The title is pure clickbait - it doesn't link to an article with a matching title.<p>It links to an online ruby textbook, last updated 2 years ago according to the gitlab repo.
As a long time Ruby developer the only thing about Ruby that I wish would die is people declaring 'Is Ruby dead?/Ruby is dead/Ruby isn't dead'!
What a fantastic source of information, especially the different design patterns
<a href="https://i-love-ruby.gitlab.io/book.html#_design_patterns" rel="nofollow">https://i-love-ruby.gitlab.io/book.html#_design_patterns</a>