Show HN: Breathe CLI – Paced resonance breathing in the macOS terminal

86Box v6.0

The Website Specification

Evolving FSQ Open Source Places

A pictorial introduction to differential geometry (2017)

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I built a toy relational database in Go

Hey everyone, I’ve been building a small relational database in Go called fernDB. It supports a minimal subset of SQL for now, with basic parsing, planning, execution, transactions, indexes, simple statistics, and a cost-based optimizer. Its built on top of frostfire, a transactional key-value engine I built for the storage side of the database. Frostfire handles the lower-level KV storage and transactions, while fernDB is the relational layer on top. The whole thing started because I thou...

Show HN: Komi-learn – continuous memory and self-improvement for coding agents

Building a LangGraph pipeline for production data engineering

Ahoy, DECmate II the little PDP-8 that could

If Windows were designed today, would the Registry exist? [video]

A Gentle Introduction to Lattice-Based Cryptography [pdf]

Please Do Not Vibe Fuck Up This Software – Rsync

Mechanical Pencin: A website about the hidden engineering in everyday objects

My Accessibility Stack and the future on Wayland

Racket v9.2 is now available

Anyone can build a platform now. Almost nobody can get people to find it

AI grifters are creating fake Black people to sell Shein junk

The AV2 Video Standard Has Released (Final v1.0 Specification)

Christophe Pettus: All Your GUCs in a Row: config_file

PostgreSQL's `config_file` parameter creates a bootstrap paradox: it tells the server where to find its configuration, but lives on the command line only—never…

Looking for advice on how to contribute to growing open source database engines

Hi i am a career dev with around 5 years of experience across different transactional and data platform. Looking for advice on how to and where to start contributing on open source growing database engines. I have some understanding of database internals since I had to optimize applications for better perf both oltp and olap. I checked out the famous repos like clickhouse, pinot but there it seems most of the issues are already assigned, pr is ready or very old. submitted by /u/CalmCon...

Exotic prime numbers could be hiding inside black holes

LocalEmu, a free AWS emulator (fork of archived LocalStack)

ELF Linker Improvements in Zig

Shantell Sans

Microsoft degrades functionality of perpetually-licensed offline products

1M Ancient Greek fragments soon to be translated with the help of AI

Rotary GPU: Exploring Local Execution for Large MoE Models Under Limited VRAM

Cheese Paper: a text editor specifically designed for writing

AWS Budgets Has an 8-Hour Delay. Your Bedrock Bill Doesn't

Starbucks Abandons Borked AI Inventory Tool That Couldn't Count

Two abandoned Soviet space shuttles left in the Kazakh steppe (2017)

Custom Errors Are Non-Negotiable in My Rust Applications

Tony Gilroy, Andor creator doesn't want his work to become training data

Show HN: Open Envelope – an open schema for defining AI agent teams

Tsplat – Run Gaussian splatting in your terminal

A New Design for Pretty Printer Implementations in Rust

Design Engineering Magazine

AstralDB: <3MB general-purpose RDBMS with no external dependencies

I've been working on AstralDB: an RDBMS with broad SQL syntax coverage (DDL/DML, CTEs, OLAP and OLTP, multiple data formats, geospatial, graphs, vectors, etc...), asynchronous I/O, bytecode VM, WAL, encryption, compression, and a MathSci module for signal processing, machine learning, NLP, autograd, and solving differential equations all in a single static <3MB binary. The main purpose of it is to break assumptions about traditional relational database synchronous I/O and query planning that ...

SoftBank says it will invest up to €75 billion to build French data centers

768GB Intel Optane DIMMs to run 1T-parameter LLM with single GPU at 4tps

wolfSSL releases a new product; wolfCOSE a zero alloc C embbedded COSE stack

I am against GenAI and everything it stands for

Domain Expertise Has Always Been the Real Moat

Kore: Binary File Format Optimized for Modern Data Systems (Open Source)

Mystery company accidentally blew $500M on Claude AI in a single month

Zerostack v1.3.4 released – Lightweight Unix-inspired coding agent

An OS in pure Rust with its own TCP/IP and TLS 1.3 stack, fetching the live web

A disappearing Service Processor (2025)

Dear Steve Lemay

We are constantly broadcasting emotional data

I found a seashell in the middle of the desert

Jef Raskin, the Visionary Behind the Mac

Claw Patrol: an open-source security firewall for agents

Ernst & Young published cybersecurity report full of hallucinations

Open source project contains hidden instruction for "AI" agents: delete my code

Let's talk about EU Sovereignty (2025)

Stateless Actors

Microcode inside the Intel 8087 floating-point chip: register exchange

Zig ELF Linker Improvements Devlog

Leo's first encyclical attacks technological messianism

Canonical takes over Flutter desktop maintenance & roadmap

Snap alums unveil Ghost Angels fund

Downdetector and Speedtest sold to Accenture for $1.2B

To have a moral stance on AI is to be an outcast, and it sucks

‘What a joke’: Github Copilot’s new token-based billing spurs consternation among devs

Meta is reportedly developing an AI pendant

It Takes Two Neurons to Ride a Bicycle

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AI Job Grief: The Unnamed Psychological Crisis Hitting Tech Workers

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The groupthink boom: what three top VCs really think about the AI frenzy

Voxel Space

Vibe Coding Is Not Engineering

Anthropic surpasses OpenAI to become most valuable AI startup

Navier-Stokes fluid simulation explained with Godot game engine

Migrating Etsy’s database sharding to Vitess

Etsy has maintained a sharded MySQL architecture since around 2010. This database cluster contains most of Etsy’s online data and is made up of ~1,000 tables distributed across ~1,000 shards. Over the last 16 years, it has grown significantly: combined, these tables have over 425 TB of data and receive roughly 1.7 million requests per second. Etsy engineers access our MySQL data through a proprietary object-relational mapping (ORM). The ORM has a corresponding model for each MySQL table. W...

Making Ads Count: Using MMoE and Auxiliary Tasks to Better Connect Buyers & Sellers

When buyers search on Etsy, they need to quickly and easily find the perfect item. At the same time, sellers need to be confident their unique products are being seen by the right customers. Our Ads Search ranking model, which is built on a multitask learning foundation, is the critical link in this connection. Recently, we identified an opportunity to drive more meaningful buyer engagement by enhancing our model’s ability to predict purchase intent. We achieved this via a dual-pronged impr...

Shaping Product Understanding with Contrastive Reinforcement Learning

Etsy’s marketplace is defined by the creativity and craftsmanship of our sellers and the hundreds of millions of highly diverse products they offer. You can find silversmiths who cold-forge recycled sterling silver, weavers who dye raw fleece with indigo and black walnut, and ceramicists who throw stoneware on a kick wheel. These details define each product and often determine whether it matches a buyer’s taste, style, and interests. Sometimes buyers know exactly what they want, searching...

NanoTDB - Single-binary observability, time-series database, with built-in dashboard.

I have been working on a project called NanoTDB, designed specifically for environments where resources are constrained. I wanted a database solution that is small, simple to deploy, and maintains a minimal memory and CPU footprint, particularly for performance efficiency when running on SD storage. NanoTDB addresses these needs by offering: Key Features: Lightweight Architecture: Optimized for low-power hardware and minimal overhead. Embedded Web Dashboard: Provides real-time visibility int...