Watch Los Angeles get built, one building at a time (1880–2026)

Every building in the City of Los Angeles, one box per structure, colored by the decade it was built. Watch the city fill in from 1880 to today.

bzip3

https://camo.githubusercontent.com/e60efbfdc1e69aaf158f5c64e16ac70b7c91025d7831c69832c32a1cb499f657/68747470733a2f2f7265706f6c6f67792e6f72672f62616467652f766572746963616c2d616c6c7265706f732f627a6970332e7376673f636f6c756d6e733d33
Bzip3 is a high-performance compression library with higher ratios and better performance, built on order-0 context mixing entropy coder and Burrows-Wheeler transform. It's licensed under LGPLv3 only, with contributions from Ilya Grebnov and others.

Keep Our Servers Running

https://blog.archive.org/wp-content/uploads/2026/08/match-graphic-25-plus-click-to-donate-1024x1024.png
The Internet Archive aims to provide universal access to human knowledge, and its infrastructure relies on donations. Monthly gifts help maintain servers, ensuring books are readable and websites are accessible for future generations.

PostgreSQL 19 Interactive Tour

https://victoriametrics.com/blog/postgres-19/preview.webp
PostgreSQL 19 introduces significant changes, including property graph queries, REPACK CONCURRENTLY for table maintenance, and improved optimizer features. The new version also includes various bug fixes and performance enhancements.

Simple Is Not Small

https://jyn.dev/assets/rope.png
The author discusses the importance of simplicity in programming, contrasting it with coupling and complexity. They argue that small programs can be coupled, while simple ones are decoupled and easy to maintain.

Caltech Mathathon – first hackathon ever devoted to research level mathematics

https://mathathonchallenge.com/img/openai.png
A complex structure was shown in a six-sphere, raising questions about AI's role in math. A global competition will be held to solve open conjectures and build new theories using frontier models, with prizes awarded for promising results.

Decoding the NEC V20 Microcode

https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjskHCopDIB5dU1q0D0lGEI6lqkA6e9U01Bym_U9Bv1WKKfrLJtFfe33H2Y-Ewu_AKW7ToWmFMBLHQtvAzR1kbQWV-bOVJej0EPqefkGYf0LRRw8rzQbed490tfEjo85vWnxPhfffnec9fraZJku7ULbAj-jIB0gBksBozA8Jxhkc_L4a1zmB7dFp18mEgT/w640-h558/v20_die_shot_large_01.jpg
A user has successfully decoded the NEC V20 microcode, allowing for accurate emulation of the CPU. The decoding process involved analyzing die photography and using machine learning to identify bits in a 29,928-bit ROM array.

The Dataflow Model Revisited

The Dataflow Model paper proposed a unified model for batch and streaming engines, emphasizing event time and strong consistency. Its core foundations have aged well, but the analytical interface was flawed in its implementation.

Tesla killing Solar Roof is leaving installers with six-figure losses

https://electrek.co/wp-content/uploads/sites/3/2019/06/Tesla-Solar-Roof-quote.jpg?quality=82&strip=all&w=1600
Tesla abruptly ended its Solar Roof program, leaving third-party contractors with significant financial losses and stranded investments. The company's decision has left installers scrambling to redesign or replace active projects, while Tesla will honor existing warranties but faces skepticism about long-term parts availability.

C Is Not a Low-Level Language (2018)

IP: 135.232.208.133, RAY: a3783111be0a99f0

Methods for Random Gradients

https://storage.ghost.io/c/e5/51/e5518248-64c6-46dd-941d-a7fd73d59c60/content/images/2024/11/20241106-074836.png
The author explores methods for generating random gradients, starting with heightmaps and color scales, leading to dynamic SVG implementations. AI models now enable unpredictable yet creative gradient generation through prompts.

No constitutional right to clean water, federal court finds

The 5th Circuit Court of Appeals dismissed a lawsuit from Mississippi residents over lead-contaminated water, ruling the US Constitution does not guarantee access to clean drinking water. The court found no constitutional right to bodily integrity under the Fourteenth Amendment's Due Process Clause for this specific issue.

Show HN: HomeCat – Design your backyard office

https://myhomecat.com/opengraph-image.png
Keep your project on track. Get code-compliant building plans, material/cut lists, and a guide for any construction project.

Live map of public transport in Belgium

https://openbaarvervoerbelgie.be/og.png
Elke bus, tram, metro en trein van De Lijn, STIB-MIVB, TEC en NMBS op één kaart, met realtime vertragingen, haltes en vertrektijden. De kaart wordt geladen… · La carte se charge… · Loading the map…

216M Spy TVs – The LG Smart TV Problem [video]

Whistle Synth

https://www.jefftk.com/whistle-synth-in-app-store.png
A new synthesizer app is available in the Mac App Store, using whistling to control it and featuring lower latency and more voices. The app was developed with AI assistance, allowing for a more versatile and user-friendly experience.

