Bernard Banta

Finplus CTO & co-founder. African Ruby Community Chair. 14+ yrs in tech, solving financial exclusion problem.
Africa tech innovator & speaker.

Sanarei Protocol: Offline Web Browsing with Ruby

Sanarei: Offline web browsing. By leveraging lean design & USSD, it provides seamless offline web interactions without traditional connectivity.

Chris Hasinski

Image Vector Search

An AI model in my app? No APIs, no Python and no arcane knowledge! A demo on how to build an ONNX-powered unlabeled image recognition with just Ruby.

Hanami, Dry RB and ROM project lead.

What I Talk About When I Talk About Ruby

Our path to a more diverse Ruby, and the rewards from the journey.

KEYNOTE
SPEAKER

Roman Samoilov

Ruby developer, mentor, and author of the Rage framework; passionate about performance, simplicity, and sharing knowledge.

Modernising Ruby Systems
with Rage

Discover the story behind the Rage framework: the challenges it solves for Ruby developers and its impact on real-world systems.

Ismael Celis

Web developer since 2001, formerly at Thoughtbot London, currently consulting. Background in e-commerce and APIs. Fan of diagram-driven-development.

Event-sourced mental models in Ruby

I'll show how Event Sourcing and Ruby can provide a cohesive programming model where auditable data, durable workflows and reactive UIs are the default.

Gavin Morrice

Objects talking to objects

An exploration of what it means to think in OOP, where process lives, and how to keep complex systems robust, scalable, and flexible.

Christoph Lipautz

A Framework for Tech. Debt

This talk reveals a framework to tackle technical debt, clear roadblocks, and boost innovation. Learn practical steps to conquer your Ruby legacy!

Youssef Boulkaid

Failed to build gem native extension

This talk demystifies concepts such as native extensions, C Makefiles and compiler flags so you can understand this dreaded error and how to solve it!

Hans Schnedlitz

Fresh Features, Julienne Cut

Cooking and software engineering have more in common than you think. For one, both involve cutting things to pieces! In cooking, we slice veggies. In software, we dice features. In this talk, we'll learn how to ship faster by breaking extensive features into manageable chunks.

Cristian Planas

Cristian Planas has 15 years of Rails expertise, from startup CTO to big company Tech Lead. His focus is on scalability and performance issues.

Full Circle: How Modern Ruby Powers the Re-integration of High-Speed Microservices into Rails

This talk shows how the modern Ruby ecosystems can reintroduce microservices into monoliths, reversing older splits spurred by C-Ruby's constraints.

Frederick Cheung

What software engineers can learn from the Chernobyl disaster

The Chernobyl disaster sounds remote, but the incredible events around it are full of insights about the everyday challenges we face as developers.

Jônatas Davi Paganini

Deep dive into 
the timescaledb gem

TimescaleDB gem: The Ruby wrapper for hypertables, automated partitioning, continuous aggregations, and time-bucket optimization in Rails apps.

Jess Sullivan

ActiveRecord Unveiled: Mastering Rails’ ORM

ActiveRecord powers Rails' database magic — but what happens behind the scenes? This talk unpacks how Rails' ORM maps data, revealing the key mechanisms at work.

Adam Piotrowski

CTO demoted to CEO. Passionate about sailing, plays Magic: The Gathering and basketball as a hobby. Loves meeting open-minded people and good jokes.

It is not so bad, after all.

It's easy to complain about your project and envy others for the technology they use or the clients they work with. But let's talk about the funny pathologies of the industry, the weird f*ckups — just so I can remind you that the grass is always greener in the neighbor's courtyard, and your project might not be so bad after all :)

Steven R. Baker

Exploring Expressiveness: Creating DSLs in Ruby

Ruby's expressiveness, dynamic features, and even cultural norms make it especially well suited for crafting DSLs. We'll explore how.

Michał Łęcicki

More Ruby, less Rails: rediscover the beauty of Ruby

I will cover the basic Ruby features and unfamiliar topics, such as Ruby refinements. Be prepared for some eye-opening insights from the Ruby documentation!

Chikahiro Tokoro

Is the monolith a problem?

The monolith often gets blamed and the microservices praised—but is that fair? Let’s dig into the real problem and explore a solution.

Katie Miller

The Boring Bits Bite Back

Tech Debt is talked about a lot. Sometimes the debt that builds up comes from the most boring but most crucial areas. Knowing about the traps and keeping those boring parts truly boring can be hugely beneficial. Don't get sidelined from building features that differentiate.

Organizer at EuRuKo 2025

Latvian Ruby community

Malmö Ruby Brigade

Amsterdam.rb