What is Ruby doing on Rails?
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Why Wasn't Ruby 3 Faster?
I'm seeing a lot of disappointment about the speed of Ruby 3 out there. I think there are a lot of reasons for that, and I think they're worth looking at. So: why wasn't Ruby 3 faster? Did it break its promise? 
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Rails views are sometimes amazing and fast, and at other times, they can have all sorts of issues. If you want to increase confidence over how you handle your views, then this blog post is for you.
Understand what bcrypt is, how it works and its role in Ruby on Rails for authentication.
I hope nobody runs in to a problem where they need the information in this post, but in case you do, I hope this post is helpful.
See, when people talk about Ruby parallelism and concurrency usually the conversation is quickly curtailed by the first person who screams “But the GIL! So there is no parallelism!” and then the room falls silent. In practice the situation is much more nuanced, and gaining a better understanding of the nuances will make your Ruby programs faster, more efficient and let you use less compute.
Blast from the past
Given that we’re halfway through an app w/o an architecture that TDD’s well, should we start TDD now or wait for the next greenfield chance to do it right?
Beyond Ruby
Take control back over your calendar.

TDD purism belongs to the world of dynamic typing.

Repository of the week
Higher-level data structures built on Redis.