Ruby Weekly Issue 752: May 29, 2025

#752 — May 29, 2025

Together with

▶ The RubyKaigi 2025 YouTube Playlist — Ruby's 'home' conference, RubyKaigi, is an important entry in the Ruby event calendar. 2025's event took place last month featuring a keynote from Matz and talks from Tenderlove, Koichi Sasada, and many others. There are 57 talks (in English and Japanese) so you’re sure to find something interesting, but I'll link a few highlights below.

RubyKaigi 2025

A FEW RUBYKAIGI TALKS:

Matz's keynote is in Japanese, though you can turn on subtitles. It's a high level talk covering thoughts on AI and static typing, and Matz teases Ruby 4.0 again with a "maybe".
Takashi Kokubun gave a talk, in English, about YJIT, focusing on deoptimization.
Staying on the JIT theme, Maxime Chevalier-Boisvert spoke about ZJIT, a newer attempt at creating a Ruby JIT that was recently merged into Ruby.
I also found talks on running Ruby in WebAssembly, modular garbage collectors (related article), inline RBS comments, and Ruby debugging to be valuable. We'll link to more talks in future as I get through them.

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A Series on Enumerable’s Loveliness — A celebration of the lovely expressiveness of Ruby’s Enumerable methods for solving problems. He then ran two rounds of benchmarks, concluding that writing expressive, readable Ruby first is a good idea, but it never hurts to benchmark and tune afterwards.

Andy Croll

💡 As an aside, it's often worth a browse through Enumerable's methods – I'm always reminded of something useful that I forgot (or even a new addition).

IN BRIEF:

📺 Ruby Central's Rihannon Payne ▶️ has interviewed DHH, covering high level topics including AI, different Rails events, The Rails Foundation, and more. We also discover David will be dropping in for a fireside chat at the final RailsConf this summer.
Over on X, Sam Saffron notes that GCC 15 may be causing compilation errors for many native Ruby gems.
Also on X, 37signals' Jorge Manrubia teases a big upgrade to Action Text – essentially a 'drop-in replacement that will take rich text editing to the next level in Rails', all without Trix.

Concurrent Web Crawling in Ruby with Async — Even if you don’t need to crawl anything, more Async demos in the wild is a good thing.

Joseph Izaguirre

Custom Domains and SSL in Rails Development — Using custom domains and SSL in local development not only looks nice, but can make a variety of ‘secure context’ only browser features work too.

Exequiel Rozas

🧠 Build Intelligent Applications with Rails — Learn about the strengths of Ruby and Rails in the AI era and why we choose them for AI applications development.

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📺 How DHH Solved Deploying to Production – A well produced 10 minute video on the Kamal deployment tool. DevOps Toolbox

📄 Real-Time Communication with Twilio 2-Way SMS in a Rails App Rohan Dhalpe

📄 Streamlining the Creation of New Rails Apps with Templates Alessandro Dias

📄 Create a Markdown-Powered Textarea with Stimulus Rails Designer

🛠 Code & Tools

🤖 TinyMCP: Make Local MCP Tools in Ruby and Easily Serve Them — On the AI in Ruby front, create Model Context Protocol servers quickly with this tiny library.

Max Chernyak

Retest 2.3: A Simple Command Line Tool to Watch File Changes — Retest is made to be easy to install and work on any Ruby project to make your testing workflow more efficient.

Alexandre Barret

Safely 0.5: Rescue and Report Exceptions in Non-Critical Code — The idea here is that while you may want to know about failures and exceptions, they don’t necessarily need to result in crashing out.

Andrew Kane

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Slack Ruby Client 2.6 – Access Slack's Web, Real Time Messaging and Event APIs in Ruby or via a CLI.
Slowpoke 0.7 – Rack::Timeout enhancements for Rails, such as for safer service timeouts.
Active Storage Validations 3.0 – Library for adding validations to Active Storage attributes.
📊 PgHero 3.7 – Postgres performance dashboard as a Rails engine.
🤖 OmniAI 2.8 – A standardized API for multiple LLM platforms.
📊 Gruff Graphs 0.27 – RMagick-based chart rendering library.
Phlex Rails 2.3 – An object-oriented alternative to Action View.
Sidekiq v8.0.4 – The background job processor.
🤖 Raif 1.1 – An AI framework in a Rails engine.
Literal 1.8 – Run-time type checking for Ruby.
Stripe Ruby Library v15.2.0

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📢 Elsewhere

A quick roundup of some other interesting updates or useful resources in the broader developer landscape:

The Google Go team put together ▶️ a fantastic Google I/O talk about Go covering both a basic sales pitch for the language, but also everything new in the language in recent times. A good look at the state of Go in 2025.
📺 If you're confused by the plethora of popular JavaScript frameworks, the creator of SolidJS has put together a handy ▶️ ten minute explanation of how React, Angular, Vue, Svelte and Solid differ.
A developer put Node, Go, Rust, C++, Java, Python and Erlang under an intensive stress test (no Ruby, alas) to see how they handle being overloaded. Guess which one survived longest..
The Deno team put together a fantastic timeline of JavaScript's history to celebrate JavaScript's 30th birthday this year.
🎉 Apropos of nothing, today is React's 12th birthday.