Phlex Turbo Layouts

Code snippet at shows how to control Turbo meta tags in the head, and in the page, from one place in a Phlex view.

Mastering Iteration in Ruby: for, each, while, until

Creating Custom Enumerable Methods with Ruby Loops

Rails Dashboards that scale – with SQL and dry-struct

Crunch data with SQL, return JSON, wrap it in type-safe DryStructs, and swap in Faker or plug into a data warehouse. Read more

OpenAI and ruby? Yes, we can!

Curious how artificial intelligence and Ruby can work together? Read more

Making Logs Clickable in Rails

I would like to introduce you to my short story about the new Ruby on Rails gem. https://medium.com/@kasvit93/making-logs-clickable-in-rails-599eff931b8f And link to the gem directly. https://github.com/Kasvit/clickable_logger

Adding Password Confirmation to Rails 8 Authentication

Understanding Ruby on Rails Controllers

🚀 New Article: Mastering Ruby’s zip Method

If you work with arrays in Ruby, there’s one method you must have in your toolbox: zip. I just published a quick deep dive on how zip can help you: Read more

Hotwire components that refresh themselves

Using ViewComponents that know how to refresh themselves via turbo_streams is a powerful pattern to build complex flows with Hotwire Read more

Dependent Select

In this episode, we explore how to enhance standard select fields using a JavaScript library together with StimulusJS to create more dynamic and responsive dropdowns. The focus is on adding search functionality, handling dependent selections, and integrating smoothly with modern frontend setups.

Breaking the Singleton: How to Reload Ruby Singleton Instance

Ruby’s Singleton module has an undocumented method that lets you reload instances. Here’s how I used it to fix my Rails tests -

Automatically Splitting Domains by Clustering the Active Record Relationship Graph

Capture Browser Console Logs in Rails System Tests with Capybara and Cuprite

Capturing browser console.log output in Rails system tests isn’t obvious with Capybara + Cuprite - especially when debugging timing issues that only show up at full speed. Here’s how to do it

Anyone interested in a SF Ruby vibe coding hackathon this month?

SF Ruby vibe coding hackathon at Sentry HQ is just 2 weeks away! The $3,000 prize is sponsored by Fly.io, Continue, Evil Martians. Rails is known as the go-to tool for solo devs. Does AI take it to the next level? RSVP here.

Open file with source code from a crash page

- with this gem, you can open a file in an editor directly from the crash page. Also, plan to make a PR into Rails, hope it will be merged.

🚀 Clean Ruby. Powerful Hash Transformations.

Ever needed to convert an array into a hash without messy loops? Ruby gives us two elegant tools for that: index_by and index_with. Read more

Mastering Ruby’s String Split(): with Examples

Making Sure FactoryBot Builds Without Creating

An RSpec spec to verify FactoryBot.build doesn’t interact with the DB:

Active Record adds support for deprecating associations

Rails 8 lets you deprecate Active Record associations, making it easier to phase them out gradually while keeping them around to safely track and remove their usage. Read more

🔍 El que busca, encuentra — and Ruby proves it.

In my latest article, I explore how Ruby handles search operations across arrays, hashes, and other collections. From expressive methods like .find, .select, and .grep, to efficient algorithms like .bsearch, Ruby empowers developers to write clear and intentional code when looking for what matters. Read more

Ruby Lambdas Functions

Ruby Lambdas

Think before you cache

Explore caching strategies and tools in Rails, from low-level manual caching to popular tools and gems that make caching easier. We’ll learn how to identify effective caching opportunities and avoid common pitfalls. Read more

OasRails: From a Rails Engine to a Framework-Agnostic Solution

Ruby is not just Rails, which is why I split my gem for API documentation, and now it could work with multiple frameworks. Read more

🔧 Tired of deeply nested routes in Rails?

If you’re working with complex model relationships in Rails, shallow: true might be the clean solution you’re looking for. In my latest article, I explore how this simple option helps reduce route depth, simplify controller logic, and keep your code RESTful and maintainable — without losing model structure. Read more

🧾 New Post: Making Accessible PDFs with Ruby (PAC 2024 Edition)

Generating PDF/UA-compliant PDFs? Not as easy as flipping a flag. In this post, I document the battle with PAC 2024, Chrome quirks, and missing metadata—and how I used (and built) Ruby tools to fix it. Read more