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Discovery Loop

https://www.discoveryloop.com/
373•xtreak29•3h ago•221 comments

Zed DeltaDB

https://zed.dev/deltadb
95•ahamez•1h ago•23 comments

Beating GPT-5.6 Sol on retrieval with 100x cheaper open models

https://neon.com/blog/how-castform-neon-beats-frontier-models-on-price-and-efficiency
77•moonikakiss•1h ago•13 comments

Changes at Google DeepMind: Demis Hassabis from CEO to Chair, Jeff Dean departs

https://blog.google/company-news/inside-google/message-ceo/next-chapter-ai-momentum/
220•colesantiago•3h ago•387 comments

Atlassian Rovo Exfiltrates Data, Bypassing Controls

https://www.promptarmor.com/resources/atlassian-rovo-exfiltrates-data
67•hackerBanana•2h ago•21 comments

Muse Code and Muse Spark 1.2

https://research.meta.ai/blog/introducing-muse-code-and-muse-spark-1-2
34•paulkrush•46m ago•17 comments

GNU Hurd News 2026-Q2

https://www.gnu.org/software/hurd/news/2026-q2.html
48•plaguna•3d ago•24 comments

Celld: Self-hosted, distributed Durable Objects

https://github.com/denoland/celld
54•calvinfo•3h ago•1 comments

Sula: A Gemini protocol server written in Scryer Prolog

https://sagredo.dev/projects/sula/
11•triska•1h ago•0 comments

The Valley of Webhooks

https://weli.dev/blog/the-valley-of-webhooks/
82•weli•4h ago•36 comments

Born Against, or why hobby programming communities are against LLM usage

https://blog.fogus.me/llm/born-against.html
64•lladnar•1h ago•65 comments

Launch HN: HyperProbe (YC S26) – Agents that do read-only debugging in prod

https://www.hyperprobe.co
29•shailendraht•3h ago•18 comments

Phishers are hijacking legitimate cloud infrastructure

https://securelist.com/cloud-platforms-in-phishing/120832/
26•lschueller•2h ago•6 comments

Cloudflare OS: an open platform for agents, apps, and work

https://blog.cloudflare.com/cloudflare-os/
370•speckx•6h ago•203 comments

Goodhart's Law Comes for Every Benchmark You Trust

https://cacm.acm.org/blogcacm/goodharts-law-comes-for-every-benchmark-you-trust/
10•pseudolus•5d ago•4 comments

The Entropy of a Markov Chain

https://chillphysicsenjoyer.substack.com/p/the-entropy-of-a-markov-chain
78•surprisetalk•6h ago•3 comments

Discovery of a multicomponent alloy forged by the Hiroshima atomic blast

https://www.science.org/doi/10.1126/sciadv.aeg8299
76•_____k•5d ago•27 comments

What happens if you put work into the second dimension?

https://norbertkozsir.com/posts/work-in-the-second-dimension/
6•abelsm•1h ago•1 comments

Aristotle quotes on virtue, knowledge, and happiness

https://www.campion.edu.au/blog/top-25-aristotle-quotes-on-virtue-knowledge-and-happiness/
129•teleforce•5h ago•54 comments

Meta Ran Ads That Contained AI-Generated Child Sexual Abuse Imagery

https://www.wired.com/story/meta-ran-ads-that-contained-ai-generated-child-sexual-abuse-imagery/
14•malshe•14m ago•0 comments

Sycophantic AI Decreases Prosocial Intentions and Promotes Dependence (2025)

https://arxiv.org/abs/2510.01395
25•robin_reala•1h ago•8 comments

I’m leaving OpenAI to build telepathy

https://naomibashkansky.com/blog/telepathy/
44•devanshp•3h ago•77 comments

Western Sahara

https://en.wikipedia.org/wiki/Western_Sahara
84•brudgers•21h ago•56 comments

Building an Advanced Agentic Harness

https://data4sci.com/blog/building-an-advanced-agentic-harness
76•Anon84•6h ago•37 comments

Rubin Observatory's first LSST Camera release: 500k galaxies in the COSMOS field

https://rubinobservatory.org/news/rubin-new-window-cosmos-field
60•MarcoDewey•5h ago•8 comments

Painting with Gaussians

https://yogthos.net/posts/2026-08-03-splat-painter.html
70•yogthos•6h ago•13 comments

Stop sending me your errors

https://kramkow.ski/article/2026/08/05/stop_sending_me_your_errors.html
17•speckx•3h ago•1 comments

Faster Than Ninja

https://build2.org/blog/faster-than-ninja.xhtml
71•elasticdog•6h ago•26 comments

Position: LLMs Can't Jump

https://openreview.net/challenge?redirect=%2Fforum%3Fid%3DklU4737opt
210•theanonymousone•9h ago•141 comments

Civilian plane crash in New Mexico tied to military GPS blocking

https://www.wired.com/story/a-civilian-plane-crashed-in-new-mexico-was-the-militarys-tech-to-blame/
408•dzdt•8h ago•203 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.