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We want to make Inertia.js more popular within the Rails community, so we've started a project to provide both Rails-specific community docs and a set of tools for simply integrating Inertia into Rails apps.

It’s here, the future of masonry layouts on the web!

We’ve been running product design sprints for over a decade. Now Claude and Claude Code are helping us prototype faster than ever—without sacrificing quality. Here’s how we built a working prototype in hours, not days.

My name is Taras Kloba, Chief Partner Architect at Microsoft. This blog captures my journey through data engineering, certifications, and technology insights.

Stop storing duplicate files. Learn how to detect identical uploads and reuse existing blobs to save storage costs and speed up uploads.

Skip the SaaS subscription. Rails 8.2's credentials system is all you need for feature flags - version controlled, environment-overridable, and free.

Set up a persistent HTTPS subdomain on your own domain for local Rails development. Perfect for testing webhooks, OAuth callbacks, and sharing work in progress.

Comparing token efficiency across 19 popular programming languages using RosettaCode data - from Clojure to C, there's a 2.6x difference.

Learn how to use Rails Action Cable without Redis! Follow along and build a Solid Cable application with real-time features.

My journey on how to build a side project and not quit until it pans out

Rails 8.2 adds Rails.app.creds to provide a unified API that checks environment variables first, then falls back to encrypted credentials.

Spoiler, the product wasn’t the problem. It was the customer experience. This is the mindset shift that will save you money, and keep your revenue recurring.

The new bearer_token method on the Request object is a nice addition to Rails. It removes boilerplate code and simplifies bearer token extraction. All Rails apps can now access bearer tokens the same way without having to write custom token extraction logic every time and worrying about edge cases.

Tick tock… Act now, or this mess might blow up in your face.

Ruby at the Front Line of Disaster Prevention December 26, 2025 How Tokyo Gas Uses Ruby to Protect Millions of People During Earthquakes Based on the RubyWorld Conference 2025 presentation by Maika…

Tricks to work around nested form elements, for Rails

My digital garden has an entire section with copy/paste code snippets and boilerplates. I use these nearly every day when writing code. It helps me start working faster, and saves me from having to rewrite the same code over-and-over again. I created web component boilerplate years ago. Since then, my approach to writing web component has changed quite a bit. I just updated the boilerplate, adding everything I’ve learned from working on Kelp UI.

Let’s build a fun snow effect for your Rails app using a single Stimulus controller.

Practical ways to make your Hotwire Native app feel right at home on iOS and Android.

Organizing tests for readability.

Upgrading the default data-turbo-confirm with a beautiful, native HTML dialog with animations

What is a sequential scan vs index scan vs parallel scan .... and what is a bitmap heap scan? Postgres scan types explained and diagrammed.

The Fizzy application is a new play on Kanban board and project management. It has a comprehensive test suite focused mostly on unit and integration tests, althought other types of test are also present. The test suite is well-organized and follows Rails conventions with some application-specific patterns for multi-tenancy and UUID handling. Can we find more than that?

The new LLM world is very exciting, and I try to experiment with the new tools when I can. This includes building agentic applications, one of which is my personal accounting and invoicing tool - that I wrote about previously As part of that effort I started experimenting with RubyLLM to have some view into items in my system. And while I have used a neat pattern for referencing objects in the application from the tool calls - the Rails Global ID system - it turned out to be quite treacherous. So, let’s have a look at where GlobalID may bite you, and examine alternatives and tweaks we can do. What are Rails GIDs? The Rails global IDs (“GIDs”) are string handles to a particular model in a Rails application. Think of it like a model URL. They usually have the form of gid://awesome-app/Post/32. That comprises: The name of your app (roughly what you passed in when doing rails new) The class name of the model The primary key of the model You can grab a model in your application and get a global ID for it: moneymaker(dev):001> Invoice.last.to_global_id Invoice Load (0.3ms) SELECT "invoices".* FROM "invoices" ORDER BY "invoices"."id" DESC LIMIT 1 /*application='Moneymaker'*/ => #<GlobalID:0x00000001415978a0 @uri=#<URI::GID gid://moneymaker/Invoice/161>> Rails uses those GIDs primarily in ActiveJob serialization. When you do DebitFundsJob.perform_later(customer) where the customer is your Customer model object which is stored in the DB, ActiveJob won’t serialize its attributes but instead serialize it as a “handle” - the global ID. When your job gets deserialized from the queue, the global ID is going to get resolved into a SELECT and your perform method will get the resulting Customer model as argument. All very neat. And dangerous, sometimes - once LLMs become involved.

Accidentally committed secrets to Git? Learn how to safely and permanently remove sensitive data from your Git history using git-filter-repo — the modern,...