Short Ruby Newsletter - edition 143

In partnership with

Table of Contents

• 🚀 Launches and discounts

• 📅 Events

• 👉 All about Code and Ruby

• 🧰 Gems, Libraries, Tools and Updates

• 🤝 Related (but not Ruby-specific)

• More content: 📚 🗞 🎧 🎥 ✍🏾

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🚀 Launches and discounts

🚀 Matt Solt published an amazing report → Ruby AI: MEGA Jobs & Opportunities

🚀 Joe Masilotti launched Ruby Friends

🚀 Carmine Paolino released the Async Guide for RubyLLM

🚀 Ruby On Rails launched a beginner-friendly series for learning Rails.

You should also take a look at this series that Rails started called Rails in Focus

🚀 Errol Schmidt shared his initiative for gathering as much information as possible about future of our industry - link to calendar

🚀 Andrea Fomera launched RubyEnv - Ruby Development, Perfected on macOS

🚀 Vladimir Dementyev launched a Rails tutorial that runs in the browser → in-Rails

🚀 Marty Haught launched a new podcast called The Ruby Gems Podcast

🚀 Emmanuel Hayford launched his first product → RailsTips.io

🚀 Ruby Cademy launched an ebook → RubyCademy Cards - 1st Edition

📅 Events

📅 Irina Nazarova announced the availability of general tickets for the San Francisco Ruby Conference and the final schedule for this event. Don’t miss this opportunity, book your place right here → The San Francisco Ruby Conference Tickets

📅 Rocky Mountain Ruby Conference announced new speakers for this year event. Early Bird tickets are available, hurry up and get yourself one → Early Bird Tickets 2025

📅 Rails Conf published all video recordings and are available here → Ruby Events - RailsConf 2025 or directly on YouTube

📅 Kasper Timm Hansen announced a new workshop about Fast Tests, Clear Datasets with Oaken: for fixtures + factories + seeds

📅 Blastoff Rails will take place next year on June 11-12

👉 All about Code and Ruby

👉 Ruby on Rails achieved 21 years of powering the web 🥳 

👉 With this amazing ocassion, Alexis Rondeau built a git-history explorer for Rails

He also shared the earliest commit of Rails that he could find 🥸 

👉 Hiroshi Shibata announced a new version of Ruby 3.2.9 but they are inviting to upgrade to Ruby 3.3 or Ruby 3.4

👉 Takashi Kokubun announced a new version of Ruby 3.4.5

💻 Code Samples

️️💻 Mark Hesketh showcased how well InertiaJS works with Rails

️️💻 Lucian Ghinda shared a thread showing changing from an Array of Active Records to an Array of Hashes and how Sorbet can help with this refactoring:

️💻 Typecraft shared a code sample about Turbo Streams

️💻 Brad Gessler came up with an alternative for Turbo Streams example from above

💻 Collin asked his community about their favorite Ruby method and also shared his preferred one → Enumerable#partition

The community replied:

• binding.irb

• Object#methods and Object#method

• Enumerable#zip

• Hash#fetch

️💻 Michael Chaney shared a code sample for handling mix of UTF-8 and Latin-1 formats in CSV files

️💻 Dave Thomas shared a trick to make error messages readable and less overwhelming

💻️ Caleb Faruki shared an useful regex tip for validating email addresses

💻️ Hans Schnedlitz shared a nice way to configure Neovim to get validations to your Rails YAML files

️💻 Ruby Cademy shared how you can pass a hash to “ActiveRecord::Base#pluck“

️💻 Hans Schnedlitz shared a helper method for building ViewComponents

️️💻 Mark Godwin shared what he learned that Rails can’t plural/singularize “as“

💻 Saeloun shared a code sample about the usage of self-join in Rails

️💻 Mark Godwin shared an interesting tip for Rails

 💻️ Lucas M shared a code sample on how to build a design system with Phlex and Literal

️💻 Brad Gessler shared a code sample about service objects

️💻 Robby Russell shared the Rosa’s migration script for resque-scheduler to Solid Queue

️💻 Radan shared a code sample about “it“ - the implicit keyword of the block parameter

️💻 Ruby Cademy shared a code snippet about “pbcopy“ helper

📐 Thinking about Code Design

️️📐 Gavin Morrice shared a Ruby programming joke replacing 'love me' with “respond_to?(selector)” in the Backstreet Boys lyrics - prioritizing duck typing over identity

️📐 Akshay posted a thread about meta-programming in Ruby. You can read the entire thread on X

️📐 Maciej Mensfeld remained impressed by the performance improvements added by Jean Boussier for html_safe. For more details, check his PR → Optimize ActiveSupport::SafeBuffer

📐 Benoit shared what he learned new about Rails

️📐 Matheus Richard made some improvements on test suite by using rack test instead of selenium

