actually happened, mostly so I remember it and partly in case it's useful to someone else launching a small project alone. /p h2…

p em Why asking an agent to “find bugs” never ends, and a simple stop rule that works for human and AI reviews /em /p p On October 11, a developer posted a complaint that a lot of us recognized right away: /p blockquote p “Asking Claude to review your code is a slot machine. Every review finds brand new bugs. Review again: more. Review a tenth time: it still finds something. It never…

p At ten to eleven on a Tuesday night in July we had a fix for a broken refund screen, reviewed and built, and our deploy job could not install it. Every attempt failed within a second with UPGRADE FAILED: another operation (install/upgrade/rollback) is in progress. Nothing was in progress, and nothing had been for six hours. /p p Helm 3 keeps the history of each release as Secrets in the…

p Modern distributed systems lean on webhooks to drive event-driven workflows, sync data between SaaS platforms, trigger deployments, and process billing events. The traditional design routes webhook traffic from providers such as Stripe, GitHub, or Shopify straight into a centralized Kubernetes cluster or cloud region. That design has real security and capacity drawbacks. /p p A public…

p Apple has officially unveiled the Apple HomeView, a $299 dedicated smart home command center that bridges ambient home automation with on-device Apple Intelligence. Representing Apple's most consequential hardware category launch of late 2026, HomeView combines custom A18 silicon, an edge-to-edge 7-inch square Liquid Retina display, and an iMac G4-inspired domed acoustic base. Pre-orders are…

p A Vercel app can accept a file upload and store the object in Amazon S3 without putting a long-lived AWS access key in source code or deployment variables. Vercel’s Amazon S3 Marketplace integration now connects an S3 resource to a Vercel project, supplies connection details as environment variables, and authenticates with short-lived OIDC credentials. The practical work remains yours:…

p I wanted to see whether an AI assistant could keep up with a fast-moving corner of cancer research instead of answering from whatever it saw during training. So I picked one narrow question: strong how do KRAS G12C lung and colorectal tumours become resistant to sotorasib and adagrasib? /strong Then I built a PubMed connector for a href="https://github.com/topoteretes/cognee" rel="noopener…

p I told a model to think less, and it started thinking. /p p That's the whole bug. But how I got there is worth writing down, because anyone putting one endpoint in front of several model families will probably hit some version of it. /p p The setup: I build a desktop app that can talk to a model three ways. A local model through Ollama, the user's own API key, or cloud credits that go…

p em Disclosure: I work on EarDub, a browser extension that dubs videos into other languages. This post is about a design problem we hit, not a product pitch, but the product comes up at the end. /em /p p If you've tried a "real-time" video translator that listens to a video and speaks a translation, you've probably noticed the voice runs about one sentence behind the speaker. The person on…

p The Lovable apps in the most trouble were the ones that looked fine. I went through 264 public reports of Lovable apps breaking, from Reddit, Trustpilot, GitHub and Hacker News, and sorted each one by what caused it. The biggest groups were logins and database connections (37), Lovable itself being down (33), and apps that couldn't be found on Google (32). Right behind them were 31 reports…

p Short answer: send each welcome message once, poll delivery events outside the signup request, and turn every permanent bounce or complaint into a suppression decision before another send can be queued. For fintech onboarding, retain the event, the decision, and the message correlation ID as separate evidence. A dashboard saying "bounced" helps operations; it is weak evidence by itself. /p p…

p A tip circulating in Chinese AI developer communities right now claims that running a code /claude-api prompt-audit /code command in Claude Code will audit your skills, your CLAUDE.md, and your prompts, strip out everything "blocking the model," and rewrite everything according to an "official Opus 5.5 guide" -- all in five minutes. The post attributes this to an Anthropic engineer and frames…

p Your support bot is fine until OpenAI returns 429s for twenty minutes. /p p If the app called code openai.OpenAI() /code with a single model string, those twenty minutes are an outage. Not because the product broke — because you married one vendor in the client code. /p p strong LiteLLM /strong gives you one OpenAI-compatible interface over 100+ providers, plus a strong Router…