Short Ruby Newsletter - edition 142

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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

🚀 Ruby On Rails launched a podcast series → On Rails, read the launch article from Rails Foundation Introducing On Rails: A New Podcast 🎙️ from the Rails Foundation

🚀 Josef Strzibny launched a video course → Kamal DevOps. There is a 25% discount if you buy the course now.

🚀 Ruby Cademy announced early-bird price for RubyCademy Cards, 1st edition. Take a look an support this initiative here → Presale: RubyCademy Cards - 1st Edition

🚀 Kieran Klaassen launched Cora

🚀 Andrea Fomera announced beta version is coming soon for RubyEnv

📅 Events

📅 Yaroslav Shmarov announced new activities for this year edition of Friendly.rb

📅 Matt Solt has announced a new Artificial Ruby Meetup in NYC on July 16th. Book your place here → ArtificialRuby Meetup 

📅 There are 14 meetups happening this week all around the world: check https://rubyconferences.org/meetups 

👉 All about Code and Ruby

👉 Obie Fernandez announced a new gem → claude-on-rails - “A development framework for Ruby on Rails developers using Claude Code, inspired by SuperClaude“.

Discover more gems inside the Gems, Librarties and Tools Section

👉 Petr Hlavicka published a new well documented article about Versioning API requests and introduces a gem they created to help with versioning verquest - "Verquest helps you version API requests, simplifying the management of changes, handling the mapping for internal versus external names and structures, validating parameters, and exporting your requests to JSON Schema components for OpenAPI."

👉 Vladimir Dementyev published a new article about The Hotwire-Rails summit, or interactive multi-step forms at peak UX where they “share the tips and tricks we devised while building a sophisticated multi-step form that rivals any SPA experience for one of our clients”

👉 Lucas Geron published an article about A Journey Through the Greatest Ruby on Rails Milestones where they “revisit the main milestones of this trajectory, contextualizing some of them, exploring how the framework matured, and discussing what’s still happening today”

👉 Avo published a new article about Adding llms.txt to a Rails application where they explain step by step “how to add a llms.txt file to a Rails application and some best practices”

💻 Code Samples

💻 Matheus Richard shared a testing tip with a code snippet if you’re building a PWA with Rails

💻️ Peter Cooper shared how to host a gem in a single GitHub Gist

️️💻 Hans Schnedlitz shared a code sample about Object#itself! and how is useful in a Rails application

️💻 Devin Starks shared new insights on rails notes

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️💻 Mika Henriksson shared about how to respond to a specific request variant

️💻 James Kerr shared a helpful code snippet that might help you as well if you’re using default Rails error reporting and ActionDispatch::IntegrationTest

️💻 Ruby Cademy shared a code snippet about “halted_callback_hook”

️💻 Brad Gessler showcased the benefit of using blocks

️💻 Ruby Cademy shared a code snippet about ActiveRecord’s association extensions

RubyCademy also posted another example but now using the “extending“ method 😊

️💻 Devin Starks shared how handy Rails is when you have to normalize some attributes

️💻 Ruby Cademy shared a code snippet about how Ruby allows setting dynamic default values for arguments

️💻 Hans Schnedlitz shared how to inline SVGs without any additional gems

️💻 Igor Alexandrov shared an important tip on libvips

️💻 Devin Starks posted a code snippet explaining the difference between flash and flash.now

️💻 Jess Brown shared some code samples on dealing with timezones

️💻 Ruby Cademy showcased the usage of “wrap_parameters“ in Rails

📐 Thinking about Code Design

️️📐 Fabio shared a Bundler trick → default_install_uses_path

He also made a bash script that includes this Bundler feature. The script is available here → bootstraprails.sh

️📐 Joel Drapper recommended to use auto-complete by default in Rubocop configs, powered by RubyScema

️️📐 Nate Berkopec shared a trade-off tip on memory vs threading

📐 Peter Boling 🌹🧬⚛️ shared an advice on installing old version of Ruby for systems like Fedora 42

️📐 Nate Berkopec made a performance test comparing two different web application server architectures. If you’re interested, here is the app he used → Web Server Architecture Comparison

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

💡 Ruby On Rails announced a new community PR open → [RF-DOCS] Sign up guide

Chris replied:

💡 Marco Roth shared new updates on the Herb linter

️📐 Nate Berkopec shared his perspective on working with Claude Code for a small project in Ruby

❤️ Why Choose Ruby and Rails

❤️ Avi Flombaum put into perspective the Rails ecosystem in comparison with other frameworks

❤️ Bozhidar Batsov (a.k.a. Bug) expressed his appreciation for Ruby

🧰 Gems, Libraries, Tools and Updates

🆕 New Gems and Repos

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

🆕 Collin Donnell created a new gem → rezy - “A simple Ruby gem for generating resumes from YAML data files using customizable templates“

