Code BEAM

The Schedule is up and @josevalim.bsky.social is joining us with his keynote: Set-Theoretic Types from Scratch + Extended Q&A! 21-22 October, Haarlem and online. Full speaker list in this thread. #CodeBEAMEurope #Elixir #Erlang #Gleam

Thank you to everyone who stopped by our stand. We loved the conversations about what you are building. 🤝 And a final thank you to the @codebeam.bsky.social team for organising another excellent event. 👏 See you next time. 👋

For years we've told each other to let it crash. @expede.wtf closes Code BEAM Europe 2026 on Track 1 with 'Let It Disconnect: A Local-First Future'. #CodeBEAM #LocalFirst

Closing notes on Track 1 now. Stay seated: at 16:45 @expede.wtf gives the last talk of Code BEAM Europe 2026, 'Let It Disconnect: A Local-First Future'. #CodeBEAM

The Gleam Language Update, from the person who started Gleam: @lpil.uk, Track 1, now. Whatever shipped this year, you're about to hear it first-hand. #CodeBEAM #Gleam

"Let it crash" works, right up until it doesn't. Spoorthy Sridhara is on Track 2 with 'Self-Healing Systems and When They Fail'. Possibly the most honest title of the conference. #CodeBEAM #OTP

Yesterday's talk was 'Don't Crash the BEAM'. Rustler's whole promise is the same idea, in Rust. Benedikt Reinartz (Statkraft) is on Track 1 with 'Rustler News and Road to 1.0'. #CodeBEAM #Rust

Last Lightning Talks of the conference, in the Informal Zone right now ⚡ Not filmed, not streamed. If you're in the building, this is the room. #CodeBEAM

Last coffee break of Code BEAM Europe 2026. Then: Benedikt Reinartz on Rustler's road to 1.0 (Track 1), Spoorthy Sridhara on when self-healing systems fail (Track 2), and Lightning Talks in the Informal Zone. #CodeBEAM

Happening now at Code BEAM: Erlang's JIT on ARM32! Luca Succi & @peerstr.bsky.social  on bringing BeamAsm to embedded/IoT hardware, plus live GRiSP2 benchmarks.  #CodeBEAM #Erlang #IoT

Elixir developers have had doctests for years. Lukas Backström from the OTP team is on Track 1 with 'Exploring Doctests in Erlang'. Erlang catching up, or doing it differently? #CodeBEAM #Erlang

Something unexpected is happening in the Informal Zone right now: @elbrujohalcon.bsky.social has taken over the room. #CodeBEAM #BEAM

If AI writes most of the code, does the language still matter, or is it all about the runtime underneath? Iryna Kostiuk is on Track 2 with exactly that question. #CodeBEAM #AI

SAFE, the security audit tool from Erlang Solutions, already speaks Erlang and Elixir. Robert Fiko is on Track 1 with what it took to teach it Gleam: 'Same Runtime, Different Language'. #CodeBEAM #Gleam

Your AI assistant reads untrusted input for a living. @peterullrich.com and @maennchen.dev are on Track 2 with 'Don't Get Pwned by AI Attacks'. Practical, and probably a little uncomfortable. #CodeBEAM #Security

The Informal Zone is getting loud: Joseph Stewart with 'Weird Live Audio Coding: Making Noise with the BEAM'. The title promises weird. We trust it. #CodeBEAM #LiveCoding

'Still Typing Erlang?' is a fair question in 2026. Roberto Aloi, one of the ELP authors, works on Erlang developer experience at WhatsApp, and he's on Track 1 with DevX in the prompt era. #CodeBEAM #Erlang

Day 2 of Code BEAM Europe, and one more thank you to everyone who made these two days possible: @erlangsolutions.bsky.social, EMQ, CloudAMQP, @appsignal.com, @seventhstate.bsky.social, Trifork, @9elements.com, @erlef.org and @ahrefs.bsky.social. #CodeBEAM

Lunch 🍽️ Back at 13:30 with Roberto Aloi on developer experience in the prompt era (Track 1), @peterullrich.com and @maennchen.dev on AI attacks (Track 2), and weird live audio coding in the Informal Zone. #CodeBEAM

