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Hey HN! Like most here regular meetings have always been a big part of my work.

Over the years I've learned the value of active note taking in these meetings. Meaning: not minutes, not transcriptions or AI summaries, but me using my brain to actively pull out the key points in short form bullet-like notes, as the meeting is going on, as I'm talking and listening (and probably typing with one hand). This could be agenda points to cover, any interesting sidebars raised, insights gotten to in a discussion, actions agreed to (and a way to track whether they got done next time!).

It's both useful just to track what's going on in all these different meetings week to week (at one point I was doing about a dozen 1-1s per week, and it just becomes impossible to hold it in RAM) but also really valuable over time when you can look back and see the full history of a particular meeting, what was discussed when, how themes and structure are changing, is the meetings effective, etc.

Anyway, I've tried a bunch of different tools for taking these notes over the years. All the obvious ones you've probably used too. And I've always just been not quite satisfied with the experience. They work, obviously (it's just text based notes at the end of the day) but nothing is first-class for this usecase.

So, I decided to build the tool I've always felt I want to use, specifically for regular 1-1s and other types of regular meetings. I've been using it myself and with friends for a while already now, and I think it's got to that point where I actually prefer to reach for it over other general purpose note taking tools now, and I want to share it more widely.

There's a free tier so you can use it right away, in fact without even signing up.

If you've also been wanting a better system to manage your notes for regular meetings, give it a go and let me know what you think!

fanfa.dev is a website that provides free and open-source tools and resources for web development, including a code editor, task runner, and package manager. The site aims to simplify the development workflow and empower developers with a user-friendly platform.

hey HN!

Roni from India — ex-Google Summer of Code(GSoC) @ internet archive, full-stack dev.

got frustrated watching json bloat my openai/claude bills by 50%+ on redundant syntax, so i built ZON over a few weekends: zero-overhead notation that compresses payloads ~50% vs json (692 tokens vs 1,300 on gpt-5-nano benchmarks) while staying 100% human-readable and lossless.

Playground -> https://zonformat.org/playground ROI calculator -> https://zonformat.org/savings

<2kb typescript lib with 100% test coverage. drop-in for openai sdk, langchain js/ts, claude, llama.cpp, streaming, zod schemas—validates llm outputs at runtime with zero extra cost.

Benchmarks -> https://zonformat.org/#benchmarks

try it: npm i zon-format or uv add zon-format, then encode/decode in <10s (code in readme). full site with benchmarks: https://zonformat.org

github → https://github.com/ZON-Format

harsh feedback on perf, edge cases, or api very welcome. if it saves you a coffee's worth of tokens, a star would be awesome

let's make llm prompts efficient again

Hello Everyone! We built SQLFlow as a lightweight stream processing engine.

We leverage DuckDB as the stream processing engine, which gives SQLFlow the ability to process 10's of thousands of messages a second using ~250MiB of memory!

DuckDB also supports a rich ecosystem of sinks and connectors!

https://sql-flow.com/docs/category/tutorials/

https://github.com/turbolytics/sql-flow

We were tired of running JVM's for simple stream processing, and also of bespoke one off stream processors

I would love your feedback, criticisms and/or experiences!

Thank you

Octopii is a Rust-based framework that aims to simplify the deployment and management of containerized applications. It provides a declarative configuration model, automated infrastructure provisioning, and integration with popular container orchestration platforms like Kubernetes.

Hi!

I got tired of setting up tools I can't explain to a team in a few words like sops or git-crypt, just to store few files with environment variables or secrets, so I built lockenv as a simple alternative.

It's basically a password-protected vault file you commit to git. No gpg keys, no cloud, just lockenv init, set a password, and lock/unlock the secrets.

This tool integrates with OS keyring, so you're not typing passwords constantly. Should work on Mac/Linux/Windows, but I tested it only on linux so far.

I am not trying to replace any mature / robust solution, just making small tool for simple cases, where I want to stop sharing secrets via slack.

Feel free to try, thank you!

I'm sick of things like greenlight that charge a high fee when all my young kids really need is a basic ledger to intro the ideas. Would love feedback.

Excuse the vibes - I haven't styled yet.

Hi HN! I've been building ReadyKit, an open-source SaaS boilerplate that handles all the hard parts: multi-tenant workspaces, Stripe billing, OAuth + MFA authentication, and a production-ready stack.

