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Lore – Open source version control system designed for scalability

https://lore.org/
936•regnerba•10h ago•507 comments

Storied Colors – a catalogue of named colors

https://storiedcolors.com/
65•susiecambria•2h ago•12 comments

US holds off blacklisting DeepSeek, more than 100 firms deemed security risks

https://www.reuters.com/world/china/us-holds-off-blacklisting-chinas-deepseek-more-than-100-firms...
319•giuliomagnifico•20h ago•343 comments

Leaked financial docs show OpenAI is losing billions of dollars a year

https://arstechnica.com/ai/2026/06/leaked-financial-docs-show-openai-is-losing-billions-of-dollar...
227•greenchair•3h ago•134 comments

GLM-5.2 is the new leading open weights model on Artificial Analysis

https://artificialanalysis.ai/articles/glm-5-2-is-the-new-leading-open-weights-model-on-the-artif...
766•himata4113•15h ago•382 comments

How we run Firecracker VMs inside EC2 and start browsers in less than 1s

https://browser-use.com/posts/firecracker-browser-infra
189•gregpr07•1d ago•118 comments

Loreline – Tools for writing interactive fiction

https://loreline.app/en/
57•smartmic•4h ago•8 comments

Taxonomy of the Occlupanida (parasitoids on bread bag tags)

https://www.horg.com/horg/?page_id=921
12•beatthatflight•1h ago•2 comments

Launch HN: Adam (YC W25) – Open-Source AI CAD

https://github.com/Adam-CAD/CADAM
143•zachdive•8h ago•77 comments

U.S. science is in chaos

https://www.scientificamerican.com/article/americas-compact-between-science-and-politics-is-broken/
628•presspot•14h ago•719 comments

Tesco moving 40k server workloads off VMware amid Broadcom's abusive conduct

https://arstechnica.com/information-technology/2026/06/tesco-moving-40000-server-workloads-off-vm...
135•Bender•3h ago•55 comments

A robot is sprinting towards you. Do you want it running on Claude or Grok?

https://openrouter.ai/blog/insights/royale-last-agent-standing/
153•Usu•3h ago•124 comments

Show HN: An 8-bit live gamecast for baseball

https://ribbie.tv/watch
192•brownrout•7h ago•108 comments

RFC 10008: The new HTTP Query Method

https://www.rfc-editor.org/info/rfc10008/
313•schappim•13h ago•141 comments

Show HN: We built an 8-bit CPU as 2nd year EE students

https://github.com/c0rRupT9/STEPLA-1
11•CorRupT9•2d ago•0 comments

The Competitive Moat That AI Can't Replicate

https://ghostinthedata.info/posts/2026/2026-06-13-human-connection-moat/
110•speckx•7h ago•92 comments

The Return of Rigorous Full-System Timing Simulation

https://www.sigarch.org/the-return-of-rigorous-full-system-timing-simulation/
27•matt_d•1d ago•0 comments

Volkswagen started blocking GrapheneOS users

https://discuss.grapheneos.org/d/35949-volkswagen-app?page=3
468•microtonal•9h ago•321 comments

The (real) dead economy theory

https://pluralistic.net/2026/06/17/its-the-stupid-economy-stupid/
46•hn_acker•1h ago•16 comments

Clojure Hosted on Go

https://github.com/glojurelang/glojure
5•dnlo•1h ago•0 comments

Trellis AI (YC W24) hiring a product lead to build agents for healthcare access

https://www.ycombinator.com/companies/trellis-ai/jobs/Cg94htp-product-lead
1•macklinkachorn•7h ago

Why thinking out loud with someone beats thinking alone

https://www.thesignalist.io/s/the-dialogue-dividend/
151•kodesko•11h ago•75 comments

Made a free macOS menu bar app that fixes typing in the wrong keyboard layout

https://flickey.site
37•tal_alfi•4h ago•17 comments

Hacker News but for independent blogs

https://bubbles.town/
537•headalgorithm•16h ago•175 comments

Show HN: Inkwash, a watercolor sketching app and explanation

https://johnowhitaker.github.io/inkwash/about
161•Yenrabbit•3d ago•20 comments

Kirkland Roundabouts

https://kirklandroundabouts.com
153•DenisM•3d ago•123 comments

Gliderboy Reinvents Humble Weather Balloon with Flight Home

https://www.bloomberg.com/news/newsletters/2026-06-15/-gliderboy-reinvents-weather-balloon-with-r...
11•kejaed•2d ago•1 comments

Want your images back? That'll be $5

https://www.lutr.dev/want-your-images-back-sure-that-ll-be-5-dollars
597•lutr•11h ago•248 comments

MicroUI – A tiny, portable, immediate-mode UI library written in ANSI C

https://github.com/rxi/microui
178•peter_d_sherman•12h ago•66 comments

Image Compression

https://www.makingsoftware.com/chapters/image-compression
153•vinhnx•4d ago•23 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.