Short Ruby Newsletter - edition 160

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Table of Contents

• 🚀 Launches and discounts

• 📅 Events

• 👉 All about Code and Ruby

• 🧰 Gems, Libraries, Tools and Updates

• More content: 📚 🗞 🎧 🎥 ✍🏾

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🚀 Launches and discounts

🚀 Sandi Metz announced a discount for the following books: Practical Object-Oriented Design 1 and 99 Bottles of OOP

🚀 Jason Fried announced the launch of FIZZY - here is a screenshot of a part of the announcement. Read the full announcement here and checkout the code at https://github.com/basecamp/fizzy

We collected all resources about Fizzy (the open source model, future of ONCE, technical walkthroughs …) in a section called All about Fizzy - click to go directly there or keep scrolling and you will reach it.

📅 Events

📅 Krakow Ruby Users Group (Krug) announced a new meetup → KRUG #5 2025

📅 Tropical.Rb is looking for speakers for the next year event → Call for Proposals - Tropical on Rails 26

👉 All about Code and Ruby

👉 Hiroshi Shibata anounced two blog post for the release of Ruby 4.0.0 → 4.0.0 Released and Upgrading to RubyGems/Bundler 4

👉 Jared White announced Bridgetown 2.1 Beta 1 → ’Tis the Season to Be Jolly with Bridgetown 2.1 Beta 1

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👉 This edition includes two sections where we groupped two topics that were discussed at length in your community and you can jump directly to them:

• The launch of Fizzy by 37 Signals - Jump to the section

• The weird Wired.com article about Ruby - Jump to the section

👉 Brooke Kuhlmann published a tutorial about configuring Hanami to work with Sidekiq

👉 David Morales published an article about Value Objects in Ruby: The Idiomatic Way (hint it uses the Data object)

💡 Errol Schmidt published their Survey Results with Ruby/Rails leaders - Watch it on Youtube here

💻 Code Samples

️💻 ️Stefanni Brasil shared how you can share a piece of Ruby code alongside it’s test

💻 Meerzulee shared how to configure a full stack project

️💻 Ruby On Rails added an improvement to enums: built-on validation

️💻 Mika Henriksson shared a code sample about the “with“ method in CurrentAttributes

📐 Thinking about Code Design

️📐️ James Kerr asked his community about which one of the following variants they prefer

He got some replies:

️📐 Marco Roth shared a new insight for the new version of HERB

️📐 Yaroslav Shmarov created some extensions for simple_form. More can be checked on his latest PR → Simple form character counter component

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

💡 Adam shared he succeeded to develop mobile apps using Ruby runtime

💡There were a lot of resources shared about the new tool they launched Fizzy.do

🚀 David Heinemeier Hansson shared on what license Fizzy is released

Jason Fried talked about the strategy of Fizzy

David Heinemeier Hansson shared the SaaS version of Fizzy → fizzy-saas

Vladimir Dementyev shared that 37signals shared the Fizzy ERD diagram

️📐 David Heinemeier Hansson shared some performance stats about Fizzy test suite

David Heinemeier Hansson shared a couple of facts about working at Fizzy (read the full thread on web)

Seems like there is an announcement to be made about activerecord-tenant:

️Alex Shapalov shared a thread about various techniques used in Fizzy. Read the full thread on web here but here are 2 of the posts shared:

️Jorge Manrubia shared about the code that make the activity timeline and the boards permanently screen to show live updates:

Rob Zolkos published a new article about Vanilla CSS is all you need

Rob also published (among multiple posts about Fizzy) one interesting about Fizzy Webhooks: What You Need to Know

BeautifulRuby.com published a walkthrough video → 37 Signals Fuzzy Kan-Ban board Rails App: Read The Friendly Source Code

Drifting Ruby published new video about Cool Things in Fizzy

️Jorge Manrubia shared about the future of Turbo. Please read the full post on web and here I will include just a piece of it:

Rob Zolkos published another article about The Making of Fizzy, Told by Git

❤️ Why Choose Ruby and Rails

❤️ David Heinemeier Hansson expressed his amazement about how far Rails can go in the real world

💔 Last week Wired published a very weird article Sheon Han published Ruby Is Not a Serious Programming Language In case the paywall appears you can read the article here 

This has triggered some responses from the community:

❤️ Robby Russell talked about the maturity of Ruby and published a great article “Why So Serious?”

