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All articles and discussions should be about the Ruby programming language and related frameworks and technologies like Rails, Hanami, Sinatra etc. Please also add the relevant library tags when making a post.

Questions are encouraged! Including the #help tag will make them easier to find.

Ruby is an open-source dynamic object-oriented interpreted language that combines the good bits from Perl, Smalltalk, and Lisp. It supports multiple programming paradigms including functional, object-oriented, and imperative.

Ruby was initially conceived on February 24, 1993, by Yukihiro Matsumoto ('Matz') and version 1.0 was released in 1996

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Jul 25

Learning Go as a Ruby Developer # 2: Variables, Constants, and Why Go Doesn't Trust You

#go #ruby #rails #programming

3 min read

Aug 4

One Rails request, one event: production context for coding agents

#rails #ruby #opensource #observability

7 min read

Aug 3

RSpec Email Testing Without MailCatcher

#ruby #rails #rspec #testing

5 min read

Jun 30

Understanding Rack #1 : Notes from Rebuilding Rails by Noah Gibbs

#backend #ruby #tutorial #webdev

2 min read

Aug 3

How to Remember Namespaces

#programming #learning #tutorial #ruby

2 min read

Jul 31

Kubernetes earned its security badge in 2017 and never came back

#opensource #security #devops #ruby

16 min read

christine

Jul 29

Patch Your Rails: Active Storage CVE-2026-66066

#ruby #rails #security #activestorage

2 min read

Dane Wu

Jun 28

One Notification Email Made Our Checkout API 3 Seconds Slower

#rails #performance #ruby #sidekiq

5 min read

Jun 23

Applying some Rage to Discourse, Mastodon, and GitLab

#ruby

4 min read

Jul 27

[Ruby] How to Truly Understand unless and until

#programming #ruby #coding #tutorial

2 min read

Jul 26

Ruby Reactor vs dry-transaction vs Trailblazer: Choosing a Ruby Workflow Library in 2026

#ruby #rails #architecture #sidekiq

12 min read

Dane Wu

Jun 26

ActiveRecord: You Wanted a Number, but Loaded 500,000 Rows Into Memory

#rails #performance #database #ruby

6 min read

Jun 24

The Modular Monolith in Ruby on Rails

#ruby #rails #monolith #architecture

4 min read

Figsy

Jul 22

Four things about Ruby method arguments that still catch experienced developers

#ruby #rails #ai #metaprogramming

2 min read

Jun 18

Stop Guessing Between .count, .length, and .size in Rails

#rails #ruby #performance #webdev

3 min read

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