BEAM There, Done That

Rules that took ~800 lines of Erlang: 40–50 lines in Bondy. Alejandro Ramallo on the new declarative, statically typed BEAM language built on Datalog and CHR. youtu.be/Id-K5UrI1BQ

Erlang handled 50,000 players per machine for Hernán Rivas Acosta's first game server. Now his game loop runs on the BEAM too: Rust, compiled to Wasm, inside an Elixir GenServer. youtu.be/XubYVNbehYc

.@Klarna's BEAM scheduler throttled on Christmas Eve. A batch job took down all three failover nodes. The CEO called @erik_stenman at midnight.
That scar became the BEAM Book. Now he's asking where the AI compute really runs - and who controls it.
youtu.be/afRZmYXwukg

The Navajo Nation observes daylight saving. The Hopi reservation inside the Navajo Nation skips it. A sat nav got @FrancescoC to Cancun an hour late.
@kipcole9 has spent 10 years building the libraries that handle this. Agenda just shipped.
youtu.be/p99SrOmlYLc

@PragTob benchmarked four query variants, deployed the winner, and hit worse production performance. The benchmark had tested the wrong inputs.
That incident is why Benchee has first-class input support -and why most people benchmark wrong.
youtu.be/coID1Kzjgbo