Anton is an experienced developer, active contributor and big Ruby fan. Apart from his busy working schedule he can often spotted in a gym, or browsing through his collection of spiders, or wondering through the mountains on a travel journey. Feel free to discuss any of those and many other topics with this brilliant person!

I am a long-run ruby and rails developer with rails version upgrade experience from rails 1.x to 5.0. As of now, I probably fixed at least one serious bug in every major rails release and continue doing so... I am still around ruby and rails because I believe in Ukrainian Ruby Community that can be a big chance for a better future for the whole country. Besides ruby I got serious about yoga recently. Feel free to talk with me about that during breaks too.

Bozhidar loves computers in general and programming in particular. His fanatic devotion to Emacs is known world-wide. Bozhidar spends a lot of his time on GitHub, contributing to various Ruby, Clojure and Emacs Lisp projects. Believe it or not, Bozhidar has interests outside computers as well! We won't, however, bore you with those here.

Florian is an active Rubyist and Rustacean from Berlin. He used to co-organise the eurucamp conferences and is member of the Rust community team. Creative approaches FOSS project management is his form of hacking.Growing communities is all about activating untapped potential. Typically, this is done by creating expensive advertisement campaigns or hiring community managers. But this is hard for free and open-source projects: Usually, both money and time are scarce resources. The effects of this are often visible: overworked maintainers, a constantly growing number of open issues and glacial response times. This leads to a spiral: potential helping hands turn away from the project, even if they continue using it. For that reason, thinking about growing community early is important for all projects. This talk is going to present effective, inexpensive and time-saving approaches to tap into community potential for projects of many sizes, collected as part of the Rust community team, the work at Ruby Berlin e.V. and within the Padrino framework. It will also explain base techniques to get creative with community action.

Ruby on Rails developer and team lead in Svitla Systems, OOAD lover, now searching inspiration in functional programming. Elixir is a growing technology which claims to be a Rails-killer, or at least competitor, so my quest for a Holy Grail in programming has lead me here, and who knows what that will end up with?

Technical Lead @icelab. Author and core team member @rom_rb. Co-founder and core team member @dry_rb (main focus on dry-types/struct/validation/logic/web)

Piotr is a hacker scientist: Cheap Science Officer at Rebased, an assistant professor at Warsaw University of Technology and co-maintainer of Bogus and Reek. When not coding he coaches at Rails Girls Warsaw and Rails Girls Summer of Code and organizes Warsaw Ruby Users Group.

Quentin ADAM is the CEO of Clever Cloud: a Platform as a Service company allowing you to run java, scala, ruby, node.js, php, python or go applications, with auto scaling and auto healing features. This position allows him to study lots of applications, code, practice, and extract some talks and advises. Regular speaker at various tech conferences, he’s focused to help developers to deliver quickly and happily good applications.

CTO @Twentify, Rubyist, Crystal Evangelist and Polyglot, Author of Kemal http://kemalcr.com

Sergiy is a passionate programmer with experience in a number of programming languages. From spending a weekend digging in HEX of his car's ECU to solving a puzzle on pure functional Haskell, Sergiy is a man of many talents. He works as lead Ruby dev on Matic, and aims to bring the best in programming into the Ruby ecosystem.

Stas Volovyk is a team lead @ Aejis. Engineer, programmer, aviation enthusiast and passionate about shooting stuff.

Senior Ruby enthusiast. Only coding, only hardcore!

Xavier Noria is an everlasting student and father of the most wonderful girl. An independent Ruby on Rails consultant from Barcelona, Xavier is a member of the Ruby on Rails core team, Ruby Hero, and proud author of Rails Contributors.Using real, selected snippets that Xavier has found while doing open source and consulting, we'll talk about concepts such as idiomatic Ruby, concise code, readable code, and exact code. We'll look at how they apply, and how subjective and social they are. A talk, indeed, with maybe more questions than answers.