Duck (<a href="https:&#x2F;&#x2F;duck-lang.dev" rel="nofollow">https:&#x2F;&#x2F;duck-lang.dev</a>) is a statically typed, compiled programming language that combines the best of Rust, TypeScript and Go, aiming to provide an alternative for full-stack-development while being as familiar as possibleImprovements over Rust:
- garbage collection simplifies developing network applications
- no lifetimes
- built-in concurrency runtime and apis for web developmentImprovements over bun&#x2F;node&#x2F;typescript:
- massive performance gains due to Go&#x27;s support for parallel execution and native code generation
- easier deployment since Duck compiles to a statically linked native executable that doesn&#x27;t need dependencies
- reduced complexity and costs since a single duck deployment massively outscales anything that runs javascript
- streamlined toolchain management using duckup (compiler version manager) and dargo (build tool)Improvements over Go:
- a more expresive type system supporting Union types, Duck typing and tighter control over mutability
- Server Side Rendering with a jsx-like syntax as well as preact components for frontend development
- better error handling based on union types
- a rust based reimplementation of tailwind that is directly integrated with the language (but optional to use)
- type-safe json apis

Show HN: Ducklang: Achieving 100x more requests per second than NextJS

Show HN: Previewcn – a Shadcn/UI theme previewer directly inside your NextJS app

Umami affected by NextJS CVE-2025-66478

Headless blog using SleekCMS, NextJS and Vercel

Building with NextJS (When You'd Rather Use Svelte)

I built a milestone-based B2B escrow system using Stripe Connect(Laravel+NextJS)

Show HN: React and NextJS lessons and exercises embedded in VSCode / Cursor

I moved my website from NextJS to Phoenix

A quick blog template built using NextJS and SleekCMS

See also: <a href="https:&#x2F;&#x2F;blog.cloudflare.com&#x2F;react2shell-rsc-vulnerabilities-exploitation-threat-brief&#x2F;" rel="nofollow">https:&#x2F;&#x2F;blog.cloudflare.com&#x2F;react2shell-rsc-vulnerabilities-...</a>, <a href="https:&#x2F;&#x2F;nextjs.org&#x2F;blog&#x2F;security-update-2025-12-11" rel="nofollow">https:&#x2F;&#x2F;nextjs.org&#x2F;blog&#x2F;security-update-2025-12-11</a>

Denial of service and source code exposure in React Server Components

Hey all!Long time lurker, thought I would contribute back something to the community (at least the meat eaters in the UK). One thing that&#x27;s been a pain for me to get a good understanding of is what the best price is for online butchers based around the UK. I like high quality meat (including some of the bigger cuts for kamado&#x2F;bbq), and I&#x27;m willing to pay a premium however there isn&#x27;t a single resource that would let me get an overview of what&#x27;s available and price movements over time.For my Xmas meat I didn&#x27;t want to start building out a spreadsheet so I built a price tracker with quite a few convenience features to make it easy to search for certain cuts of meat across commonly mentioned butchers on Reddit and other communities.If you find it useful let me know if there are any features that could help to make it even easier to find the cuts of meat that you&#x27;re looking for!Here&#x27;s the tracker: <a href="https:&#x2F;&#x2F;offer-spider.onrender.com" rel="nofollow">https:&#x2F;&#x2F;offer-spider.onrender.com</a>Hosted on Render, built with Nextjs and SQLite. Spidering various custom e-com sites (WooCommerce, Shopify) on a daily basis.My current TODOs:
- Search is currently free-text OR. Add AND to allow focussing down a search, and select from facets&#x2F;categories&#x2F;taxonomy
- Common search terms to pre-fill
- Exposing price over time metrics
- Further consolidation of SKUs to an internal taxonomy
- More butchers
- Expanding to other use cases outside of meat!

Show HN: UK Butchers Meat Price Tracker

I class myself as a product engineer and have worked with React, NextJS, PostgreSQL, PHP, Typescript etc.I am tired of using linkedin to find a new job.
I am looking for more smaller companies with remote work.Anyone know some sources to search?

Ask HN: Where to find cool companies to work for?