️📐 John Nunemaker shared his thoughts about Rack middleware

️📐 Irina Nazarova shared what she found out about Figma’s Ruby stack

️📐 Matthew Bellantoni described his Claude Code flow in RubyMine

️📐 Nate Berkopec shared his approach to set context

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

💡 Carmine Paolino achieved a new milestone, RubyLLM has now 1 million downloads

💡 Mark Godwin shared about the importance of studying the documentation for the tools you’re using

❤️ Why Choose Ruby and Rails

❤️ Planet Argon shared the positive trajectory of Ruby on Rails in 2025. Down below is also a good blog post to check out → Ruby on Rails Trends 2025: What’s Hot, What’s Next

❤️ Jacob Daddario is amazed by the continuous growth of Ruby community in San Francisco

❤️ Jason Bosco shared how Rails can help you as an early startup

❤️ Rich Chetwynd expressed his appreciation and amazement for Rails community

❤️ Sharkey demonstrated how powerful and easy Rails can be

❤️ Bijan Rahnema shared how amazing Rails is for building a production-ready app with few lines of code

🧰 Gems, Libraries, Tools and Updates

🆕 New Gems and Repos

🆕 Dave Copeland released a new web framework → BrutRB (and the introduction article Brut: A New Web Framework for Ruby)

You can read an article where David shows how to Build a blog in 15ish Minutes with BrutRB - see the video here

🆕 Chris Oliver created a new gem → ferrum_pdf - “A PDF generator for Rails using Ferrum & headless Chrome“

🆕 Avi Flombaum released an early version of his gem → ActivePrompt

🆕 Patrick Vice created a new gem → ruby_llm-mcp - “Full-featured MCP support for Ruby and RubyLLM—making it easy to build structured, composable LLM workflows in pure Ruby.“

🆕 Ismael Celis announced the new Ruby SDK for Datastar

🆕 Samuel Williams announced a new gem → agent-context - “A framework for Ruby Gems to expose LLM context“

🆕 Jeremy Smith announced a new gem → active_operator - “A Rails pattern for calling external APIs, then storing and processing their responses“

🆕 Lucas M :Ruby: created a new gem → rspec-time-guard - “A Time Guard that allows you to set timeouts to your RSpec tests“

🆕 Shivam announced a new gem → ai-agents - “Ruby AI Agents SDK - Inspired by OpenAI Agents SDK“

🆕 David Teren launched Simple Morph

🆕 Samuel Williams announced a new gem → async-ollama - “Provides an interface for accessing the Ollama HTTP interface.“

🧰 Updates

🧰 Stan Lo announced a new addition to ruby-lsp → CLAUDE.md file

🧰 Chris Oliver announced a new feature for FerrumPDF - “A PDF generator for Rails using Ferrum & headless Chrome“

🧰 David Rodríguez released an update for rubygems - “Library packaging and distribution for Ruby.“

🧰 Marco Roth announced a new version of herb - “🌿 Powerful and seamless HTML-aware ERB parsing and tooling.“

🧰 Carmine Paolino announced new features for RubyLLM - “Stop juggling AI SDKs! RubyLLM offers one delightful Ruby interface for OpenAI, Anthropic, Gemini, Bedrock, OpenRouter, DeepSeek, Ollama & compatible APIs. Chat, Vision, Audio, PDF, Images, Embeddings, Tools, Streaming & Rails integration.“

🧰 Kuba Suder announced a new version of bluesky-feeds-rb - “Template of a custom feed generator service for the Bluesky network in Ruby“

🧰 Bozhidar Batsov announced a new version of rubocop - “A Ruby static code analyzer and formatter, based on the community Ruby style guide.“

🧰 Maxime Réty brought a new optimization to Rails → Optimize Active Record batching further when using ranges

🧰 Jeremy Evans announced a new version of Roda 3.94.0 - “Routing Tree Web Toolkit“

🧰 Mika Henriksson contributed on a new release of solid_queue - “Database-backed Active Job backend“

🧰 Nate Berkopec shared a PR made by Hugo Peixoto → Add execute_queries matcher

🧰 Obie Fernandez announced a new version of claude-on-rails - “A development framework for Ruby on Rails developers using Claude Code, inspired by SuperClaude“

🧰 Xavier Noria added support for deprecating associations in ActiveRecord → Deprecated associations

🧰 matheusrich.bsky.social announced a new release of rails-diff - “Compare Rails-generated files with the ones in your repository“

🤝 Related (but not Ruby-specific)

🤝 Nate Berkopec shared an interesting take about learning to code

He also shared about agentic coding. Here is a part of a thread he shared:

🤝 Jon Yongfook shared an advice for indie SaaS companies about making an alternatives/comparison page. He posted an interesting example which is worth checking out → Bannerbear Alternatives

🤝 Stephen Margheim shared his new text-only affordance for actions

🤝 Peter Cooper shared his thoughts about “micro agents“. This is arguably an interesting thread and you should look up for the remaining of it on X.

