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Regressive JPEGs

https://maurycyz.com/projects/bad_jpeg/
172•vitaut•4h ago•8 comments

AWS: Inaccurate Estimated Billing Data – $1.7 billion

1151•nprateem•22h ago•689 comments

Reviving a 15-year-old netbook with Arch Linux

https://parksb.github.io/en/article/41.html
79•parksb•3d ago•39 comments

Thanks HN for 15 years of support and helping me find my life's work

537•nicholasjbs•14h ago•52 comments

First atmosphere found on Earth-like planet in habitable zone of distant star

https://www.bbc.com/news/articles/cy4kdd1e0ejo
443•neversaydie•17h ago•256 comments

The Zilog Z80 has turned 50

https://goliath32.com/blog/z80.html
209•st_goliath•12h ago•70 comments

TP-Link Kasa cameras leaked home GPS via unauthenticated UDP for 6 years

https://github.com/BadChemical/IoT-Vulnerability-Research-Public/blob/main/TP-Link_Kasa_EC71/Kasa...
106•BadChemical•10h ago•26 comments

In-toto: A framework to secure the integrity of software supply chains

https://in-toto.io/
11•Erenay09•1d ago•0 comments

Learning a few things about running SQLite

https://jvns.ca/blog/2026/07/17/learning-about-running-sqlite/
235•surprisetalk•14h ago•60 comments

Porting nanochat to a TPU: what carries over from PyTorch, and what breaks

https://github.com/tucan9389/nanochat-jax/discussions/1
9•tucan9389•2d ago•0 comments

I started a “dirt notebook”

https://pinewind.bearblog.dev/i-started-a-dirt-notebook/
51•herbertl•6h ago•43 comments

Stenchill: 3D Printable Solder Paste Stencil Generator

https://www.stenchill.com/en/
39•radeeyate•7h ago•7 comments

Kimi K3, and what we can still learn from the pelican benchmark

https://simonwillison.net/2026/Jul/16/kimi-k3/
324•droidjj•17h ago•169 comments

Vāgdhenu: A Sanskrit Chanting TTS System

https://prathosh.in/vagdhenu/
149•subinalex•4d ago•32 comments

Shipping OpenStrike: A Counter-Strike-Shaped FPS on a 2004 Handheld

https://pocketjs.dev/blog/shipping-openstrike/
35•itvision•6d ago•14 comments

An Update on Igalia's Layer Based SVG Engine in WebKit (Reducing Layer Overhead)

https://blogs.igalia.com/nzimmermann/posts/2026-07-14-lbse-conditional-layers/
41•bkardell•3d ago•1 comments

Static search trees: 40x faster than binary search (2024)

https://curiouscoding.nl/posts/static-search-tree/
105•lalitmaganti•11h ago•6 comments

Battery packs: Let's talk about crates, baby

https://smallcultfollowing.com/babysteps/blog/2026/07/15/battery-packs/
14•MeetingsBrowser•1d ago•3 comments

DrDroid (YC W23) Is Hiring

https://www.ycombinator.com/companies/drdroid/jobs/w45QcNV-product-engineer-assignment-mandatory
1•TheBengaluruGuy•6h ago

Lego building instructions through time

https://www.lego.com/en-us/history/articles/d-lego-building-instructions-through-time
107•NaOH•13h ago•24 comments

Open Book Touch: open-source e-reader

https://www.crowdsupply.com/oddly-specific-objects/open-book-touch
100•surprisetalk•11h ago•35 comments

The Isomorphic Labs Drug Design Engine unlocks a new frontier beyond AlphaFold

https://www.isomorphiclabs.com/articles/the-isomorphic-labs-drug-design-engine-unlocks-a-new-fron...
68•andsoitis•8h ago•6 comments

The state of open source AI

https://stateofopensource.ai/
424•rellem•17h ago•302 comments

Kaiser nurses say AI, surveillance are making their jobs and patient care worse

https://localnewsmatters.org/2026/07/15/kaiser-nurses-say-ai-workplace-surveillance-are-making-th...
489•gnabgib•9h ago•310 comments

Painting the sides of railroad rails white to reduce derailment

https://www.up.com/news/safety/Tracking-Rail-Heat-260608
84•zdw•11h ago•44 comments

Show HN: A zoomable timeline of 4M Wikipedia events

https://app.everything.diena.co/
89•lortex•13h ago•31 comments

Moonstone: Modern, cross-platform Lua runtime and package manager written in Zig

https://moonstone.sh/
50•ksymph•6h ago•13 comments

Show HN: IKEA Complexity Index

https://ikea.greg.technology/
8•gregsadetsky•4h ago•3 comments

Frank Lloyd Wright’s first home

https://www.architecturaldigest.com/story/frank-lloyd-wright-home-and-studio-everything-you-need-...
99•NaOH•5d ago•50 comments

Three ways people respond to a problem (other than solving it)

https://improvesomething.today/responses-to-problems/
231•surprisetalk•17h ago•128 comments
Open in hackernews

