Learn the nuances of Ruby's Process.wait, Process.wait2, and Process.waitall system calls, and how to choose between them based on your use case.
Rewriting a system live, imposter syndrome, and programmer skill obsessions.
Don't let your Ruby subprocesses become zombies!
Perl 6, software as set design, isolated integration tests, and more...
Learn a robust, cross-platform way to throw away unwanted output in Ruby programs.
Learn the twin pillars at the root of the UNIX process-spawning architecture!
Great OOP talks, and the art of avoiding code.
If you're making subprocesses on a UNIX-like OS, you're using fork(). Learn all about using fork() from Ruby.
A few of my favorite non-Gang-of-Four patterns.
"Tell, don't ask" is easy to say, but how do you actually put it into practice?