Shuffling a list sounds like a solved problem. Raimo Niskanen from the OTP team is on Track 2 with 'Do the List Shuffle', and we suspect it's less simple than it looks. #CodeBEAM #Erlang

Getting Erlang to keep time well enough to make music is harder than it sounds (sorry). @ellyxir.com and Cara Superlativo are generating sound live on Track 1, in a former concert hall, no less. #CodeBEAM #Erlang

Informal Zone: Aaron Cruz with 'Be the Cluster: Raft by Hand, Then in ra'. The title says you're the cluster, so expect to play a node before you see the code. ra is the Raft library behind RabbitMQ's quorum queues. #CodeBEAM #Erlang

A title that sounds worse than it is: 'Understanding Supervision: Killing Your Actors'. Kero van Gelder is on Track 2, explaining supervision by doing the one thing it exists to handle. #CodeBEAM #Gleam

Erik Stenman wrote The BEAM Book, ran Tuesday's tutorial, and is now on Track 1 with 'Structuring Erlang Code with Application-Level Visibility'. If anyone has thought hard about how Erlang code should be laid out, it's him. #CodeBEAM #Erlang

Ever wished you could see your supervision tree instead of imagining it? @guillheu.bsky.social is on Track 2 with 'Asterism: an OTP Visualizer in Gleam'. #CodeBEAM #Gleam

In the Informal Zone: Yutaka Kikuchi and Hideki Takase with 'Giocci Live', offloading computation across the edge in real time. The "Live" is in the title for a reason. #CodeBEAM #Elixir

In-person attendees, have you spotted cool Alchemist Puzzles at Erlang Solutions/Trifork stand? To win them, solve the quiz https://canva.link/yaigcpy7nkk0avz There's a draw today, all the people with 100% correct answers will get a chance to win one of the prizes! #CodeBEAM

Happening now at Code BEAM: Chris Beck on "ATProto on Elixir"! Elixir + Rust scaling ATProto's DataPlane to millions of users on a fraction of the resources. Live demo on stage right now.  #CodeBEAM #Erlang

Coffee break. At 10:50: @peerstr.bsky.social porting Erlang's JIT to ARM32 (Track 1), @guillheu.bsky.social with an OTP visualizer written in Gleam (Track 2), and Giocci Live, edge computing in real time, in the Informal Zone. #CodeBEAM

Keynote on Track 1: @josevalim.bsky.social, creator of Elixir, with 'Set-Theoretic Types from Scratch', built up from first principles, then a long Q&A. If types in Elixir have confused, excited or worried you, this is the room. #CodeBEAM #Elixir

Day 2, Haarlem. First up at 9:10 on Track 1: @josevalim.bsky.social building set-theoretic types from scratch, with an extended Q&A. Bring the type question you've been saving up. #CodeBEAM #Elixir

That's a wrap! Watch the highlights of Day 1 at Code BEAM Europe 2026!

Talks are done for today. Drinks are in the Foyer 🥂 and the hallway track officially takes over. Come say hi, and find that speaker you meant to ask a question. #CodeBEAM

@becca.monster at @codebeam.bsky.social 🔥

Phones out, for once. @samaaron.bsky.social is back on Track 1 for 'The Phone Orchestra', an interactive evening session to close Day 1. Sound on, please. #CodeBEAM #SonicPi

What's next for the Erlang Ecosystem Foundation? @danj3.bsky.social is on Track 1 with 'The Erlang Ecosystem Frontier: Our Work Ahead'. If you've wondered how to get involved, these 20 minutes are for you. #CodeBEAM #EEF

Developers say they hate marketing. Developers also star repos with good READMEs. @kamila-pokoj.bsky.social (Gleam core team, marketing at Erlang Solutions) is on Track 2 with 'Reverse Engineering Marketing for Devs'. #CodeBEAM #DevRel

Lightning Talks in the Informal Zone right now ⚡ They're not filmed or streamed, so whatever gets said in Van Beinum Zaal stays in Van Beinum Zaal. #CodeBEAM