OpenTelemetry protocol with Apache Arrow

https://opentelemetry.io/blog/2025/otel-arrow-phase-2/
108•tanelpoder•1y ago

Comments

andygrove•1y ago
I've just started exploring adding OpenTelemetry support to the Comet subproject of DataFusion. I'm excited to see the integration with Apache Arrow (Rust) and potentially DataFusion in the future.
SomaticPirate•1y ago
Wow, anyone able to provide a ELI5? OTel sounds amazing but this is flying over my head
theLiminator•1y ago
Not sure, but seems like it will be producing apache arrow data and carrying it across the data stack end to end from OTEL. This would be great for creating data without a bunch of duplication/redundant processing steps and exporting it in a form that's ready to query.
piterrro•1y ago
Unless I dont understand that fully (which could be the case).

This idea could fly if downstream readers will be able to read it. Json is great because anything can read it, process, transform and serialize without having to know the intrisics of the protocol.

Whats the point of using binary, columnar format for data in transit?

arccy•1y ago
better compression https://opentelemetry.io/blog/2023/otel-arrow/

You don't do high performance without knowing the data schema.

odie5533•1y ago
Is Arrow better than Parquet or Protobuf?
theLiminator•1y ago
Arrow is an in-memory columnar format, kinda orthogonal to parquet (which is an at-rest format). Protobuf is a better comparison, but it's more message oriented and not suited for analytics.
arccy•1y ago
the blog post comparison is against OTLP which is protobuf
datadrivenangel•1y ago
Not having to write to disk is great, and zero-copy in memory access is instant...
phillipcarter•1y ago
Warning: this is an oversimplification.

Performance optimization and being able to "plug in" to the data ecosystem that Apache Arrow exists in.

OpenTelemetry is pretty great for a lot of uses, but the protocol over the wire is too chunky for some applications where. From last year's post on the topic[0]:

> In a side-by-side comparison between OpenTelemetry Protocol (“OTLP”) and OpenTelemetry Protocol with Apache Arrow for similarly configured traces pipelines, we observe 30% improvement in compression. Although this study specifically focused on traces data, we have observed results for logs and metrics signals in production settings too, where OTel-Arrow users can expect 50% to 70% improvement relative to OTLP for similar pipeline configurations.

For your average set of apps and services running in a k8s cluster somewhere in the cloud, this is just a nice-to-have, but size on wire is a problem for a lot of systems out there today, and they are precluded from adopting OpenTelemetry until that's solved.

[0]: https://opentelemetry.io/blog/2024/otel-arrow-production/

potamic•1y ago
This diagram really depicts things nicely

https://opentelemetry.io/blog/2023/otel-arrow/row-vs-columna...

ahoka•1y ago
A bit hand wavy.
KAdot•1y ago
> We are interested in making OTAP pipelines safely embeddable, through strict controls on memory and through support for thread-per-core runtimes.

I'm curious about the thread-per-core runtimes, are there even any mature thread-per-core runtimes in Rust around?

jauntywundrkind•1y ago
glommio is pretty well respected. https://www.datadoghq.com/blog/engineering/introducing-glomm... https://github.com/DataDog/glommio

ByteDance also has their very fast monio. https://github.com/bytedance/monoio

Both integrate io-uring support for very fast io.

julian-datable•1y ago
Integrations with OTLP are critical to driving adoption and probably one of the biggest pain points we've encountered when adopting it ourselves (and encouraging others to the same).

Adopting OTLP without third-party support is pretty time consuming, especially is your tech stack is large and/or varied.

Re runtimes: curious about this too. Feels like the right direction if you’re optimizing a telemetry pipeline.

akdor1154•1y ago
Damn that's some scope creep if I ever saw it: 'try sending Arrow frames end to end' => 'rewrite the otel pipeline in rust'. Seems like the goals of the contributors don't exactly align with the goals of the project.

Kind of a bummer - one thing i was hoping to come out of this was better Arrow ecosystem support for golang.

gitroom•1y ago
Man Ive dipped my toes into this too, and yeah, the way everyone wants different things always shakes things up fast. Kinda love seeing where it all ends up tbh.
mike_heffner•1y ago
Thanks for sharing this — it’s a really promising direction. The advantages of Arrow for OTLP, especially when used end-to-end, are compelling given the protocol overhead of OTLP.

We’ve been thinking along similar lines with the use of Rust, particularly for OpenTelemetry collection in environments where high performance and low resource overhead are critical, such as edge and serverless. With that in mind, we’ve open-sourced a lightweight OpenTelemetry collector written in Rust to address these use cases. We’ve also developed a native Lambda extension around it, and have seen encouraging interest from folks aiming to improve cold start times.

The project is still fairly early, but we’re optimistic that Rust can open up new opportunities for efficient observability pipelines. Vendors like Datadog are also moving in this direction with their Lambda extension and appear to be adopting Rust more broadly for data-plane components.

If this resonates, feel free to take a look here: https://github.com/streamfold/rotel. We’d love to hear your thoughts on how this could be useful.