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Edition three

Friendly.rb Conf 2025

  • Two attendees smiling during a break at Friendly.rb Conf 2025
    Break-time smiles
  • Attendees taking a selfie at the Friendly.rb 2025 coffee corner
    Coffee
  • The Friendly.rb Conf 2025 venue, a theatre hall with rows of teal seats under stage lights
    Theatre

With a focus on community, we kept it cozy with 100-ish attendees and some of the best well-known and up-and-coming speakers.

Two breezy, friendly and inclusive single-track days, followed by a mountain trip for the community on day three.

September 10–11, 2025 · Bucharest, Romania

View agenda Photo gallery
Speakers
17
Attendees
100-ish
Days of talks
2

Watch

Highlights

Play video: Friendly.rb Conf 2025

Agenda

Two Days of Talks and Community

Two days of talks, plus a walking tour to learn a bit of history too. Bucharest, once called "Little Paris", has a fantastic blend of pre-war, interwar and communist architecture.

Day 1

Wednesday, September 10

Talks & community 9 talks

  1. 09:00Registration
  2. 10:00Opening

  3. Great Developers Do Sales, Marketing and Support

    Jonathan Markwell

    Watch Great Developers Do Sales, Marketing and Support on YouTube (opens in a new tab)

  4. Starting your own SaaS

    Michael Koper

    Watch Starting your own SaaS on YouTube (opens in a new tab)

  5. Rails on SQLite: exciting new ways to cause outages

    André Arko

    Watch Rails on SQLite: exciting new ways to cause outages on YouTube (opens in a new tab)

  6. From imposter to influencer

    Naijeria Toweett

    Watch From imposter to influencer on YouTube (opens in a new tab)
  7. 13:00Lunch break 🥗

  8. 15:00

    Ruby+AI Tech Landscape 2025: A Survey

    Obie Fernandez

    Watch Ruby+AI Tech Landscape 2025: A Survey on YouTube (opens in a new tab)

  9. Let's train a model

    Chris Hasiński

    Watch Let's train a model on YouTube (opens in a new tab)

  10. Security in the age of AI

    Greg Molnar

    Watch Security in the age of AI on YouTube (opens in a new tab)

  11. Why doesn't Ruby have a Boolean class?

    Okura Masafumi

    Watch Why doesn't Ruby have a Boolean class? on YouTube (opens in a new tab)

  12. Back to simplicity

    Jan Dudulski

    Watch Back to simplicity on YouTube (opens in a new tab)
  13. 18:30Guided Bucharest Walking Tour
  14. 20:00Afterparty 🍻 at Fire Club

Day 2

Thursday, September 11

Talks & community 6 talks

  1. 10:00

    Versatility as a technologist

    Carmen Huidobro

    Watch Versatility as a technologist on YouTube (opens in a new tab)

  2. Counter-Strike, Rails, and Building Performant Software

    Victor Motogna

    Watch Counter-Strike, Rails, and Building Performant Software on YouTube (opens in a new tab)
  3. Share your Ruby passion project 🙌
  4. Rails SaaS panel

  5. Poly-table Inheritance

    Nicolas Erlichman

    Watch Poly-table Inheritance on YouTube (opens in a new tab)
  6. 13:00Lunch break 🥗

  7. 15:00

    Code is writing, know your reader

    Dan Singerman

    Watch Code is writing, know your reader on YouTube (opens in a new tab)
  8. ✨Game show✨ by Jakob Cosoroabă

  9. Abstractions: Friend, Foe, or Frenemy?

    Abiodun Olowode

    Watch Abstractions: Friend, Foe, or Frenemy? on YouTube (opens in a new tab)

  10. Learning to consult, learning to live

    Irina Nazarova

    Watch Learning to consult, learning to live on YouTube (opens in a new tab)
  11. 18:30Closing
  12. 18:30–19:00🍻 Drinks at Ironic Taproom

Day 3

Friday, September 12

Outdoor trip

  1. 09:20Train ride to the mountains
Attendees cheering on a forest road during the Friday mountain trip

Watch all 2025 talks on YouTube (opens in a new tab)

Speakers

We Had Amazing Speakers, Really

17 speakers with really great stories to tell.

Events

Friendly Experiences Beyond the Talks

From playful competitions to cozy corners, the program beyond the talks stayed welcoming and collaborative.

Attendees coding on laptops at a table in the SupeRails Hack Space at Friendly.rb 2025

SupeRails Hack Space

A dedicated area for pairing, experimenting and turning ideas into prototypes.

The Avo admin panel showing a projects table

Avo Dev Booth

Attendees curious about Avo got a free onboarding with Paul, one of the core maintainers.

Outdoor

Let's Stretch Our Legs

We took a train ride to the mountains together. Friendly.rb is part of the Ruby Triathlon tradition.

Friendly.rb attendees posing as a group in front of the Bucegi mountains Hiking with the Friendly.rb community on the Friday trip Friendly.rb attendees posing on a mountain summit on the Friday trip Attendees cheering on a forest road during the Friday mountain trip

Community

Ruby Developers from 23 Countries

  • Romania Host country, Bucharest 2025
  • Brazil
  • Bulgaria
  • Cyprus
  • Finland
  • France
  • Germany
  • Greece
  • India
  • Italy
  • Kenya
  • Lithuania
  • Netherlands
  • Nigeria
  • Norway
  • Poland
  • Portugal
  • Spain
  • Switzerland
  • Türkiye
  • Ukraine
  • United Kingdom
  • United States

Sponsors

Sponsored by the Community

Thank you to everyone who made Friendly.rb 2025 possible.

Ruby Sponsors

(we love you)

Gold Sponsors

(thank you, thank you, thank you!)

Community Sponsors

(proudly helping the community)

Organisers

Community Partners