Speaker replacement

Today we have two news, a bad one and a good one. Sadly, Dmytro Shapovalov❤️ won't be able to present. At the same time, we are happy to welcome Mugurel Chirica, a Senior Engineer at Simply Business, who graciously agreed to come and deliver a talk devoted to some practical steps to make a Rails application scalable and speed up its development. For more information, please visit https://rubyc.eu/#speakers