KRUG #4 2025

Łukasz Mendelowski
Karol Topolski

Big Thanks!

• Supporting this event
• Hosting us in this fantastic venue

Hiring! Join their team!

Big Thanks!

• Supporting this event
• Hosting us in this fantastic venue

Support at 4 events in the last 2 years!

Some numbers from the last 2 years

• 9 meetups (including this one)
• 25+ attendees at every meetup
• 3 meetups with over 50 attendees
• 1 meetup with around 100 attendees
• 19 speakers / 20 presentations
• 1 event without any presentation, just networking
  (still 30+ attendees)

All thanks to you!

Agenda

• Dependency Tax: What We’re Learning about Managing Gem Upgrades
  Thomas Countz
• Decider Pattern
  Jan Dudulski
• From PostgreSQL to SQLite in Rails: Our Migration Journey, Challenges, and Lasting Trade-Offs
  Wojtek Wrona
• Build Mobile Apps the Rails Way
  Sebastian Tekieli
• Networking + after-party

Sponsorship

• We're community driven and we do this non-profit, so we appreciate any help
• If you want to lend a hand, contact us at contact@krug.org.pl

More details will be provided once you contact us

CALL FOR PAPERS

• We're always looking for speakers from the community
• If you want to give a presentation, contact us at contact@krug.org.pl

You might be invited to speak at other Ruby User Groups

Next KRUG

• December, 2nd 2025
• The last one this year!
• Mark your calendars!

Enjoy the evening with us!