Curated development tutorials from top sources. Filter by language.
One Bad Monkey Spoils The Bunch! This Ruby meme is a variation on the common expression "One Bad Apple Spoils The Bunch" that is noting how introdu
Rails disclosed CVE-2026-66066 this week: a possible arbitrary file read and remote code execution in Active Storage variant processing. If your app a
A few weeks ago I needed to check something in the Action Mailer docs, just a quick lookup. I ended up spending much more time there than expected and
Тест автоматизации
Sentry and Honeybadger are great — until you don't want another vendor, another bill, or exception data leaving your infrastructure. ErrorTrack is a
"The Embarrassing Ruby/Rails Subreddit Chronicles" becomes "The Embarrassing Ruby/Rails Community Chronicles" as it expands to cover embarrasing inter
One of the biggest mindset shifts I've had while learning Go came when I reached functions and methods. As a Ruby developer, almost everything revolv
I frequently see comments that 'unless' and 'until' are difficult to understand. I've also heard that it's prohibited in tools like rubocop. This is a
Four ways to orchestrate business logic in Ruby. One map to find yours. You're building something that involves multiple steps. Charge a ca
Over the past few years, the Ruby on Rails ecosystem has seen a resurgence of server-side UI development. Thanks to projects like Phlex, Hotwire, and
Nos últimos anos, o ecossistema Ruby on Rails voltou a mostrar toda a sua força no desenvolvimento de interfaces server-side. Com ferramentas como Phl
(Translated from the Japanese article.) This is a quiz about Ruby's Bundler! Add 8 characters to the following Gemfile so that bundle install fails
Standard RSpec assertions expect exact values: expect(user.name).to eq("Alice"). LLMs break that contract immediately. Run a prompt three times at te
One of the first differences I noticed when learning Go was how seriously it takes types. Coming from Ruby. I rarely think about their types because
July 2004. A guy named DHH pulls a framework out of a project management tool called Basecamp and calls it Ruby on Rails. Nobody in that room could
MyCase Immigration / Docketwise Integration: 0: Why We Synced · 1: Before/After · 2: OAuth2 · 3: Sync vs Migration · 4: Sync Boundary · 5: Family Grap
I've written Ruby for years. Recently I sat down and worked through method arguments properly — not "I know what *args does", but end to end, every fo
Your AI agent is not equally smart everywhere. Same model, same prompt, same day, and it will code like a senior in one codebase and like a confident
On June 3rd, Bundler 4.0.13 shipped a feature called cooldown. The release post described the problem it solves like this: "an account is compromised,
When I published a little gem for conditional CSS classes two years ago, the first comment was Adrien Poly asking the obvious thing: "What is the main