Short Ruby Newsletter - edition 157

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🚀 Launches and discounts

🚀 Mike Perham launched a new initiative → the gem fellowship

🚀 Dave Thomas launched a discount of 50% for Pragmatic Bookshelf books → visit pragprog.com

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📅 Events

📅 Rails Camp Usa has opened early bird registration with only 30 tickets left. Hurry up and grab a ticket for yourself, right here → RailsCamp26

📅 Tropical.Rb announced that tickets sales have started. If you’re interested, you can see the tickets available here → Tropical on Rails 2026 | The Brazilian Rails Conference

📅 Wroclove.Rb is looking for speakers for their next year’s event. If you’re interested, submit your talk here → CFP 2026

📅 African Ruby Community is looking for speakers for their next year’s event. If you’re interested, submit your talk here → CFP Ruby Conf 2026

📅 Rubycon Italy is looking for speakers for their next year’s event. If you’re interested, submit your talk here → CFP RubyconItaly

📅 Ruby Conf Austria is looking for speakers for their next year’s event. If you’re interested to submit your talk, hurry up, there are few days left → RubyConf Austria 2026

👉 All about Code and Ruby

👉 Ruby 4.0.0 preview2 has been released. Check out the blog post for more details.

👉️ Hiroshi Shibata announced two new releases → bundler-v4.0.0.beta1 & v4.0.0.beta1

👉️ Ivo Anjo shared a blog post about their effort at Datadog to optimize Ruby performance. Here’s the blog post for more detailed insights → Optimizing Ruby performance: Observations from thousands of real-world services

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💻 Code Samples

️️💻 Elvinas Predkelis shared how he attached icons to Rails models

️💻 Jorge Manrubia shared a code sample on how to reflect any changes in the data without having to refresh

️💻 Jorge Manrubia shared an interesting approach to extract partials just like methods

️Raf replied

Jorge responded back with a convention from 37Signals

️💻 Juraj Kostolanský posted a code sample on how to have an array or hash without blank items

️💻 Yaroslav Shmarov shared different ways to write a simple button using Rails UI libraries

📐 Thinking about Code Design

📐 Maedi Prichard published a new gem low_type - "An elegant and simple way to define types in Ruby, only when you need them” that proposes an interesting way to implement some kind of type definitions:

️📐️ Jorge Manrubia shared some thoughts on Turbo. Here is just a part of his post, to get all the details, please read the full thread

️📐 Bram Jetten shared how Ruby has received some performance improvements lately

️️He received some replies:

📐 Stan Lo shared how Ruby’s developer experience evolved recently

️📐 Glauco Custódio shared a new feature in Rails 8.1. For more details, check his blog post → New in Rails 8.1: Bring Your Favorite Editor to Error Pages

️📐 Joel Drapper shared some words on Slim and Haml. This is just a part of his thread, we recommend to read it entirely on Skywriter.

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

💡 Rhiannon Payne launched a new YouTube series → Ruby Around The World. If you want to see his first video from his journey, check it right here → Japan is the Heart of Ruby, But Feels Far From Rails

🧰 Gems, Libraries, Tools and Updates

🆕 New Gems and Repos

🆕 Stuart announced a new gem → hotwire_native_version_gate - “Easy version gating for Hotwire Native Apps in Rails“

🆕 Sebyx07 published a new gem better_structure_sql - "Pure Ruby database schema dumper for Rails applications supporting PostgreSQL, MySQL, and SQLite. Generates clean, deterministic structure.sql files without pg_dump/mysqldump/sqlite3 CLI dependencies. Supports both single-file and multi-file output for massive schemas with tens of thousands of database objects. Includes schema versioning with ZIP storage and web UI for browsing versions. "

🧰 Kieran Klaassen announced a new version of blazer-ai: AI-powered natural language to SQL generation for Blazer using RubyLLM

🧰 Updates

🧰 Stephen announced an update for encoded_id - “Turn numeric or hex IDs into reversible and human friendly obfuscated strings. Also supports Rails ActiveRecord models“

🧰 Murilo Duarte made an improvement for Rails → Enhance rate limiting to support dynamic to: and within: options

🤝 Related (but not Ruby-specific)

🤝 Tech With Mak made a post about how random UUIDs affect database performance. Here is just a part of his post, make sure to read the thread completely.

