Short Ruby Newsletter - edition 123

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Table of Contents

• 🚀 Launches and discounts

• 📅 Event

• 👉 All about Code and Ruby

• 🧰 Gems, Libraries, Tools and Updates

• 🤝 Related (but not Ruby-specific)

• More content: 📚 🗞 🎧 🎥 ✍🏾

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🚀 Launches and discounts

🚀 Joel Drapper announced the release of Phlex 2.0:

🚀 Offer Lab launched their own product offerlab.com

🚀 Donn Felker announced the Hotwire Native Android course is now complete:

🚀 Wilbert Liu launched a new tool Markdown to email:

🚀 Ruby Central shared a new initiative: community spotlight 

🚀 JMD launched a new app Owl.so

🚀 Andrea Fomera announced alpha testing for Spin CLI

📅 Event

📅 Ruby Central announced the openings for Scholars and Guides program

📆 You can find the full list of conferences, meetups, open CFPs on rubyconferences.org

👉 All about Code and Ruby

👉 k0kubun announced the release of Ruby 3.4.2

👉 postmodern-mod3.bsky.social brings good news: Ruby 3.4.2 is ready to install 🥳 

👉 Aaron Patterson published an article about Tiny JITs for a Faster FFI in CRuby

You should also check the comments on Hacker News

👉 Peter Cooper shared a GitHub Gist with some conventions to help build Rails apps using LLMs

💻 Code Samples

️💻 Ahmed Nadar shared a code sample about Turbo Streams: Immediate vs. Delayed broadcasting

️️💻 Kyrylo Silin shared some code samples about using Comparable#clamp method

The code sample he provided first:

Simplifies to this after refactoring ✨:

️💻 Michael Chaney shared a bug story about a trailing comma in his code

️💻 Alessandro Rodi shared a way to customize Turbo’s failed request messages

️💻 Ruby Cademy shared how handy has_many macros are in Rails

️💻 OKURA Masafumi shared a code sample about Ruby’s string justification methods:

💻 Dave Copeland shared a handy Ruby pattern for smarter factory methods

And then follows up with:

️💻 Ruby Cademy shared a smoother way to handle unknown attributes

️💻 Bob Head shared a trick for quick sitemap refresh with Kamal

💻 Prem Sichanugrist shared his discovery 🕵🏼‍♂️: the absence of no implicit “it“ in rescue blocks

and Xavier Noria pointed to a solution ⚡️:

️💻 Ruby Cademy shared a code sample about using to_set for array comparison

💻 Jason Charnes shared a code sample about numeric nonzero

💻 Henrik Hauge Bjørnskov posted how to use “class_variants“ with Flex

Joel Drapper brought some alternatives for Henrik’s code:

️💻 Ruby Cademy posted a code sample about defining a custom ActiveModel type

📐 Thinking about Code Design

️📐 Ismael Celis shared a code sample about real-time view layer event sourcing

📐 Xavier Noria shared insights about Ruby method performance optimization:

️📐 Igor Alexandrov published that his team is migrating to Minitest

And his network immediately replied 👨‍💻:

️📐 Irina Nazarova shared some insights from SFRuby:

📐 Noel Rappin asked about common Bundler/Rubygem troubleshooting scenarios

Here are some responses:

📐 Xavier Noria shared some words on clearer module decoration

Plus an extra information:

💡Around code (news, findings, books, and more - all about Ruby)

💡 Hiroshi Shibata announced updates to Ruby branch maintainers:

💡 Dean De Hart reminded us about a Game Boy emulator written in Ruby: Ruby Boy

💡 Zil N asked about Rails productivity hacks

And the responses rolls in 🤩:

Here is the presented gem by William Estoque: awesome-print

💡 Avi Flombaum reflected on AI code generation with the focus on Hotwire and Stimulus

❤️ Why Choose Ruby and Rails

❤️ Elvinas Predkelis shared his positive amazement with the Rails ecosystem:

❤️ Jorge Manrubia highlighted the impressive productivity of 37signals team

❤️ Michael Koper reinforced Jorge’s point: Rails indeed empowers small teams to build big things:

❤️ Mark Allen shared the capabilities and the power you hold when building apps, dismissing the downfall of Ruby on Rails:

❤️ Michael Schwab shared about Ruby on Rails:

🧰 Gems, Libraries, Tools and Updates

🆕 New Gems and Repos

🆕 Alessandro Fazzi published a new repo alessandro-fazzi/ruby-devel-notebook: Jupiter notebook docker image with ruby kernel

🆕 Nick Sutterer published a new gem trailblazer-test - Super strong, non-verbose tests for your operations.

