Kamil Lelonek

Frontend performance tips for web developers
How to start using Arrays in Rails with PostgreSQL
How to persist hashes in Rails applications with PostgreSQL
How to start using UUID in ActiveRecord with PostgreSQL
Concurrency patterns in RubyMotion
SSH authentication in 4 flavors
RubyMotion app with Facebook SDK
Ruby background processes with upstart user jobs
Hidden features of Ruby you may not know about
Code style matters
Developer matters
From Rails to RubyMotion: basic toolkit
Create, run and manage your Ruby background processes with upstart
Real-time Web Apps