StreetComplete: Fixing OpenStreetMap, one tiny quest at a time

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Help improve OpenStreetMap with StreetComplete! This app finds missing map data in your vicinity and displays it on a map as quests. Solve each quest by visiting the location on-site and answering a simple question to update the map. The info you enter is directly added to OpenStreetMap in your name, without the need to use another editor.

Mapping homes you can buy from the US government for <$100k

https://govauctions.app/api/image?url=https%3A%2F%2Fres.cloudinary.com%2Fyardi%2Fimage%2Fupload%2Fq_auto%2Cf_auto%2Cc_limit%2Fhhs%2FIMG_3811_616731_488155005.jpg
The US government owns 2,074 homes, with 335 listed under $100,000 and 15 under $25,000, mostly in the Rust Belt and rural South. These homes are sold as-is through licensed agents, often requiring significant repairs.

A better way to tie your gym shorts. (Or any drawstring) [video]

98% Isn't Much

The 98% statistic is often misleading as it implies success for most, but neglects the 2% who fail. Truly robust engineering requires handling edge cases, not just meeting a general average.

30papers.com – Ilya's 30 essential ML papers, in a beginner friendly format

The user provided a list of various research papers, blog posts, and articles related to deep learning, neural networks, and artificial intelligence, covering topics such as variational autoencoders, convolutional networks, recurrent neural networks, and transformer models. These resources aim to explain complex concepts in deep learning and provide practical examples and implementations for ...

Amazon Without the Knockoffs

https://knockoff.shopping/demo/wnpethome.jpg
The extension filters Amazon listings with customizable options and allows users to trust or block brands. It also enables one-click misclassification reports and uses plain text files for brand lists.

Europe's company websites are mostly served by US vendors

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Researchers studied 19,450 European company entities and found US-headquartered vendors serve the majority of primary websites in the UK and Netherlands, and the plurality in Italy, Spain, and France. Cloudflare is the single largest internet-facing infrastructure vendor in every sampled country.

Chat Control passed first round in EU Parliament

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The European Parliament voted to reinstate the Chat Control regulation with a narrow majority, allowing tech giants to scan private chats for child abuse material. The move was seen as an unprecedented parliamentary maneuver to avoid a regulatory gap before the summer break.

Microsoft Fire IdTech Team at Id Software

id Software developers working on idTech have been fired due to massive Xbox layoffs. Approximately 1,600 id Software roles were eliminated as part of a 3,200-person team reduction across Xbox divisions.

Top researchers leave USA for the Netherlands (in Dutch)

https://www.nwo.nl/sites/nwo/files/styles/max_1300x1300/public/media-images/shutterstock_96360815.jpg?itok=PXZAbZn6
Hier is een samenvatting van het artikel in 2 concise Engelse zinnen van niet meer dan 200 tekens:

9 Mothers (YC P26) Is Hiring in Austin, TX

https://storage.googleapis.com/ployai/dd1475f0-2410-4ca9-b24e-7883c3bddc93/user/570ba5d4-mounted-edda-stylized.png
The team ships hardware on software tempo, focusing on real deployment, short iteration loops, and hands-on ownership of specs. They prioritize user needs, iterating based on data and affordability, not just roadmaps.

Better Auth is joining Vercel

https://pbs.twimg.com/media/GYLNP1wWcAQVLNM?format=jpg&name=small
The author of Better Auth joined forces with Vercel to focus on building a framework-agnostic auth framework. This partnership will help them invest in the future of auth, including secure access for agents acting on users' behalf.

Reducing Doom Loops with Final Token Preference Optimization

https://www.liquid.ai/_next/image?url=%2Fimages%2Fbackgrounds%2Fsoft-7.webp&w=3840&q=75&dpl=dpl_CFp2Gwu71H8UDchdSrKT4rMMPTpo
A doom loop is a common failure mode during inference: the model emits a span (often something like “Wait, let me reconsider…”), then repeats the same span again and again, until the context window is exhausted. Small reasoning models are more prone to this behavior, especially on long thinking traces and hard problems [1]. The commonly applied inference-time fix is to apply ...

Jim's TrueType QR Code Font

https://opengraph.githubassets.com/933b18650cefc9e4f86d9af603a0edc04cb4c33e373d36be52e931db0368cb54/jimparis/qr-font
This repo generates experimental OpenType fonts that turn bracketed text into QR codes while preserving readability. The fonts are generated from Liberation Sans Regular and licensed under the SIL Open Font License.

But Nothing Has Changed on Our Side

The website is blocked due to security reasons after a suspicious action was detected. Please email the site owner with the Cloudflare Ray ID and details of the action that triggered the block.

MacSurf 1.68 – NetSurf on OS 9 Released

https://opengraph.githubassets.com/0f5c67d45345af9af01bcabd576994ce03c56b157c6226a8abb6e2fbdbf24aeb/mplsllc/macsurf/releases/tag/v1.86
MacSurf is a native web browser for Classic Mac OS with real HTTPS and a modern JavaScript engine. It now runs on PowerPC Macs with Mac OS 9.1-9.2.2, thanks to a new engine called macQJS.