Built with Python/Flask, PostgreSQL, Redis, and Vue 3, it's designed for indie makers and teams who want to ship SaaS products fast. Clone, configure your OAuth and Stripe keys, and you're running in 5 minutes.

Features include automatic query scoping for workspace isolation, audit logs, role-based access, and a modern UX kit. MIT licensed and free forever.

GitHub: https://github.com/level09/readykit

Diesel-Guard is a tool that helps detect and prevent diesel engine tampering, allowing fleet managers to monitor engine performance and emissions compliance through real-time data analysis and notifications.

I'm Clive, a developer from South Africa. Four days ago, Eduardo Borges posted about getting hacked through CVE-2025-55182 (the React Server Components RCE). His server was patched, but the malware stayed, crypto miners, fake services named "nginxs" and "apaches", cron jobs for persistence. CPU at 361%. Part of a 415-server botnet.

That's when I realized: patching removes the vulnerability, but not the infection.

I built NeuroLint originally as a deterministic code transformation tool for React/Next.js (no AI, just AST-based fixes). When this CVE dropped, I added Layer 8: Security Forensics.

It scans for 80+ indicators of compromise: - Suspicious processes (high CPU, random names, fake services) - Malicious files in /tmp, modified system binaries - Persistence mechanisms (cron jobs, systemd services, SSH keys) - Network activity (mining pools, C2 servers) - Docker containers running as root with unauthorized changes - Crypto mining configs (c.json, wallet addresses)

Try it: npm install -g @neurolint/cli neurolint security:scan-breach . --deep

No signup required. Works on Linux/Mac. Takes ~5 minutes for a deep scan.

What's different from manual detection: - AST-based code analysis (detects obfuscated patterns) - 80+ behavioral signatures vs. 5-10 manual grep commands - Automated remediation (--fix flag) - Timeline reconstruction showing when breach occurred - Infrastructure-wide scanning (--cidr flag for networks)

The tool is deterministic (not AI). Same input = same output every time. Uses Babel parser for AST transformation with fail-safe validation - if a transformation fails syntax checks, it reverts.

Built it in 3 days based on Eduardo's forensics and other documented breaches. Already found dormant miners in test environments.

GitHub: https://github.com/Alcatecablee/Neurolint-CLI NPM: https://www.npmjs.com/package/@neurolint/cli

If you were running React 19 or Next.js 15-16 between Dec 3-7, run the scanner even if you already patched. Especially if you already patched.

Happy to answer questions about the detection logic, AST parsing approach, or the CVE itself.

A small tool that parses C declarations and outputs a simple visual representation at each stage, as it encounters arrays, pointers or functions.

The program uses a table-driven lexer and a hand-written, shift-reduce parser. No external dependencies apart from the standard library.

I built a small weekend project to help track RAM prices, since DDR3/DDR4/DDR5 costs have suddenly jumped recently and I was struggling to find good deals for my NAS build.

RamScout scans eBay (UK/US) and ranks RAM listings by price per GB, with filters for type, capacity, speed, condition, etc. It’s a simple MVP — no frills, no accounts, no ads — just a fast way to spot unusually cheap listings.

Would appreciate any feedback, especially on performance, UI, and whether expanding to more regions/vendors would be useful. Thanks!

The article discusses strategies for maintaining a high-quality codebase, including embracing refactoring, prioritizing technical debt, and fostering a culture of continuous improvement. It emphasizes the importance of balancing feature delivery with sustainable code practices to ensure the long-term health and success of a software project.

LeetcodeWrapped is a web application that allows users to analyze their LeetCode problem-solving history, including statistics on the problems they've solved, the languages they've used, and their performance over time.

Hey HN! I'm open-sourcing DataKit today.

GitHub: https://github.com/datakitpage/datakit Live demo: https://datakit.page

DataKit is a browser-based data analysis platform that processes multi-gigabyte files (CSV, Parquet, JSON, Excel) entirely client-side using DuckDB-WASM. Your data never leaves your browser.

What it does: • Process large files (tested up to 20GB) without any server • Full SQL interface powered by DuckDB compiled to WebAssembly • Python notebooks via Pyodide for data science workflows • Connect to remote sources (PostgreSQL, MotherDuck, S3) with optional proxy • AI assistant that only sees column schemas, not actual data

I was done with having to choose between cloud tools and heavy local installations. I wanted something that just works in a browser tab but has real power.

