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Things to know when you get cancer – 2026 Edition

https://jjmaxwell4.com/writing/things-to-know-when-you-get-cancer/
662•jjmaxwell4•4h ago•175 comments

OpenCode 2.0

https://anoma.ly/notes/opencode-2-0/
234•gmays•3h ago•88 comments

We’re releasing Jev 1.14.0 along with experimental features for dreamers

https://typesafe.ai/blog/jev-1-14
145•emschwartz•3h ago•52 comments

Tiny Little Office

https://tinylittleoffice.com/
82•donohoe•2h ago•14 comments

LFM2.5-24B-A2B: Built for Fast On-Device Agents

https://www.liquid.ai/blog/lfm2-5-24b-a2b
10•gmays•13m ago•0 comments

Do dentists know what they're doing?

https://mapwriting.substack.com/p/dentists
355•doitLP•2d ago•277 comments

Passkeys are not a trap

https://scotthelme.co.uk/passkeys-are-not-a-trap/
437•speckx•8h ago•611 comments

Better HTTP/1 connection reuse in Go 1.27

https://go.dev/blog/http-connection-reuse
189•allddd•7h ago•30 comments

Containment and monitoring failures are to blame for AI hacking reports: experts

https://www.csoonline.com/article/4234854/ai-agents-arent-going-rogue-frontier-labs-are-skipping-...
817•latexr•6h ago•439 comments

Americans' social activity has steeply declined in the past 30 years

https://www.dataforprogress.org/blog/2026/9/29/americans-social-activity-has-steeply-declined-in-...
174•hubraumhugo•8h ago•239 comments

Fancy Curl Sites

https://nytpu.com/gemlog/2026-03-18
66•adunk•4h ago•12 comments

Iosevka is an open-source, sans-serif and slab-serif monospace font

https://typeof.net/Iosevka/
696•otobrglez•15h ago•286 comments

Show HN: Petal, open-source CoScreen/ScreenHero finally free

https://petal.live/
104•thedracle•5h ago•25 comments

Anthropic's Scion is heavily inspired by Mononoke

https://sunshowers.io/posts/anthropic-mononoke/
220•sunshowers•3h ago•98 comments

Phloem: Git history grown like a slime mold

https://phloem.stemdeck.app/
77•thclpr•2d ago•19 comments

Fire at Starlink site in Bulgaria after suspected sabotage in Poland

https://dpa-international.com/politics/urn:newsml:dpa.com:20090101:261014-930-839530/
265•ilamont•5h ago•198 comments

Banks are now trying to offload the AI data center debt they just underwrote

https://startupfortune.com/banks-are-now-trying-to-offload-the-ai-data-center-debt-they-just-unde...
253•smartmic•5h ago•200 comments

Yandex outage: data shows that instead of going dark, malicious bots moved

https://blog.cloudflare.com/yandex-outage/
194•coloneltcb•3h ago•61 comments

Submarine cable resilience

https://blog.apnic.net/2026/10/14/submarine-cable-resilience/
124•speckx•8h ago•43 comments

Ask HN: CAD for wood working with LLM support?

4•reacharavindh•1d ago•6 comments

Virtual Oxide Labs: Emulating a Full Oxide Rack

https://oxide.computer/blog/voxel-labs
54•tosh•5h ago•5 comments

Has AI tells

https://theconsensus.dev/blog/2026/10/14/has-ai-tells.html?focus=1
66•7777777phil•7h ago•70 comments

Suicide rates highest ever among middle-aged men

https://www.telegraph.co.uk/news/2026/10/13/suicide-rates-highest-ever-among-middle-aged-men/
222•ivewonyoung•5h ago•288 comments

Google is silently linking your phone number across all signed-in accounts

https://www.androidauthority.com/google-auto-phone-number-verification-android-3723117/
352•Brajeshwar•7h ago•93 comments

Pg_vectorsearch: An index that is faster than pgvector's IVFFlat and HNSW

https://github.com/timescale/pg_vectorsearch
185•jascha_eng•12h ago•48 comments

Show HN: I wrote an email app that accepts only one sender per inbox

https://clova.email/
71•edpin2000•7h ago•57 comments

How Amazon pushes up prices all across the Internet

https://www.not-ship.com/how-amazon-pushes-up-prices-all-across-the-internet/
697•sighborg•14h ago•588 comments

Webster’s Dictionary: The pleasure of finding things out (2014)

https://jsomers.net/blog/dictionary
12•hangsi•1d ago•3 comments

Why is every rationalist blog post way too long?

https://alexwennerberg.com/blog/2026-10-13-long.html
167•epestr•18h ago•131 comments

America didn't lose its rare earth industry, it sold it

https://www.lawfaremedia.org/article/america-didn-t-lose-its-rare-earth-industry.-it-sold-it
147•speckx•6h ago•70 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.