Speculative Decoding in vLLM on AMD GPUs

https://vllm.ai/blog-assets/figures/2026-08-23-speculative-decoding-amd-gpus/figure-method-summary.svg
Speculative decoding in vLLM allows for verifying multiple drafted tokens in a single target-model pass, improving output-token throughput. The method varies across drafting methods and proposal lengths, depending on the model family, draft checkpoint, workload, and acceptance behavior.

De-Brainrot Vacations

https://devz.cl/images/4638688D-E3B3-4B10-B315-926250B9166C_1_105_c.jpeg
The author reflects on how their brain has changed since starting as a software engineer, feeling mentally exhausted and now struggling with slower thinking and less profound ideas. They've recently rediscovered reading and learning through new hobbies like physics, calculus, and programming.

Smartphone makers don't bother to comply with EU repairability requirements

https://image.theregister.com/4093968.jpg?imageId=4093968&panox=0.00&panoy=0.00&panow=100.00&panoh=100.00&heightx=0.00&heighty=0.00&heightw=100.00&heighth=100.00&width=960&height=432&format=webp&format=jpg
The EU's repairability rules for smartphones and tablets have shown low compliance, with over 80% of devices lacking necessary repair information. Manufacturers are required to publish self-reported repairability scores and spare parts prices, but enforcement is needed to ensure transparency.

Academia as a d-index measuring contest

Impedance Matching (2017)

https://www.edge.org/sites/default/files/annualimage/bookimage/Unknowns_cover500_0.jpg
An impedance matcher is a device that converts energy from one form to another, often by matching the impedance of two different systems. Examples include the transmission system in cars, transformers on electric poles, and various components in soundproofing booths and recording equipment.

Splash-free urinals (2025)

Ask HN: Fable hacked my piano, can I release the results?

A user purchased PianoDisc music, including Eric Satre's work, and experimented with AI tools Astra and Fable to create their own versions. The AI successfully created a version of Gymnopedie No 1 but found the original PianoDisc version had obfuscated MIDI data that made it unplayable on other systems.

Making a Python interpreter in 1024 bytes

https://austinhenley.com/blog/images/python1024.png
A Python interpreter in 1024 bytes of C code is being developed, focusing on a subset of the language with minimal syntax. The interpreter uses recursive descent parsing and executes expressions along the way without error handling or intermediate representation.

It took a year to ship WebAssembly in Anubis

https://anubis.techaro.lol/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=v1.28.0-pre1.0.20260831142821-4578023de7b6
Anubis is a security measure to prevent AI scraping, causing temporary downtime. To access the website, disable plugins like JShelter that block modern JavaScript features.

Ask HN: How do you manage skills files?

The user is looking for ways to manage and utilize skills, especially general-use skills, in their coding agent setup. They believe that model capabilities will eventually replace some of these skills but are interested in finding alternative methods to manage them.

Unified Arabic

https://worksthatwork.com//assets/Articles/91/Images/_resampled/SetWidth1200-Scan-40.jpg
Nasri Khattar, a Lebanese architect, developed Unified Arabic in 1932 to simplify the complex writing system and make it more legible on typewriters. His project aimed to reduce the number of letter variations from hundreds to just 30 forms, making it easier for people to learn and read Arabic.

GrapheneOS Overhauled Default Apps and Secure Clipboard

We're well into the process of converting the Messaging app included in GrapheneOS into a modern app. We'll be making a new release later today with a completely overhauled user interface written in Android Compose. We've made a massive amount of other improvements and bug fixes beyond that too.

I Connected My Withings Body+ to Home Assistant with an ESP32

https://didac.dev/_next/image?url=%2Fblog%2Fwithings-scale-home-assistant%2Fwithings-esp32-ha.webp&w=3840&q=75
The user successfully integrated their Withings Body+ scale with Home Assistant using an ESP32 board, bypassing the need for the official Withings app. The custom integration allows for seamless weight tracking without requiring Wi-Fi or opening the app, and it works as expected with multiple profiles.

Show HN: Wg-admin – web UI for an existing WireGuard host

https://raw.githubusercontent.com/logimaxx/wg-admin/main/docs/screenshots/interface.png
wg-admin provides a web UI for managing existing WireGuard configurations without replacing them. It allows adding/editing peers, generating .conf files, and applying changes with wg syncconf to avoid interface bounce.