🤝 Stephen Margheim shared a fact about HTML

🤝 Yehuda Katz shared his vision about the importance of craft practices

🤝 Sid shared that Claude Code launched a new feature → /agents

🤝 Jonathan Reinink released vanilla JavaScript support for all UI blocks in Tailwind Plus

More content: 📚 🗞 🎧 🎥 ✍🏾

📚️ Jeremy Evans shared his slides from SF Ruby Meetup → Eliminating Unnecessary Implicit Allocations

📚️ Marco Roth shared his slides from RailsConf → The Modern View Layer Rails Deserves

🗞 Newsletters

🗞 Ruby Weekly published a new article about Rails first released 21 years ago today

🗞 Matt Solt published a new edition → Ruby AI News - July 22, 2025

🗞 This Week in Rails published a new edition → PostgreSQL 18 warnings, secure password improvements and more!

🗞 Gift Egwuenu published a new edition → June 2025 RubyGems Updates

🗞 Hotwire Weekly published a new edition → Week 30 - RailsConf 2025 talks, Tailwind Primitives for HTML and Vanilla JS, and more!

🗞 Awesome Ruby Newsletter published a new edition → Issue 479 - The 60-Second Wait: How I Spent Months Solving the Ruby’s Most Annoying Gem Installation Problem

🎧 Podcasts

🎧 Indie Rails published a new podcast episode → Matt Swanson - The Product Engineer

🎧 The Bike Shed publised a new podcast episode → about 468: RailsConf Recap with Tess Griffin

🎧 Remote Ruby published a new podcast episode → RailsConf 2025 Recap

🎥 Videos

🎥 Ruby On Rails published a series of videos → Rails in Focus

🎥 Irina Nazarova published a new video → Gusto Co-Founder and CTO Edward Kim in Startups on Rails

🎥 Joe Masilotti published a new video → Starting a new app, Ruby Friends - Hotwire Native LIVE #5

🎥 Drifting Ruby published a new video → Database Constraints

🎥 Joe Masilotti published a new video → Add a native button to your Hotwire Native app (step-by-step)

🎥 Travis Dockter published a new video → Interview: Adrian Marin (Organizer)

🎥 Joe Masilotti published a new video → Ruby Friends Authentication - Hotwire Native

🎥 Typecraft published a new video → DHH discusses Linux and Omarchy

🎥 Justin Bowen posted a new video → Active Agent (AI Rails Framework) Demo / Pairing Let's Build Your First Agent in Ruby on Rails!

🎥 Aaron Patterson posted a new video → Pairin' with Aaron: Hacking on ZJIT with Max!

🎥 Evil Martians published a new video → SF Ruby Meetup, July 22, 2025 ‪Figma‬

✍🏾 Articles

What’s new 🆕

🆕 Rob Zolkos published a new article about Rob Zolkos - Ruby on Rails Software Developer

🆕 Adrian Marin published a new article about Rails Engine Assets: Making Your Gem Work with Sprockets AND Propshaft and about OTP Input field with StimulusJS

🆕 Marco Roth published a new article about Introducing the Herb Linter, Formatter, and a Vision for the Future of Rails Views

🆕 Ben Sheldon published a new article about Consider Thruster with Puma on Heroku

🆕 Stan Lo published a new article about AI Coding Agents Are Removing Programming Language Barriers

🆕 Hans Schnedlitz published a new article about Ruby on Rails, Claude Code and Worktrees

🆕 Matt Swanson published a new article about Hotwire components that refresh themselves

🆕 Zhephyn published a new article about Why Junior Rails developers should contribute to Open Source projects

🆕 Carmine Paolino published a new article about Async Ruby is the Future of AI Apps (And It's Already Here)

🆕 Aaron Christiansen published a new article about Ruby blocks aren't just functions

🆕 Julik Tarkhanov published a new article about Why Can't We Just... Send an HTML Email and about Hexatetrahedral Rails

🆕 Dave Copeland published a new article about Brut: A New Web Framework for Ruby

🆕 Brad Gessler published a new article about Service Objects and about Phlex class variants

🆕 Chad Pytel, Sarah Lima & Kate Young published an article about AI in Focus: Refactoring Rails with AI tools

🆕 Thomas Countz published a new article about Event Streaming vs Background Jobs

🆕 Kane Jamison published a new article about A Custom Outdated Gems Script to Speed Up Ruby Dependency Upgrades [+ Video] and about How To Organize ViewComponents in Rails

🆕 Paweł Urbanek published a new article about Using LLMs and MCP to Debug PostgreSQL Performance in Rails

🆕 Jared Norman published a new article about Code Reloading for Rack Apps

🆕 Rails Designer published a new article about Add a multi-step form/wizard to your Rails app

How-TOs 📝

📝 Akshay published a new article about I am Rebuilding this Blog with Rails and continued with Let’s Create a New Rails Application.

Related ✍️

Stan Lo published a new article about AI Coding Agents Are Removing Programming Language Barriers