In the keynote presentation titled "Ruby, Community and You," Akira Matsuda discusses the significance of the Ruby programming language and the community surrounding it. Matsuda, visiting Malaysia for the first time, expresses gratitude for the warm welcome and introduces the concept of the Ruby community, inviting attendees to consider their own participation in it.

Key points discussed include:

• Definition of Community: Matsuda emphasizes that being part of the Ruby community is considered to be more about having a positive attitude towards Ruby rather than just technical proficiency. He illustrates this with the term 'Rubyist', defined by the language creator, Matz, to mean someone who enjoys Ruby and promotes it to others.

• Matz's Contribution: He notes that Matz, the founder of Ruby, is still actively involved in its development, but he has expressed that Ruby is no longer just his language; it belongs to the community at large. Matz appreciates the community's role in Ruby's evolution.

• How to Get Involved: Matsuda encourages participation in contributing to Ruby's development, mentioning that while contributing to Ruby historically has been challenging due to its use of Subversion, efforts are underway to transition to GitHub to facilitate easier contributions.

• Ruby on Rails Community: He highlights the Rails community as another vibrant component of the broader Ruby ecosystem, showcasing how Rails defines its community as those contributing to its evolution.

• Social Coding: Matsuda discusses the impact of social coding through platforms like GitHub, highlighting how it connects developers globally and enables collaborative contributions. He shares examples of his own projects and mentions that contributions often come from people he has never met in person.

• Organizing Community Events: He is involved in organizing events like Ruby conferences in Japan, aiming not just for technical discussions but also for building connections among Ruby users worldwide.

• Encouragement to Code: The keynote concludes with a motivational message for attendees to express themselves through coding in Ruby. Matsuda believes that Ruby's readability makes it an excellent choice for communication.

Overall, he invites everyone, especially those present in Malaysia, to join the Ruby community and share their coding experiences. The session is followed by a Q&A, providing further insights into the importance of community in open-source development and contributions.

Attendees leave with a newfound sense of belonging to the Ruby community, encouraged to participate and contribute to its growth.