🆕 Javi Ramirez introduced a new gem of usage_credits: 💳✨ Add usage-based credits to your Rails app

🧰 Updates

🧰 J Ruby Dev Team rolls out a new version of JRuby - 9.4.12.0

🧰 Phusion B.V. presented a new version of Passenger 6.0.25

🧰 Brad Gessler released an update on mailto

🧰 Ismael Celis announced an update about his event sourcing app with a demo

🧰 Bozhidar Batsov announced a new version of RuboCop

Here is also the plugin migration guide

🧰 Samuel Williams announced a new version of rocketry/rubydns

🧰 postmodern-mod3.bsky.social announced an update for Ronin

🤝 Related (but not Ruby-specific)

🤝 Zeke Gabrielse spoke about the founder’s paradox

🤝 Nate Berkopec shared some thoughts on web performance metrics

🤝 Michael Chaney talks about the importance of using constants and meaningful names instead of magic numbers

🤝 Andrew Atkinson shared his experience with query optimization

This post brought the following questions:

🤝 Justin Jackson shared his thoughts on Why AI Won't Replace Web Developers

More content: 📚 🗞 🎧 🎥 ✍🏾

🗞 Newsletters

🗞 This Week In Rails published a new edition about Routes Lookup Optimizations, PostgreSQL Alter Table improvements and more!

🗞 Ruby Weekly published a new edition about Using JITs for faster FFI in Ruby

🗞 Hotwire Weekly published a new article about Week 07 - Hotwire Native Cameras, OfferLab's Success, and more!

🗞 Awesome Ruby Newsletter published a new edition about Issue 456 - Tiny JITs for a Faster FFI

🎧 Podcasts

🎧 Pablo shared a new episode about: On tests and RSpec

🎧 Remote Ruby published a new episode about: So Long, and Thanks for All the BETs! - Remote Ruby

🎧 The Ruby On Rails Podcast published a new episode about Episode 532: Hotwire Native with Joe Masilotti

🎥 Videos

🎥 Thoughtbot published a new video about Live coding on AI projects

️🎥 Irina Nazarova shared a link to the livestream from SFRuby Meetup 2025

🎥 Boulder Ruby published new video resources: Presentation Night Meetup Videos

🎥 Dave Kimura shared a new video about Frozen String Literal

Jason Sweett published a new video about Performance Improvements for Build Navigation - Live Coding on SaturnCI

Kaleb Lape published a new video about Rails 8 Tutorial 2025 | Add Payments in 5 Minutes with the Pay Gem 💰

✍🏾 Articles

What’s new 🆕

🆕 Ruby Gems published a new article about January 2025 RubyGems Updates

🆕 Greg Molnar published an article about The state of Security in Rails 8

🆕 Aaron Patterson posted an article about Tiny JITs for a Faster FFI in CRuby

🆕 Pat Shaughnessy published a new article about Using Different Size Pools

🆕 Charles Oliver Nutter published a new article about Boosting JRuby Startup with AppCDS and AOT caching

🆕 Shane P. published an article about Turbo Streams and design

🆕 Dave Thomas published a new article about Source Files: Keep Code Local

🆕 Michiharu Ono published an article about How (and How NOT) to Name Rails Models Beyond the Obvious

🆕 Josef Strzibny published a new article about Combining multiple sitemaps with a sitemap index

🆕 Davide Santangelo published an article about Building a Tiny Language Model (LLM) in Ruby: A Step-by-Step Guide - V3

🆕 Kyrylo Silin published a new article about OKLCH CSS variables for Tailwind v4 colors

🆕 Nemwel Boniface published an article about Stimulus.js Explained: A Beginner’s Guide for Ruby on Rails Developers - DEV Community

🆕 Saeloun Blog published a new article about Rails 8 Adds A New Script Folder By Default And Scripts Generator.

🆕 Jeremy Smith shared an article about Electronic Signatures with Rails

🆕 Pedro Leonardo published an article about Email Verification with Sent Codes in Ruby on Rails without Devise

🆕 Julie Kent published an article about Rails async queries by example

How-TOs 📝

📝 Rails Designer published a new article about How to Send Requests from Stimulus Controllers

📝 Joël Quenneville published a new article about How to customize ids in URLs in your Rails app

📝 Brooke Kuhlmann published a new article about RSpec Configuration

📝Dave Kimura published a new article about How to fix asdf 0.16.x which "broke" my ruby version

Related ✍️

✍️ Pascal Laliberté shared an article entitled Not Killing It where he talks about what comes with progress

✍️ Rails Designer published a new article about Build Features from the Outside In

✍️ Zeke Gabrielse published a new article about The outlier paradox

✍️ Reni Mercier published a new article about How I use git add –patch for reviewing my work

✍️ Ryan Bigg published a new article about Ghosts 'n' Stuff

✍️ Victor Cobos published a new article about Hide Scrollbars While Keeping Scrolling Intact