🤝 The Primeagen shared his perspective on how practicing programming and becoming an expert remains crucial in this AI era

🤝 Jorge Manrubia talked a little bit about refactoring

🤝 Kent Beck published an article about Why Does Development Slow?

More content: 📚 🗞 🎧 🎥 ✍🏾

🗞 Newsletters

🗞 Ruby On Rails published a new edition → This Week in Rails: November 21, 2025

🗞 Ruby Weekly published a new article about An early look at Ruby 4.0 and RubyGems 4.0

🗞 Matt Solt published a new edition → Ruby AI News - November 19th, 2025

🗞 Joe Masilotti published a new edition → Hotwire Native deep dive: Push Notifications

🗞 Hotwire Weekly published a new edition → Week 47 - Hotwire Native Deep Dive, Version Gates, and more! • Buttondown

🎧 Podcasts

🎧 On Rails published a new podcast episode → Kayla Reopelle: What Your Rails App Is Trying To Tell You

🎧 Errol Schmidt published a new podcast episode → Technology for Humans: Carlos Lopes

🎧 Pabs published a new podcast episode → 25 - On Taste with Sandjiv and Mathieu - A Junior, A Senior and I

🎧 Jason Swett published a new podcast episode → The Code with Jason Podcast: 275 - Irina Nazarova, Organizer of SF Ruby Conference

🎧 The Ruby AI Podcast published a new podcast episode → The Latent Spark: Carmine Paolino on Ruby’s AI Reboot

🎧️ Code and the Coding Coders who Code it published a new podcast episode → Episode 59 - Scott Werner

🎧 The Bike Shed published a new edpisode → 483: Comparing notes on note-taking

🎧 Ruby Around The World published a new episode → Japan is the Heart of Ruby, But Feels Far From Rails | OKURA Masafumi, Organizer of Kaigi on Rails

🎧 Remote Ruby published a new episode → Rails Business with Brendan Buckingham and Ryan Frisch

🎧 Rails Business published a new episode → Communicating Project Requirements

🎧 Errol Schmidt published a new episode → Ethical hacker, Ruby Developer, Rails developer | Greg Molnar

🎧 Ruby Rogues published a new episode → The New Era of Rails: Markdown, Offline Mode, and Smarter Dev Tools - RUBY 681

📚️ Slides

📚️ Stan Lo published his slides from RubyWorldConf → Ruby DX - Past & Future

📚️ Jeremy Evans published his slides from San Francisco Ruby Conference → The Thin CLIent Approach

📚️ Vladimir Dementyev published his slides from San Francisco Ruby Conference → Keynote: Rails X

🎥 Videos

🎥 SupeRails published a new video → Friendly Show: How to get a Ruby Passport?

🎥 BeautifulRuby.com published a new “walking podcast“ video → Adrian Marin, founder of Avo, talks about the business of selling software to developers

🎥 Ryan Singer published a new video → End-to-End with Shape Up: A Real-World Case Study

🎥 SupeRails published a new video → Ruby on Rails #241 CSS Container queries. Breakpoints based on parent container width, not browser

🎥 Go Rails published a new video → Module extend self

🎥 Thoughtbot published a new video → Pair programming with AI

✍🏾 Articles

What’s new 🆕

🆕 Justin Searls published a new article about TDD is more important than ever

🆕 Pat Shaughnessy published a new article about Compiling Ruby To Machine Language

🆕 Obie Fernandez published a new article about Ruby Was Ready From The Start

🆕 Kevin Murphy published a new article about Don't REST on your Laurels

🆕 Giménez Silva Germán Alberto published a new article about Ruby isn’t “just elegant”—it’s a powerhouse.

🆕 Nikhil published a new article about How to Create and Work With Date Objects in Ruby on Rails

🆕 André Arko published a new article about Operating Rails: what about after you deploy?

How-TOs 📝

📝 Dennis Paagman published a new article about Making sure local CI is green before deploying to Heroku

📝 Rails Designer published a new article about Update favicon with badge using custom turbo streams in Rails

Related ✍️

✍️ Josef Strzibny published a new article about Comparing programming communities on Reddit

✍️ Bozhidar Batsov published a new article about Burst-driven Development: My Approach to OSS Projects Maintenance

✍️ Pabs published a new article about My code is a liar