I forked Chromium and went through the plumbing to embed a ReactJS&#x2F;NextJS web app in its Side Panel like OpenAI&#x27;s Atlas browser and Perplexity&#x27;s Comet browser.The Side Panel has access to the browser&#x27;s DOM which you can pass as context to LLMs in your web app. Supports hot reloading for faster development.Hopefully this is helpful for web devs who haven&#x27;t, or don&#x27;t want to, touch C++ and Chromium, but want to build a native AI experience into browsers.

Show HN: Build your own Atlas/Comet AI-browser (open source)

Through taking the excellent CSE 507 class at UW (Solver Aided Programming) I learned about Rosette, a Racket-based programming system that interfaces with SAT&#x2F;SMT solvers.I applied Rosette to the problem of generating autogramic pangrams, aka self-enumerating pangrams: sentences that contain every letter of the alphabet AND describe themselves.The front end (NextJS&#x2F;Vercel) passes constraints to a Dockerized Rosette program hosted on Cloud Run.Feedback and comments welcome! And Happy New Year!

Show HN: Generating self-enumerating pangrams with constraint solving on the Web

Title says it all. Any ideas welcome. I know Next JS, Typescript and Python.

Ask HN: I'm bored, what should I build

Small open-source React component I made after getting tired of empty avatar placeholders in my apps &#x2F; SaaS.It generates a consistent avatar from a name and works well as a fallback when users don’t upload photos. No API calls.It comes with a NextJS helper to generate the same avatar as PNG and use them in your emails &#x2F; mobile apps.

Show HN: A tiny React lib for avatar fallbacks

Hi, I&#x27;m posting Daily Done, a web app for sharing project updates with clients - <a href="https:&#x2F;&#x2F;dailydone.work" rel="nofollow">https:&#x2F;&#x2F;dailydone.work</a>.Give it a try, it&#x27;s completely free right now.Concept - make it easy to share updates, and let clients see them without any friction (no signup required for clients). Clients can also react with emoji and comment.Goals - my day job is making web apps, but I&#x27;ve never shipped a product on my own. With this I wanted to create something that I could actually build, ship, and support end-to-end. So it is pretty simple (maybe too simple?).Tech stack
- NextJS... don&#x27;t hate me. Next has an annoying amount of magic, but I really like using it. Let&#x27;s me use React to generate plain HTML, and sprinkle in client-side JS for interactive bits.
- Sqlite &#x2F; Turso. Local dev without needing docker is really nice.
- WorkOS authkit, instead of rolling my own auth.
- Polar for billing, although billing isn&#x27;t currently active.Challenges
- The classic problem of getting people to try it out.
- Building something completely end-to-end was new for me. For example, setting up the webhooks and coordinating auth and billing isn&#x27;t hard, but took a bit of thought.
- I can&#x27;t design.Learnings
- Maybe don&#x27;t even build in billing, or possibly even auth, until people are trying it out.

Show HN: Share Project Updates with Clients

I'm bored, what should I build?

Hi HN!I created an ESP32 driven weather display for pilots that looks like a cockpit instrument. The goal was to move METAR off the phone screen and onto the desk where it is always visible. It’s a dedicated, &quot;always-on&quot; desk accessory that fetches real-time aviation weather and renders it onto a high-contrast e-paper display. It also has a quiz mode to help student pilots learn and test METAR decoding.Jumpseaters: Adding Personality to the Data
Raw METARs can be dry, so I implemented a feature called Jumpseaters. These are selectable personality profiles that transform the device into an opinionated flight crew.Instead of just seeing &quot;OVC001,&quot; you might get a report from Downwind Donnie, who sarcastically judges your &quot;personal minimums,&quot; or Checkride Charlie, a virtual DPE who delivers weather updates with the uncomfortable silence. It was a fun to map these &quot;personalities&quot; to specific weather triggers in the firmware.----The Technical DetailsController: ESP32-S3. I chose this for the native USB support and the power efficiency needed for long-term deep sleep.Display: 4.2&quot; E-Paper. It uses an open-source library <a href="https:&#x2F;&#x2F;github.com&#x2F;martinberlin&#x2F;CalEPD" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;martinberlin&#x2F;CalEPD</a>Power: Deep sleep cycles keep the current draw low, allowing it to run for weeks on a small LiPo. I am continuing to optimize the power usage because I feel I can get it to last many months even after the daily screen refreshes.Tech Stack: ESP-IDF&#x2F;C++ for the microcontroller. Flutter&#x2F;Dart for the iOS&#x2F;Android mobile apps. Nextjs for the website and API.---I have learned a lot about hardware devices during this process. It has been fun programming for the E-paper display. It has it&#x27;s own unique challenges because of the nature of the technology (seconds for each refresh vs. refreshes&#x2F;second for traditional screens). I really enjoy when it refreshes.The Kickstarter is live and 38% funded with 15-days to go. One thing I wish I had done a lot more of is prelaunch marketing. Ads now have had good conversion driving to the Kickstarter page, but the volume takes time.On the same prelaunch theme, the other major lesson learned is that I wish I had asked for more feedback publicly (I do have early testers, but all local) and shared more before working on the Kickstarter. Once you say Kickstarter, all the mods put it in the commercial category and don&#x27;t allow posting ANYTHING related to it.Check it out at <a href="https:&#x2F;&#x2F;papermetar.com" rel="nofollow">https:&#x2F;&#x2F;papermetar.com</a> or <a href="https:&#x2F;&#x2F;www.kickstarter.com&#x2F;projects&#x2F;charlie29r&#x2F;papermetar" rel="nofollow">https:&#x2F;&#x2F;www.kickstarter.com&#x2F;projects&#x2F;charlie29r&#x2F;papermetar</a>

