Alexy Khrabrov's notes from PyData Amsterdam 2026, recorded after the trip. The LakeSail team met in person for the first time around Shehab Amin and Santosh Pingale's talk on Sail at Adyen, where Spark jobs that ran out of memory or never finished now run on a Rust engine behind the same PySpark API. Why the warehouse at the NDSM Loods forced Alexy to record his own audio. Christophe Blefari's keynote on the history of analytics, and why nao, his open-source analytics agent, is the user every lakehouse builder should design for. Ritchie Vink tracing the engineering arc of Polars from a better pandas to a company, and why Rust-native distributed data systems strengthen the whole ecosystem. Matt Topol on ADBC adoption, ADBC for DuckDB, and the ADBC Spark driver that lets Sail plug in anywhere Spark Connect is spoken; and Apache Magpie's tools for maintainers facing AI-generated pull requests. Plus the QueryGraph stack Alexy has been building on Sail: Grust graphs, TypeSec policies, LakeCat, Marciana memory, and Pinax.