Piotr Sarna

[Piotr Sarna @sarna_dev]

most important lesson from years of distributed systems: keep everything on a single machine for as long as humanly possible

[Piotr Sarna @sarna_dev]

side note: you can work on your title all you want, but it wil never be as epic as its Japanese translation
https://t.co/VZbZ8JC3QK

[Junichi Ito (伊藤淳一) @jnchito]

カックさん、「世界で闘う エンジニア・アウトプット力を鍛える本」を読んでいただき、どうもありがとうございます〜！
たっぷり入った訳注は日本語版の売りのひとつですね。訳注だけでも「へぇ〜！」と思える情報があると思うので、みなさんぜひ書店で手に取ってみてください！

[Piotr Sarna @sarna_dev]

achievement unlocked: book translated to Japanese 😌

[Piotr Sarna @sarna_dev]

@penberg context size is also important, esp. if you plan on "thinking" longer

[Cynthia Dunlop @c_a_dunlop]

@sarna_dev @ManningBooks A couple other sightings (apparently print books are still big in Japan)

[Cynthia Dunlop @c_a_dunlop]

And hello Japanese translation -- apparently in bookstores now!

[Cynthia Dunlop @c_a_dunlop]

Nice blog post on the upcoming Japanese translation of Writing for Developers.

[Junichi Ito (伊藤淳一) @jnchito]

ブログ書きました。僕が監訳した本が9月17日に発売されます！みなさんよろしくお願いします 🙏

「世界で闘う エンジニア・アウトプット力を鍛える本」を監訳しました（2026年9月17日発売） - give IT a try https://t.co/NCNxnXzo6c

[Piotr Sarna @sarna_dev]

@0xSero how long is the wait on an average prompt? Honest q, I never owned a mac in my life but that soldered RAM is tempting

[Piotr Sarna @sarna_dev]

I don't understand a single word, and yet it's the most satisfying author copy I've received to date.

[Piotr Sarna @sarna_dev]

@penberg https://t.co/TVzt9owZOs lots of public setups here

[Arena.ai @arena]

Meet… Arena Conversations. @petergostev sits down with @poolsideai researchers,Connor Adams and Aalhad Patankar, to discuss how they’re building frontier open coding models.

Episode drops today at 10am PT on our YouTube.

They dig into Poolside's Laguna model family, why the team publishes full trajectories (not just benchmark scores) for anyone to audit, and how "experiments" at Poolside range from data mixes to harness design to reward-tuning decisions run tens of thousands of times a day.

[Piotr Sarna @sarna_dev]

@alexocheema https://t.co/TVzt9owZOs

[Piotr Sarna @sarna_dev]

@SouthEuro Croatia is more expensive than most of the countries picking it for the main vacation destination. It simply has superior coast ¯\_(ツ)_/¯

[Eigen Labs @eigenlabs]

We started the https://t.co/38dsNYD3nP challenge with @poolsideai with one key question. How much faster can the community make Laguna XS 2.1 run on a Mac?

The answer so far has been 2.6x faster.

Nearly 1,800 submissions and 35 solvers later, the challenge comes to a close today.

And there’s one more thing. One of the solvers is taking home a Mac Mini M4 24GB!

Winner below ↓

[Manning Publications @ManningBooks]

One way to fall behind in data science has nothing to do with models or tools. It's struggling to explain your work.

In Writing for Developers, @c_a_dunlop and @sarna_dev share practical techniques for communicating technical ideas with clarity.

Hear Cynthia on Value Driven Data Science: https://t.co/nCck32HdAm

Book: https://t.co/zGHNmIgOQm

[Piotr Sarna @sarna_dev]

https://t.co/Fn5KiZRy0I

[Piotr Sarna @sarna_dev]

July in https://t.co/8mJ7fPbtDc 👇

Tailscale didn’t stop the Hugging Face intrusion // @apenwarr, @Tailscale
Finding bugs in Raft implementations // TW Lim, Rohan Padhye, Marco Primi, @AntithesisHQ
I'm sorry, Dave // @dhh
Watching Go’s new garbage collector move through the heap // @eatonphil, @theconsensusdev
Running unmodified Doom in the SQLite bytecode language // @glcst, @tursodatabase
My thoughts on the Bun Rust rewrite // Andrew Kelley
Performance per dollar is getting faster and cheaper // Ian Ye, @wafer_ai

[Piotr Sarna @sarna_dev]

agent sandboxing techniques by level of isolation:
- bwrap/landlock/seccomp/seatbelt
- userspace kernels/syscall capture
- rootless containers
- virtual machines
- someone else's laptop

[Poolside @poolsideai]

We just crossed 10T tokens served across all our models in less than 3 months!

Laguna S 2.1 is pushing new highs at ~300B tokens a day, and has processed +2T in the 14 days since release.

That’s across @OpenRouter @vercel and our direct API.

Really good to see demand for open models keep accelerating.