Show HN: PaperMETAR – An E-Paper Aviation Weather Display for Pilots

so we&#x27;re closing the year , and in 2025 one thing i got tired of was constantly getting feedback from people say &quot;this is not working on the site&quot; and i didnt want to go through all that &quot;sentry&quot; stress , yeah i know sentry isnt difficult to setup , but the dashboard kinda looked too overwhelming and &quot;enterpriseyy&quot; so i built gmail for bugs (basically you see your errors as emails in an inbox) and it takes 4 lines of code to get startedbut the interesting part is , ive been able to create the nextjs SDK , and React and nodejs , so i&#x27;d recommend the full sdk setup , but the script tag is just a simple way to get started

Show HN: Made a simple way to catch production errors with 4 lines of code

# This is a NextJS
NextJS is a **framework for ReactJS**.

Wait a second ... a "framework" for React? Isn't React itself already a framework for JavaScript?

Well ... first of all, React is a "library" for JavaScript. That seems to be important for some people.

Not for me, but still, there is a valid point: React already is a framework / library for JavaScript. So it's already an extra layer on top of JS.

## Getting Started

Create Next App:

```bash
npx create-next-app
# or
yarn create next-app
```

First, run the development server:

```bash
npm run dev
# or
yarn dev
```

Open [http://localhost:3000](http://localhost:3000) with your browser to see the result.

You can start editing the page by modifying `pages/index.js`. The page auto-updates as you edit the file.

[API routes](https://nextjs.org/docs/api-routes/introduction) can be accessed on [http://localhost:3000/api/hello](http://localhost:3000/api/hello). This endpoint can be edited in `pages/api/hello.js`.

The `pages/api` directory is mapped to `/api/*`. Files in this directory are treated as [API routes](https://nextjs.org/docs/api-routes/introduction) instead of React pages.

## Why would we then need NextJS?

Because NextJS makes building React apps easier - especially React apps that should have server-side rendering (though it does way more than just take care of that).

In this article, we'll dive into the core concepts and features NextJS has to offer:

- File-based Routing
- Built-in Page Pre-rendering
- Rich Data Fetching Capabilities
- Image Optimization
- Much More

## File-based Routing

![Create routes via your file + folder structure](nextjs-file-based-routing.png)

# File-based Routing In Action

![Create routes via your file + folder structure](nextjs-file-based-routing-in-action.png)

## Learn More

To learn more about Next.js, take a look at the following resources:

- [Next.js Documentation](https://nextjs.org/docs) - learn about Next.js features and API.
- [Learn Next.js](https://nextjs.org/learn) - an interactive Next.js tutorial.

You can check out [the Next.js GitHub repository](https://github.com/vercel/next.js/) - your feedback and contributions are welcome!

## Deploy on Vercel

The easiest way to deploy your Next.js app is to use the [Vercel Platform](https://vercel.com/new?utm_medium=default-template&filter=next.js&utm_source=create-next-app&utm_campaign=create-next-app-readme) from the creators of Next.js.

Check out our [Next.js deployment documentation](https://nextjs.org/docs/deployment) for more details.

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