Notes from the first Rust AI meetup in Europe, at Adyen
Alexy Khrabrov's recollection of the first Rust AI meetup in Europe, held at Adyen in Amsterdam on September 9, 2026, the night before PyData. How Adyen, processing a trillion dollars a year, found Sail on its own when Spark jobs ran out of memory, and why a meetup organizer with thousands of people in his Bay Area ecosystem has to start over in a new city: co-hosting with AI Foundry, restoring the 2018 Rethink Trust attendee list with Claude and Codex from Gmail and Drive, and holding the event through a nationwide Dutch transportation strike. Zemin Piao's talk on evolving Spark at Adyen with a single URL change; Shehab Amin and Heran Lin, LakeSail's co-founders, presenting together for the first time; Robin Everaars on digital sovereignty and putting Sail to work for the Dutch Ministry of Defence. Why the meetup is about fast, AI-native foundations under Python APIs, whether Rust, C++, Zig, or OCaml, and never the JVM: Amdahl's law always wins.