Discover the latest articles, tutorials, and insights from the Ruby and Rails ecosystem.
1653 articlesUtility gem for RSpec to forbid mocking methods on objects/classes/modules, evaluated at test runtime: https://lovro-bikic.github.io/rspec-mockbidden/
Did you know that llm.rb is the most capable AI runtime in Ruby right now? It can do things other libraries just can’t, and it can do those things tod...
Turning a Rails App into an Android App: Testing Hotwire Native Recently I wanted to test…
I released my first Ruby gem: llm_cost_tracker.
Very often I find myself talking to developers who are incredibly confused by the JavaScript…
llm.rb has been released. Notable features in this release are Sequel and ActiveRecord support. Turn any ActiveRecord model into an LLM-capable model....
https://rubystacknews.com/2026/01/09/ruby-can-draw-cities-now/
When you are launching a new SaaS, getting your first users is the hardest part. One of the best ways…
https://rubystacknews.com/2026/04/15/rubykaigi-2026-a-reminder-of-what-innovation-actually-looks-like/
April 15, 2026 Scan to try 🎯 Live Demo Available Introducing MapView Render beautiful, production-ready maps directly from your Ruby backend. No exter...
#796 — April 16, 2026 Read on the Web Ruby Weekly TruffleRuby 34: The Fastest Ruby 3.4 Implementation? — TruffleRuby is a high-performance Ruby built...
If you write Ruby, you will eventually get curious about Elixir. The creator of Elixir, José Valim,…
https://rubystacknews.com/2026/04/15/create-qr-codes-from-scratch-with-ruby-ruby-libgd-and-rqrcode/
April 15, 2026 🚀 See the LIVE DEMO in action MapView Render maps directly from your backend no external APIs required. Fast, controlled, and productio...
Sometimes I find myself starting a new Rails project, and almost immediately, I hit a wall: User…
“Oh Ruby, you’re the most elegant and beautiful language ever! I just love you so much…” https://andymaleh.blogspot.com/2026/04/ruby-memes-2026-04-14-...
Earlier this year I was freaked out about AI. I’ve spent the months since using it constantly, on every project, at every stage. I expected to feel re...
We’re collaborating with Open Source maintainers to bring their project discussions to the forum.
Learn how to implement the Singleton pattern in Ruby: built-in module, manual approach, thread safety, the class variable trap, and dependency injecti...
https://rubystacknews.com/2026/04/13/building-mapview-architecture-ci-cd-and-production-deployment-on-railway/
April 13, 2026 Introduction MapView is a server-side map rendering engine for Rails that generates high-quality geographic visualizations without exte...
Solo founders fail for a completely preventable reason. It’s not because their idea was bad, and it’s…
More than 8 months later, I finally managed to put some thoughts about the passing of my dear friend Piotr into a post: Remembering Piotr “chastell” S...
https://rubystacknews.com/2026/04/12/mapview-server-side-map-rendering-for-rails/
April 12, 2026 After an extensive development journey, MapView has arrived: a powerful API for generating map images directly from your Ruby server. W...
Late last year, the Aha! Develop team added support for team line-level reporting. During a team demo in the run-up to the release, we discovered one ...
We are fully in the era of autonomous coding. If you use tools like Cursor, Windsurf, or Copilot…
There are Rails applications that run incredibly fast on a developer’s laptop, but the moment they…
This post introduces ractor_queue v0.1.0, a bounded, lock-free, Multi-Producer Multi-Consumer (MPMC) queue that is always Ractor.shareable?. It is the...
llm.rb is a runtime for building AI systems that integrate directly with your application. It is not just an API wrapper. It provides a unified execut...
https://rubystacknews.com/2026/04/10/building-a-complete-gis-stack-in-rails-ruby-libgd-libgd-gis-map_view/
April 10, 2026 Over the past few months I’ve been working on a small GIS-oriented stack in Ruby, focused on a simple goal: rendering maps from GeoJSON...
Stop Using SQL LIKE: A Step-by-Step Guide to Elasticsearch in Rails When you build a…
Regular expressions (regex) are powerful tools for pattern matching and text manipulation https://www.railscarma.com/blog/ruby-regex-match-guide-with-...
A new version of the Ruby bindings to RE2, a “fast, safe, thread-friendly alternative to backtracking regular expression engines like those used in PC...
Building Drag and Drop in Rails 8 with SortableJS and Importmaps Very often I find myself…
Post: https://railsdesigner.com/introducing-fuik/ Repo: https://github.com/rails-designer/fuik
llm.rb v4.12.0 has been released. Check the CHANGELOG for details.
https://rubystacknews.com/2026/04/08/pure-ruby-maps-libgd-gis-rails/
April 8, 2026 Static GIS maps, pure Ruby, GeoJSON support, and zero JavaScript bloat. Over 15 years ago, I discovered the GD library at a Linux confer...
#795 — April 9, 2026 Read on the Web Ruby Weekly A Maintainer's Guide to Ruby's Release Cycle — Core team member hsbt explains how Ruby 3.2 and 3.3 a...
Very often I see JavaScript developers getting tired of building backend APIs with Express.js….
Rabarber, a role-based authorization gem for Rails, releases v6.0.0. The new version finalizes the API cleanup started in v5 and reworks the caching m...
When a small UI interaction gets tricky, it’s easy for Stimulus/JS to end up full of class toggling that’s really just presentation logic. This articl...
https://rubystacknews.com/2026/04/07/mapview-static-maps-for-rails-no-js-no-frontend-just-ruby/
Five git one-liners I run on every new codebase before opening a file. Churn hotspots, bus factor, bug clusters, commit velocity, and crisis patterns....
April 7, 2026 From the creator of ruby-libgd and libgd-gis comes native Rails integration Many of you already know ruby-libgd – the gem that brings GD...
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https://rubystacknews.com/2026/04/06/whats-this-dragonruby-game-toolkit/
