Ruby Ruby Ruby Ruby
Ruby Ruby Ruby Ruby
Ruby Ruby


14.11.2023 @ Browar Nowa Wytwórnia, Fabryczna 13

KRUG #3 / 2023 powered by Zendesk

KRUG #1 / 2023 powered by Upside

Barka, Podgórska 16

Hello Ruby Enthusiasts!

It's time for the next KRUG meetup!

This time, we will have two technical talks.

Standard KRUG policies apply - branding and recruitment is limited to sponsor only! ;)

KRUG #1/2023 is powered by Upside

[Upside]( is a software development consultancy focused on digital commerce and a core maintainer of [Spree Commerce](, a leading Ruby-based open-source ecommerce framework. They operate globally, with offices in Kraków and Berlin. Their fast-growing team consists of over 20 specialists sharing knowledge about Ruby, but that's not all. Meet them during this year’s first KRUG!

**Meetup details**: KRUG #1/2023 -[masked] @Barka 18:30


* 18:30 - Opening - A Few Words from Organizers
* 18:45 - Karol Szuster - Just in time for 3.2 - Ruby's journey from AST walker to JIT compiler
* 19:15 - Q&A session
* 19:30 - Karol Musur - Jak zostać serwerem HTTP?
* 20:00 - Q&A session
* 20:15 - Networking

Useful links:

KRUG meetup page ( )
KRUG Facebook page ( )
KRUG Github organization page ( )


Would you like to share your concepts or dilemmas on one of our KRUG events? Or maybe you are up for sponsoring one of them? If your answer is yes to any of the two questions, drop us a message at