Show stories

SerpAPI MCP (Matched Content Provider) is a Python library that allows developers to fetch and parse SERP (Search Engine Results Page) data from various search engines, including Google, Bing, Yahoo, and Baidu. It provides a simple and efficient way to access and analyze search engine data programmatically.

I'm sure folks here have seen pastebins a thousand times. There's no innovation left in this space – and that's kind of the point.

When I wanted to self-host a pastebin, every option I found was too much. Git-based version control, OAuth, elaborate admin panels. I just wanted something I could deploy in under a minute with a CLI that actually works.

So I built pbnj (yes, like the sandwich).

What it is:

- A minimal, beautiful pastebin with syntax highlighting for 100+ languages

- One-click deploy to Cloudflare (free tier gives you ~100,000 pastes)

- CLI-first: pbnj file.py → get a URL, copied to clipboard

- Memorable URLs: crunchy-peanut-butter-sandwich instead of x7f9a2

- Private pastes with optional secret keys

- Web UI for when you're not in a terminal

What it isn't:

- No accounts, no OAuth, no git integration

- No multi-user support (fork it and run your own)

- No expiring pastes, no folders, no comments

- Not trying to replace Gist or be a "platform"

Why not just use Gist? Maybe you want to own your data. Maybe you enjoy self-hosting things. Or maybe you're a little autistic like me and just like having your own stuff.

Live demo: https://pbnj.sh GitHub: https://github.com/bhavnicksm/pbnj CLI: npm install -g @pbnjs/cli

If this scratches an itch for you, I'd appreciate a star on GitHub. Happy to answer any questions!

Hello HN! We're a team of three building a new kind of web-based markdown editor.

There are many editors out there, so one is spoiled for choice, but Kraa's approach is a little different. It's trying to be both a minimal and distraction-free experience while being feature-rich and allowing for tons of use cases.

What Kraa's good for:

- Distraction-free writing & reading (minimal UI, performant, styling logic completely separated from the editing experience)

- Quick sharing of any written text – compared to many other writing tools, your content can be easily shared just by posting a link and giving 'read' or 'edit' access (we also have password-protection)

- Real-time chat / communities – Kraa has some unique features around real-time editing and our Chat widget allows for a frictionless chat experience. No send button.

- Kraa works well on mobile (though dedicated apps are planned)

---

Demo examples (all live, no login needed):

Blog article: https://kraa.io/kraa/examples/echolibrary

Long-form story: https://kraa.io/kraa/examples/insidekick

Magazine: https://kraa.io/weeklyinspiration

Kraa is built on top of ProseMirror (and TipTap) and Svelte.

You don’t need an account to try Kraa. We’d really appreciate your thoughts and feedback!

The article recounts the author's reintroduction to computers through the Raspberry Pi, a small, affordable, and versatile single-board computer. It highlights the author's enthusiasm for exploring the capabilities of the Raspberry Pi and its potential for various applications.

Hi HN,

I'm Rosa, a massage therapist for over 30 years. I noticed my clients felt relaxed after a massage, but their stress and muscle tension always came back. A one-hour massage isn't always enough to combat a long workweek.

I saw that people needed info on how to take care of their bodies between appointments, not just treatment.

That's why we built MASSAGE BY ROSA – a wellness platform to meet this need.

Here’s what we offer:

It’s a two-part deal:

-Massage Therapy: Hands-on therapy for pain relief – based on methods from South Florida.

-Online Body Therapy Courses: This is what I want to share. I turned my knowledge into video courses teaching self-massage, workstation adjustments, and ways to release tension. It’s like having a therapist help you stay well.

The Tech:

We’re keeping it basic with a static site for course content and subscriptions, which lets us focus on making great video lessons.

We're launching this to solve the problem of upkeep in physical wellness. It's for people who sit a lot and want lasting relief without constant professional help.

Check it out and tell me what you think:

Landing Page: https://massagebyrosa.com

I’m here to answer any questions about the platform, the methods, or how the business runs!

This article presents a traditional Turkish pasta recipe that combines fresh vegetables, spices, and a unique cooking technique to create a flavorful and satisfying dish. The recipe highlights the versatility of pasta in Turkish cuisine and provides an easy-to-follow guide for home cooks to recreate this authentic cultural dish.

The article discusses the launch of a new random app that generates random content for users, including images, text, and other media. The app aims to provide a fun and engaging platform for users to explore and discover new and unexpected content.

The article discusses the Walrus programming language, which is a statically-typed, object-oriented language that aims to provide a powerful and expressive alternative to languages like Python and Rust. Walrus is designed to be efficient, scalable, and easy to use, with a focus on simplicity and developer productivity.

The article introduces mtxt, an open-source, cross-platform text editor designed for technical and programming-related tasks. It highlights mtxt's features, such as support for multiple programming languages, syntax highlighting, and built-in terminal emulator, making it a versatile tool for developers and writers.