🆕 Mikkel Malmberg announced a new gem → social_construct - “Generate social sharing images directly in your Rails app“

🆕 Obie Fernandez announced a new gem → desiru - “A Ruby implementation of DSPy, the framework for programming—not prompting—language models. Build sophisticated AI systems with modular, composable code instead of brittle prompt strings.“

🆕 David Heinemeier Hansson announced the availability of omarchy - “Opinionated Arch/Hyprland Setup“

🆕 Juraj Kostolanský announced a new gem → katex_on_rails - “Convert LaTeX math formulas to HTML using KaTeX in Rails“

🧰 Updates

🧰 Joel Hawksley announced a new version of view_component - “A framework for building reusable, testable & encapsulated view components in Ruby on Rails.“

🧰 Vitaly Slobodin announced a new version of zed-extensions/ruby

🤝 Related (but not Ruby-specific)

🤝 Adrian Marin shared a tip for debugging JS assets → “Hide extension URLs“

🤝 Obie Fernandez shared a Claude Code slash commands tip

🤝 Git Hub announced the Github Copilot coding agent. For more details check the following blog post → Assigning and completing issues with coding agent in GitHub Copilot

🤝 Jorge Manrubia shared what he learned from writing code against an LLM to get deterministic outputs from natural language

More content: 📚 🗞 🎧 🎥 ✍🏾

🗞 Newsletters

🗞 Ruby On Rails published a new edition → BacktraceCleaner gets first_clean_frame and first_clean_location

🗞 Ruby Weekly published a new edition → A new Rails podcast launches

🗞 Hotwire Weekly published a new article about Week 26 - Multi-step forms done right, Turbo-friendly tables, and more!

🗞 Matt Solt published a new edition → Ruby AI News - June 24th, 2025

🗞 Ruby Central published a new edition → Ruby Central's OSS Changelog: June 2025

🗞 Awesome Ruby Newsletter published a new edition → Issue 475 - A Deep Dive into Solid Queue for Ruby on Rails

🗞 Women On Rails Newsletter International Version published a new article about  Newsletter WoR #63: quitting your job after a week?, Google outage, a bingo for front-end devs

🎧 Podcasts

🎧 IndieRails published a new podcast episode → Rhiannon Payne & Justin Bowen - Agents of Change

🎧 Ruby on Rails published a new podcast episode → Rosa Gutiérrez & Solid Queue

🎧 The Bike Shed published a new episode → 466: All about keynotes with Aji Slater

🎧 Remote Ruby published a new episode → Adventures with Puny Code and Other Programming Puzzles

🎥 Videos

🎥 Andreas C. published a new video → Rails 8 Chat App – Part 4: Copy to Clipboard with Dispatch and Flash Messages

🎥 Mikkel Malmberg published a new video → Rails Claude Code programming

🎥 Joe Masilotti published a new video → Route Decision Handlers

✍🏾 Articles

What’s new 🆕

🆕 Petr Hlavicka published a new article about Versioning API requests

🆕 Vladimir Dementyev published a new article about The Hotwire-Rails summit, or interactive multi-step forms at peak UX

🆕 Rails Designer published a new article about Creating a Simple Embeddable JavaScript Widget (for Your Rails App)

🆕 Lucas Geron published an article about A Journey Through the Greatest Ruby on Rails Milestones

🆕 Darius Pirvulescu published a new article about Safeguard against DoS in Rails helper

🆕 Scott Werner published a new article about MCP: An (Accidentally) Universal Plugin System

🆕 Planet Argon published a new article about The Hidden Costs of Technical Debt in Rails: Lessons from Client Projects

🆕 Paweł Świątkowski published a new article about Putting Hanami in the browser via WASM

🆕 Jess Brown published a new article about PostgreSQL VALUES Clause: The Hidden Gem for Batch Updates

🆕 Charlie Tarr published a new article about Using RubyLLM to supercharge your Rails apps

🆕 Avo published a new article about Adding llms.txt to a Rails application

🆕 James Hibbard published a new article about Erase Sensitive Files from Git History with git-filter-repo

🆕 Jeremy Smith published a new article about Making Rails delegated_type’s clearer

How-TOs 📝

Alexey Poimtsev published a new article about Namespaced Pundit Policies Without the Repetition Racket

Related ✍️

Dave Thomas published a new article about Simplicity, Agility, and Agency

Tim Riley published a new article about Meet Tim and Sean

Rich Steinmetz published a new article about The new AI wave, Rails Builders III and Mom Test reading group

Adrian Marin published a new article about RailsConf '25 and the Imposter Syndrome

Jon Sully published a new article about Autoscaling: Proactive vs. Reactive

Test Double Blog published a new article about From resistance to results: Why agentic coding requires a new mindset