Keynote speaker by morning, saxophonist by night: @chadfowler closed day two at the piano and on a saxophone from David S. Ware's estate — with a Vienna story 30 years in the making 🎷 youtu.be/PCoSQgjFcWE

A conference talk that's also a clarinet duet 🎶 Dalma Boros & Jess Sullivan on saying yes to a surf trip with strangers — and everything that followed: a book club, hallway.party, and a first CFP that became this talk. youtu.be/tYkvHE_j-vI

Is #Ruby the best language for building AI web apps? @paolino , creator of RubyLLM, makes the case: LangChain vs RubyLLM side by side, and zero to a streaming #Rails chat UI in a two-minute live demo. youtu.be/t1XAy8HKvnY

15 years of #Rails + DDD — and why those lessons matter more than ever now that AI agents write code. @andrzejkrzywda on small read models, domains & processes, kept honest by Packwerk, RuboCop & Mutant. youtu.be/zewTY3J42DU

Five lightning talks, five minutes each, one clap-off rule ⚡ @chikahirotokoro , @lreszke, @callmesangio, @RadanSkoric & @pragdave on OSS strategy, event sourcing, a lovable URL shortener, a Hotwire inspector, and picjs. youtu.be/tii5S9vq1eU

A quiet moment from day two: pianist Iman Jahić Hošić invited the room to slow down with a two-piece set at the grand piano of Das MuTh 🎹 youtu.be/0KaWnFykEv4 #RubyConfAT #Vienna

"You're not writing Ruby right now. You're writing C++ with a Ruby syntax." @pragdave closed #RubyConfAT 2026 with a challenge: classes are evil, your job class is just a function, and ActiveRecord::Base's 834 methods are not an "is-a" relationship. ▶️ youtu.be/hC943MiL0lg

He deleted his slides an hour before going on stage. It got better from there 🎤 @bbatsov : 14 years of RuboCop, 330 releases, zero breaking changes since 1.0 — and Rubydex integration that makes it "suddenly, magically smarter." Also: many hot takes. youtu.be/h_NazJbUBPA

An event bus is just a mutex, a queue, and a thread. The rest is discipline. Ljubomir Marković at #RubyConfAT 2026: from a naive bus in a few lines of #Ruby to TCB, a gem that fits your whole domain in one file — demoed on a live drum sequencer 🥁 ▶️ youtu.be/bFGcJ5kOrOc

What if your frontend was just... #Ruby? @AndyObtiva at #RubyConfAT 2026 on Glimmer DSL for Web — real frontend development in Ruby, no JavaScript, no backend tricks. A React component that took 1.5 months rebuilt in 1.5 days. ▶️ youtu.be/qTukq5AcSK0