When I bought my home, the big bank I'd been using for years quoted me 7% APR. A local credit union was offering 5.5% for the exact same mortgage.

I was surprised until I learned that mortgages are basically standardized products – the government buys almost all of them (see Bits About Money: https://www.bitsaboutmoney.com/archive/mortgages-are-a-manuf...). So what's the price difference paying for? A recent Bloomberg Odd Lots episode makes the case that it's largely advertising and marketing (https://www.bloomberg.com/news/audio/2025-11-28/odd-lots-thi...). Credit unions are non-profits without big marketing budgets, so they can pass those savings on, but a lot of people don't know about them.

I built this dashboard to make it easier to shop around. I pull public rates from 120+ credit union websites and compares against the weekly FRED national benchmark.

Features:

- Filter by loan type (30Y/15Y/etc.), eligibility (the hardest part tbh), and rate type - Payment calculator with refi mode (CUs can be a bit slower than big lenders, but that makes them great for refi) - Links to each CU's rates page and eligibility requirements - Toggle to show/hide statistical outliers

At the time of writing, the average CU rate is 5.91% vs. 6.23% national average. about $37k difference in total interest on a $500k loan. I actually used seaborn to visualize the rate spread against the four big banks: https://www.reddit.com/r/dataisbeautiful/comments/1pcj9t7/oc...

Stack: Python for the data/backend, Svelte/SvelteKit for the frontend. No signup, no ads, no referral fees.

Happy to answer questions about the methodology or add CUs people suggest.

I built Fresh to challenge the status quo that terminal editing must require a steep learning curve or endless configuration. My goal was to create a fast, resource-efficient TUI editor with the usability and features of a modern GUI editor (like a command palette, mouse support, and LSP integration).

Core Philosophy:

- Ease-of-Use: Fundamentally non-modal. Prioritizes standard keybindings and a minimal learning curve.

- Efficiency: Uses a lazy-loading piece tree to avoid loading huge files into RAM - reads only what's needed for user interactions. Coded in Rust.

- Extensibility: Uses TypeScript (via Deno) for plugins, making it accessible to a large developer base.

The Performance Challenge:

I focused on resource consumption and speed with large file support as a core feature. I did a quick benchmark loading a 2GB log file with ANSI color codes. Here is the comparison against other popular editors:

  - Fresh:   Load Time: *~600ms*     | Memory: *~36 MB*
  - Neovim:  Load Time: ~6.5 seconds | Memory: ~2 GB
  - Emacs:   Load Time: ~10 seconds  | Memory: ~2 GB
  - VS Code: Load Time: ~20 seconds  | Memory: OOM Killed (~4.3 GB available)

Development process:

I embraced Claude Code and made an effort to get good mileage out of it. I gave it strong specific directions, especially in architecture / code structure / UX-sensitive areas. It required constant supervision and re-alignment, especially in the performance critical areas. Added very extensive tests (compared to my normal standards) to keep it aligned as the code grows. Especially, focused on end-to-end testing where I could easily enforce a specific behavior or user flow.

Fresh is an open-source project (GPL-2) seeking early adopters. You're welcome to send feedback, feature requests, and bug reports.

Website: https://sinelaw.github.io/fresh/

GitHub Repository: https://github.com/sinelaw/fresh

Author here: I built this because I wanted to learn about CBOR and how it's build and how it encodes data. I work with it on a almost daily basis, its s binary format that is defined in the RFC8949 specification.

It was my first time using AI to formalize the rules from an RFC and turn them into testable, working code. That's why I also explicitly say that this tool is not currently in use for production (I'm sure it will contain bugs!), it's just like a tinkering tool for me and at one point I hope to make this into something that people can maybe even use in their production system.

For visualization, I built a hex viewer that shows how the CBOR is decoded. It's really helping me understand the format better.

Right now it's just a basic version—you can encode, decode, and diff two CBOR values. There's still a lot of work to do. I'd like to add more educational content about what CBOR actually is and offer more tools.

I work in the Cardano space where CBOR is used heavily, so one thing I want to add is a function that can recognize which Cardano era a transaction (or part of a transaction) comes from.

There is still a ton of work to do and I have more ideas in mind, but for now that's my first version and I would like to get some feedback :)

The CBOR parser for that project is already open sourced, and I also built a small test suite to validate my CBOR parser against test cases and see how I compare to different parsers. That's why I created two projects that make this app possible. They are both linked in the about page and they're called Nachos and Taco.

It all started as an experiment to see if I could build a game making heavy use of Deno and its SQLite driver. After sharing an early build in the „What are you working on?“ thread here, I got the encouragement I needed to polish it and make a version 1.0 for Steam.