Show HN: PostgreSQL performance and cost across 23 EC2 instance types

Choose how big your data is and how much throughput you need. Each point is a benchmarked instance × disk; everything right of the target line clears your requirement, and the cheapest of those is the pick.

Weighing smoke: why AI visibility dashboards are mostly useless

https://betterthangood.xyz/img/2026-07-05-weighing-smoke-1440-8cb06999.webp
The AI search visibility tracking industry is based on flawed assumptions and lacks validity, with most tools averaging random results and providing no tangible conversion. A simple and cost-effective alternative is to track the probability of appearing in a consideration set across multiple intent-varied prompts.

Software Bonkers

https://craigmod.com/images/about/craigmod-headshot-2025-small-01.jpg
I’m software bonkers: I can’t stop thinking about software. And I can’t stop building software. I’ve always been opinionated about how software should work. Mainly, it should be fast. The bounds of it should be “knowable.” The contract you have with it should be “sane” (i.e., you just own it). But I’m busy, and I’m an OK-but-not-great coder. So all of these software opinions largely stayed ...

C++ Details of Asymmetric Fences

https://nekrozqliphort.github.io/assets/img/posts_img/2026-07-06-membarrier/dekkers-example-light.png
Asymmetric thread fences are a construct that allows for optimizing common paths in concurrent algorithms at the expense of uncommon paths by using lighter fences on the common path and heavier synchronization costs on the uncommon path. They are implemented using compiler barriers and processor-specific fence instructions, with the Linux membarrier() syscall being used to enforce consistency ...

Automating AI Away

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A. Karpathy once said that OpenAI researchers are effectively "automating themselves away" by improving their AI. Right now I develop Beagle SCM with Anthropic's Fable and it is of course a brilliant model able to spot nits in a mountain of code, file tickets, make fixes. Still, yesterday it managed to commit the build/ dir into a project, twice. It is brilliant, but clumsy. Due ...

Sites that block AI training crawlers mostly ignore the answer time bots

https://sitedex.dev/insights/answer-era/og.png
← Insights We read the robots.txt of the top 10,000 sites. 38% of the GPTBot rules we could date were written in a single quarter of 2023 — right after GPTBot launched and the Times sued. Then every AI company quietly added a second bot, the one that answers questions in real time, and almost nobody wrote a rule for it. On July 1, Cloudflare announced a way for site owners to start charging ...

GitHub Freno: cooperative, highly available throttler service

https://opengraph.githubassets.com/69f8628dc0d59158f1d8f52501af397e6e90035a8f02919d00f9af8220f244ef/github/freno
Current implementation can throttle writes to (multiple) MySQL clusters, based on replication status for those clusters. freno will throttle cooperative clients when replication lag exceeds a pre-defined threshold. freno dynamically adapts to changes in server inventory; it can further be controlled by the user to force throttling of certain apps. freno is highly available and uses raft ...

Why we built yet another Postgres connection pooler

https://pgdog.dev/assets/images/listen-arch.svg
PgDog is a proxy for scaling Postgres. One of its features is connection pooling, which allows many client applications to use the same database without exceeding its connection limit. There are many connection poolers out there, notably PgBouncer, RDS Proxy, Pgpool-II, Supavisor, and others. So, why build another one? Most tools in the Postgres ecosystem take the UNIX philosophy very ...

The Art of Computer Programming by Donald E. Knuth

https://www-cs-faculty.stanford.edu/~knuth/boxed-set-thumb.jpg
New material for volume 4 will first appear in beta-test form as fascicles of approximately 128 pages each, issued approximately twice per year. the first finder of any error in my books receives 0x$1.00 ($2.56), deposited to their account at the bank of san serriffe - if you find an error, i'll fix it. a citation to the original text is included in the index of each volume unless

Historic Photos of NASA's Cavernous Wind Tunnels

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Throughout the 20th century, NASA made extensive use of wind tunnels to test and refine designs for airplanes, spacecraft, and many other vehicles and structures.

Microsoft Can Track Users via a Windows Device ID

https://i.pcmag.com/imagery/articles/02VZVE6JO9dXqKyKowYhZzj-1.fit_lim.v1783350873.jpg
A 19-year-old hacker's arrest revealed Microsoft can track Windows PCs through a "Global Device ID" with no easy opt-out, sparking surveillance fears. Microsoft's device ID can associate with third-party services and track online activity, raising concerns about potential abuse for surveillance purposes.

Chat Control 1.0 and 2.0 Explained

https://fightchatcontrol.eu/data/logo.webp
Two EU "Chat Control" laws are moving through institutions in parallel, one expired and the other being revived. The laws aim to regulate digital platforms' detection and reporting of child sexual abuse material, with disagreement over scanning of private communications.

Ask HN: Where are the good search engines for mathematical formulas?

Here's what I found so far searchonmath.com : Gives irrelevant results such as p = m v when searching for F = m a https://search.mathweb.org/: A collection of abandoned projects and offline sites

Dolosse – a South African invention used over the world

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Dolosse are large, heavy blocks used in coastal management to prevent erosion and dissipate wave force. They were invented in South Africa but the inventors received no payment or recognition.