📢 Welcome to ar5iv.org Change the "X" in any arXiv article link to the "5" in ar5iv to get a modern HTML5 document. Thread: what is included, why now, and how we hope to merge back into arXiv. #OA #OpenScience #preprints 1/10

There's an interesting discussion going on about fundamentals of distributed and concurrent systems 🤓 Feel free to join🤗 github.com/orgs/replica-i…

Now a bit less philosophical and a bit more concrete: github.com/orgs/replica-i…

Summarized some thoughts related to modeling of distributed systems from the most abstract level: github.com/orgs/replica-i…

Now to thinking about modeling of individual nodes within a distributed system and their interaction 🤔 github.com/orgs/replica-i…

* Sergey Fedorov will share insights from building Replica_IO, exploring how to rethink concurrency and protocol design from first principles—because distributed systems are hard, and getting them right is critical for building safer, simpler decentralized infrastructure.

🦋 Replica_IO is now also on Bluesky! Will be sharing update there, as well as here. Stay tuned! 📡 bsky.app/profile/replic…

📣 A new blog post is out sharing preliminary results of elaborating the idea of reversible deterministic concurrency! We try to make those ideas a little more concrete and apply them to modelling some well-known distributed protocols. Check it out! 👉 replica-io.dev/blog/2025/05/3…

The vouchers I have to Protocol Berg are only valid until tomorrow. Please drop me a message if you'd like to get one 😉

Nothing is decentralized until everything is decentralized ☝️

We are finally back to humanity after v2, and just in time to drop you all a treat before the weekend! The Protocol Berg recordings are now live, thanks to our friends over StreamETH 🖤 Read below to see how you can catch up on all the awesome content from this year’s event👇

Looking forward to sharing some insights into distributed and concurrent programming at Web3 Summit in Berlin next week!

🧵 Sergey Fedorov from Replica_IO broke down sequential vs concurrent thinking. Centralized systems think linearly - Decentralized ones are inherently parallel. “The universe is a closed system — everything else is open.” A powerful metaphor for Web3 architecture.

The recording of my talk at @Web3Summit in Berlin sharing some insights into distributed and concurrent programming is available on YouTube now. This is an extended version of the talk that I gave at Protocol Berg in June. youtu.be/GFYIFLd97DI?si…

I went on a job interview for a Senior SWE role. They asked me about my experience with Kafka. I told them how in “Metamorphosis” someone can lose their worth in others’ eyes the moment they stop being useful. It’s a chilling reminder of how fragile our sense of belonging can