Jan Ehrhardt

@jehrhardt.dev

Building distributed systems that scale 🚀 Local-first advocate | ATProto believer | Lean mindset 💼 Professional: https://sifa.id/p/jehrhardt.dev

i'm really proud of this policy. it's not perfect, but i think it's close to the best that was possible given all the constraints. i'm excited that this will make things easier for mods and reviewers, and hopeful that it will spark change in Rust's governance. blog.rust-lang.org/inside-rust/...

rust-lang/rust is adopting an LLM policy | Inside Rust Blog

Want to follow along with Rust development? Curious how you might get involved? Take a look!

blog.rust-lang.org

Germ now joins Signal and iMessage in bringing you post-quantum cryptography. The journey to quantum-secure cryptography is one we all should be taking. MLS implementers can find our open-source library here. bsky.app/profile/mark...

Mark X (@markmx.bsky.social)

@chenani.bsky.social helped us build a triple ratchet implementation, shadowing iMessage’s PQ3 and Signal’s SPQR to add a PQ ratchet to our existing double ratchet on MLS. Very grateful for his…

bsky.app

Fastmail data can now live primarily in the EU, on servers our own engineers set up in Amsterdam. Current customers can switch in settings; new accounts pick a region at signup. 

 Our CEO Bron's post walks through exactly what lives where.
www.fastmail.com/blog/fastmai... #Fastmail #Email

Fastmail offers EU data region

Choose if you want to make the European Union the primary home for your Fastmail data, on our own secure servers in Amsterdam.

fastmail.com

rule of thumb for RAG/vector search: if you would consider it a bug if it returned less than 100% of the hits, then vector search is not for you, you’re looking for SQL

🤗 Ling-3.0-flash is now also open weighted! - MoE with 124B total & 5.1B active params - Hybrid linear attention for higher efficiency with longer sequences Overall very competitive for its size! Nice work to the Ant Group who worked on this.

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Qwen just announced Qwen3.8-27B along with Qwen3.8-Max! 🔥 Qwen3.8-27B will run locally on 17GB RAM/VRAM setups and is expected to be the best performing model for its size.

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I'm not sure folks have realized just how crazy the second half of 2026 and 2027 will be for global temperatures – on the back of a record-smashing El Niño event. Here is my latest estimate of where both years will end up compared to global temperatures since 1850.

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One of the easiest ways to stand out when writing or creating videos or posting: DONT. USE. AI. Suddenly you sound distinctively different from 80%+ ppl who do and output the same verbose + nicely formatted stuff that feels all the same (+ most ppl stop paying attention midway)

1/ Initial reactions after some hours with this groundbreaking result proving the NP-hardness of poly-approx CVP/NCP: It is most likely correct, but more importantly, it is original, elegant, and beautiful! (Also: it is easy to improve, quantitatively.) openai.com/index/ten-ad...

Ten advances in mathematics and theoretical computer science

OpenAI shares new results on long-standing open problems in mathematics and theoretical computer science, including advances in geometry, cryptography, and complexity.

openai.com

People are wondering: How can a Chinese AI lab rent 20,000 Nvidia GPUs from Alibaba to train its models despite U.S. export restrictions? Answer: Malaysia, which has excess power capacity. Chinese AI labs do not need to train their models inside China.

ByteDance to Build AI Data Center in Malaysia to Circumvent US Chip Restrictions

ByteDance, the Chinese parent company of video platform TikTok, is building computing power in Malaysia using Nvidia's cutting-edge chips.

en.sedaily.com

A senior software engineer identifying as a “creator” working at an e-commerce company sent an AI-written email, asking to recommend their Substack. I checked out a few articles. All are… slop. Stuff that feels like it was output from ChatGPT. It’s all AI. My response:

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