At “Blind Coding Game Jam” table hosted by @tonytonyjan: 🙈 Player couldn’t see the screen 👀 Teammates had no access to the keyboard Teamwork challenges ranged from hello-world to Fibonacci…while @yukihiro_matz mastered some on the fly! 🐇 2025-08-09 #CodeParty #RubyConfTW

At the #Async table led by @ioquatix, they built real-time games with #Falcon server & #Lively framework, and demoed on stage during the free-sharing time🎮 The participants were so into it that Samuel hosted an extra session on Day 3💪 2025-08-09 #CodeParty #RubyConfTW #COSCUP

At the “AI dev tools” table co-hosted by @EtrexKuo & @elct9620, everyone took turns sharing their AI tool use & tips. “Plugging HDMI repeatedly is troublesome.” “Let’s scan the meeting QR code and share screens.” “Genius.” 2025-08-09 #CodeParty #RubyConfTW #COSCUP

The “Metaprogramming with Ruby” table hosted by @okuramasafumi tried building a simplified RSpec clone. Everyone frowned together at the metaprogramming code. 🤨 Matz wandered by with a 車輪餅 and joined in. 2025-08-09 #CodeParty #RubyConfTW #COSCUP

The “mruby table with @yukihiro_matz ” focused on the progress of lightweight Ruby runtimes & IoT ⚙️ Tanaka-san introduced his microcontroller work in mruby/c. Matz peeked at the code running a walking dinosaur via GPIO. 2025-08-09 #CodeParty #RubyConfTW #COSCUP

“From now on, we don't need the safe-navigation `&.` anymore!” “The party... STARTs!” ヽ(´▽` ) ゝ — Kasa, organizer, kicking off the first-ever #CodeParty at RubyConf Taiwan 🐣🎉 with warm greetings from @akihito_uesada, mayor of @rubycitymatsue. #RubyConfTW #COSCUP

The vibe at #CodeParty on #RubyConfTW × #COSCUP 2025 Day 1 🎥

@Envek is talking “Nuances of running Ruby on Kubernetes” #rubyconftw #coscup

@ydah_ is speaking “Joy with 3D Graphics Using Ruby” about Ruby on #opengl #coscup #rubyconftw

Aleksandr Kunin is speaking “Loosing Seat in Concurrency: A tale of Transactions and Locks” #rubyconftw #coscup

@ioquatix is talking “Building, Deploying, and Monitoring Ruby Web Applications with Falcon” #rubyconftw #coscup

@EtrexKuo is talking about “build MCP server with Ruby” #coscup #rubyconftw

#codeparty is ongoing now #rubyconftw #coscup #bof

Today’s last Ruby session: “Why doesn't Ruby have Boolean class?” by @okuramasafumi

@spikeolaf is talking about his first Taiwan experience as beginning of his session “Understanding Ruby Grammar Through Conflicts”

Let’s build a cpu by #ruby Talk by @hachiblog

Professor Tanaka is speaking “From Scripts to Circuits: IoT Applications with mruby/c” #coscup #rubyconftw

@s01 is talking about MLS protocol implementation in Ruby