❤️ Benjamin Houy disagreed with what Wired said about Ruby

❤️ Natalie Kaminski (CEO/Co-founder at JetRockets) wrote an article A JetRockets Response to WIRED’s “Ruby Is Not a Serious Programming Language”

The discussion on r/programming has some good replies. Here is among the best replies there:

The response from Robbie Russell was also discussed on HackerNews having (at the moment of writing the newsletter) around 170 comments. Here are some of them:

🧰 Gems, Libraries, Tools and Updates

🆕 New Gems and Repos

🆕 Stephen announced a new repository → claude-ruby-plugins - “Claude Code skills, commands, and agents for writing Ruby RBS type signatures“

🧰 Updates

🧰 Stefanni Brasil released a new version of faker - “A library for generating fake data such as names, addresses, and phone numbers.“

🧰 David Heinemeier Hansson announced a new PR merged into Rails → Add schematized json for has_json

🧰 Kieran Klaassen shared that leva will have automatic prompt generation

🧰 Jorge Manrubia announced an update for lexxy

🤝 Related (but not Ruby-specific)

🤝 Stephen Margheim shared how to bind popovertargets with their popovers without having to distinct anchor-names

🤝 David Paluy 🇮🇱 how to handle merge conflicts of credentials.yml.enc

🤝 Taylor Otwell 🪐 shared what he notices about developers who write code with AI

More content: 📚 🗞 🎧 🎥 ✍🏾

🗞 Newsletters

🗞 This Week in Rails published a new edition → Schema-Enforced JSON Access, Postgres Type Decoding, and more!

🗞 Matt Solt published a new edition → Ruby AI News - December 3rd, 2025

🗞 Andrey Eremin published a new edition → Static Ruby Monthly | Issue 11, December 2025

🗞 Ruby Weekly published a new edition → 37signals releases the source for another SaaS app

🗞 Hotwire Weekly published a new edition → Week 48 - Invokers API, From ERB to JavaScript, and more!

🗞 Emmanuel Hayford published a new edition → Schema-Enforced JSON Access, Postgres Type Decoding, and more!

🎧 Podcasts

🎧 The Ruby AI Podcast published a new episode about Running Self-Hosted Models with Ruby and Chris Hasinski

🎧 Rails Business published a new episode about about Nate Berkopec

🎧 Ruby Around The World [Ruby on Rails Interviews] published a new episode about Bernard Banta, Chairman of African Ruby Community

🎧 Remote Ruby published a new episode about Docker Disasters and Dev Container Journeys

🎥 Videos

🎥 Beautiful Ruby.Com published a new video → 37 Signals Fuzzy Kan-Ban board Rails App: Read The Friendly Source Code

🎥 Rails Quest by Kaleb Lape published a new video → Rails 8 + Tailscale: Private App Deployment Made Ridiculously Simple

🎥 CJ Avilla published a new video → Smarter .env management with 1password

✍🏾 Articles

What’s new 🆕

🆕 Robby Russell published a new article about Why So Serious?

🆕 Aiden Fox Ivey published a new article about Adding Iongraph support to ZJIT

🆕 Tony Yunker published a new article about Why Ruby is the Best Language for Advent of Code

🆕 Rails Designer published a new article about Building optimistic UI in Rails (and learn custom elements)

🆕 Hiroshi Shibata published a new article about Upgrading to RubyGems/Bundler 4

🆕 Adam Pope published a new article about Logging outbound emails with ActionMailer

🆕 Tejas Bubane published a new article about Rails pluralization with translations

🆕 DevelClan published a new article about Value Objects in Ruby: The Idiomatic Way

🆕 Felice Forby published a new article about Setting up a Rails 8 + Kamal app with Doppler Secrets

🆕 Jared Norman published a new article about Advent of Eternal Champions I

🆕 Sharon Rosner published a new article about OSS Friday Update - The Shape of Ruby I/O to Come

🆕 Rob Zolkos published a new article about Fizzy Webhooks: What You Need to Know

🆕 Igor Alexandrov published a new article about Ruby Is Serious Business: Why Ruby on Rails Delivers Real

How-TOs 📝

📝 Brooke Kuhlmann published a new article about Hanami with Sidekiq

📝 Victor Cobos published a new article about How to Expose Your Rails Localhost Securely Using Cloudflare Tunnel

📝 Irina Nazarova published a new article about Vibe coding in style.md

Related ✍️

✍️ Rob Zolkos published a new article about Vanilla CSS is all you need

✍️ Stephen Margheim published a new article about Affordances: The Missing Layer in Frontend Architecture

✍️ Shreya Shankar published a new article about On the Consumption of AI-Generated Content at Scale