It's AGPL licensed with commercial licenses available for enterprises.

I've been building this solo as a side project for the past few months. Would love your feedback on: - Performance bottlenecks you encounter - Features you'd need for your workflows - The architecture decisions (all client-side vs hybrid)

I had an issue where I would journal stuff, and then never look at what I wrote. So I thought it'll be cool to schedule something that will get sent to you at a later time (like a time capsule). Also, was inspired by futureme, where you can send yourself letters that'll arrive in the future.

Hi HN,

Edge.mq makes it very easy to ship data from the edge to S3.

EdgeMQ is a managed HTTP to S3 edge ingest layer that takes events from services, devices, and partners on the public internet and lands them durably in your S3 bucket, ready for tools like Snowflake, Databricks, ClickHouse, DuckDB, and feature pipelines.

Design focus on simplicity, performance and security.

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!

This article discusses the development of a C++ library for parallel vector-accumulation (PVAC) and Helmholtz free energy (HFE) calculations, which are important in molecular dynamics simulations. The library provides optimized, high-performance implementations of these algorithms for efficient scientific computing.

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.

`cargo install tascli`

Manages your own task and records in the terminal simply with tascli - tiny, fast and simple.

Hi everyone, I built FuseCells, a minimalistic logic puzzle game where every level is handcrafted (no procedural generation). It started as a personal challenge to design a clean rule-set and scale it to thousands of puzzles without losing difficulty balance.

What’s unique: • 2,500 handcrafted levels across multiple grid sizes • Deterministic logic — no guessing required • A rule system inspired by constraint-solving and path-finding concepts • Daily challenges and global progress tracking • Fully built as a solo dev project

Technical notes for those curious: • Level generation tools I wrote validate solvability using a custom constraint solver • Difficulty is estimated via step-count of the solver • The game is optimized to run smoothly on low-end devices • Designed first for iOS, now fully adapted for iPad as well

I’d love feedback from puzzle lovers, game designers, and anyone interested in handcrafted logic design. Here’s the App Store link: [inserați linkul]

Thanks for reading — happy to answer any technical questions!

The article provides strategies and techniques for effectively debugging TypeScript applications, including using the TypeScript compiler, leveraging IDE tools, and employing logging and debugging libraries to identify and resolve issues in TypeScript-based projects.

LinkedQL is a new SQL client that supports live queries over any Postgres, MySQL, and MariaDB database. You get result sets that self-update differentially as rows change in your database – via inserts, updates, deletes. Works with no extra tooling/ORM layer or GraphQL servers. You opt into live mode simply with a flag: client.query('SELECT ...', { live: true }). More at: https://linked-ql.netlify.app/capabilities/live-queries

LinkedQL is written in JavaScript and runs in both client and server environments.

GitHub + docs: https://github.com/linked-db/linked-ql

Demo examples included.

I’d love feedback: • Anything confusing? • Anything seems useful or dangerous? • Anything else that'd make you consider LinkedQL for production?

Thanks for taking a look — happy to answer any questions.

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.

Hi HN!

I built an open source macOS app that allows you to unlock your SSH and GPG key passphrases with Touch ID. You can also store secrets and inject them into your dev environment using the CLI, and store `age` encryption keys in the Secure Enclave.

I started working on this because I was setting up a new computer, and I didn't like how janky the Mac GPG pinentry tool felt.

Secrets management came later because I also wanted an alternative to 1Password's secrets injection, which only works while online for some reason. This allows me to store `axo://...` URLs in my config files, which get dynamically populated with `ap inject`. The vault spec is inspired by SOPs.

The reason this is an app and not just a CLI tool is because it integrates directly with Apple's Security framework and needs to be codesigned and notarized - an interesting (annoying) problem I should write about

Looking to the future, I'm planning to add support for syncing secret vaults with git, SOPs-backed vaults, syncing public keys to Github, GPG key management (I keep forgetting how to renew my keys), and maybe even implement the ssh-agent protocol so I can store my SSH keys in the app. It's a long list but it will solve many paper cuts of mine.

Would love some early feedback, happy to answer any questions.

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.