So here it is, Microlandia, a SimCity Classic-inspired game with parameters from real-life datasets, statistics and research. It also introduces aspects that are conveniently hidden in other games (like homelessness), and my plan is to continue updating, expanding and perfecting the models for an indefinite amount of time.

VibeCommander is an open-source tool that allows users to control their computer's audio volume and other settings using their smartphone as a remote control. The tool aims to provide a convenient and intuitive way to manage audio and system settings from a mobile device.

The article provides a comprehensive guide to eSIM technology, explaining what eSIMs are, how they work, and their benefits over traditional SIM cards, such as easier device activation and the ability to switch carriers remotely.

Hi HN,

I built a tiny tool because I couldn’t find a clean, distraction-free monthly planner that:

1. shows a clean monthly task view 2. doesn’t require an account 3. doesn’t sync or store anything online 4. works offline 5. is printable 6. and keeps a minimal, distraction-free aesthetic

So I made https://printcalendar.top/ — a minimal monthly task planner.

It’s intentionally simple. No logins, no integrations, no dashboards. Just a small tool for people who want structure without clutter.

Hey there! I just finished a youtube video explaining our donut chess in detail: https://youtu.be/iRcfHCPFgkM

So I thought it'd be cool to show it off here too- it can be played around with at mchess.io/donut - you can also set up an AI or online game on the site.

This is all indie dev work from a couple friends and myself.

The article describes a project called 'mirror_bridge', which is a browser extension that allows users to view and interact with the content of a website directly on the mirror website. The extension aims to provide a seamless browsing experience and facilitate access to information across multiple websites.

Got tired of wiring up vector stores, embedding models, and chunking logic every time I needed RAG. So I built piragi.

  from piragi import Ragi

  kb = Ragi(\["./docs", "./code/\*\*/\*.py", "https://api.example.com/docs"\])

  answer = kb.ask("How do I deploy this?")

What it does:

  - All formats - PDF, Word, Excel, Markdown, code, URLs, images, audio

  - Auto-updates - watches sources, refreshes in background, zero query latency

  - Citations - every answer includes sources

  - Advanced retrieval - HyDE, hybrid search (BM25 + vector), cross-encoder reranking

  - Smart chunking - semantic, contextual, hierarchical strategies

  - OpenAI compatible - swap in GPT/Claude whenever you want

  # Filter by metadata
  answer = kb.filter(file_type="pdf").ask("What's in the contracts?")

  #Enable advanced retrieval

    kb = Ragi("./docs", config={
     "retrieval": {
        "use_hyde": True,
        "use_hybrid_search": True,
        "use_cross_encoder": True
     }
   })


  # Use OpenAI instead  
  kb = Ragi("./docs", config={"llm": {"model": "gpt-4o-mini", "api_key": "sk-..."}})

  pip install piragi
  PyPI: https://pypi.org/project/piragi/

Hi HN,

There are several tools that help you search through the monthly "Who is Hiring" posts on Hacker News. The primary difference with this one is it includes chat, semantic search as well as a semantic map visualization (select "business" from the dropdown and expand to get a sense of how this can be used). Behind the scenes it uses LLM instructions in batch to extract, format, tag the job posts, computes UMAP after everything settles while of course making everything searchable.

You can use the basic text search to quickly filter the results or alternatively use semantic search (toggle via the button in the search bar).

Finally, you can chat with the job postings as well (click the Chat button). It has a basic RAG type pipeline but also includes some tools which make it possible to ask broader questions like "What are the general themes in the job postings this month?" and dig down from there.

Anyway, I hope people find this useful. Any feedback is welcome (either here directly or feel free to use the contact page here https://nthesis.ai/contact which dog foods the same mechanism - no contact info required).

If you want to build something similar there is an API and a nice (in my opinion) CLI tool than can be used to ingest data, search or chat as well.

Marmot is an open-source data processing framework that provides a simple and efficient way to handle large-scale data processing tasks. It offers a powerful and flexible API for building data pipelines, with support for various data sources and scalable processing capabilities.

Zint is an open-source barcode generator library that supports a wide range of barcode symbologies, including 1D and 2D barcodes. It is designed to be used as a library in other applications and provides a simple API for generating barcodes.

The article describes a new open-source tool called Flooder, which enables users to simulate and analyze the impact of large-scale distributed denial-of-service (DDoS) attacks on network infrastructure. The tool can be used to evaluate the resilience of networks and develop mitigation strategies against such attacks.

Noeticmap is an online mapping platform that provides interactive and comprehensive maps for various regions around the world, offering users detailed information and analysis on topics such as demographics, infrastructure, and economic data.

A built a small WhatsApp bridge to keep track of claude code projects as they run on my laptop. There is an experimental permission hook to allow proxying of permission requests via the WhatsApp bridge. All messages are sent via a personal channel.