Gabi Stefanini

Black Friday is here - let that globe light up! This time with Shoppy, music, colors of your choice, nerdy stats - with gravity or without! Bfcm.shopify.com @Shopify #BFCM #shopify

Ruby on Rails scales from PROMPT to IPO. Token-efficient code that's easy for agents to write, and still beautiful for humans to review. rubyonrails.org

I benchmarked which language works best with Claude Code. Ruby, Python, and JavaScript came out cheapest, fastest, and most stable! See my article in detail: dev.to/mame/which-pro…

Here's the blog post anthropic.com/engineering/bu…

Convention over configuration set the path for 20+ years of great training data for AI to use today. Not only does this mean agents do great with Rails, but also that squishy humans can quickly and confidently review the output without a jungle of distracting boilerplate.

We've upgraded Todos => Tasks to help Claude complete longer projects Let us know if you have any feedback!

Looking forward to trying this one out! Cursor's visual editor was a miss. We have tried WYSIWYG HTML editors for decades, they never worked, and it isn't an AI problem. Figma showed the way to go and Pencil builds on that with an open file format and agent-aware extensions.🚀

Every new business eventually hits a wall. The great ones build ladders.

There's been a massive spike in sales emails that get basic details wrong, like the company I work for, *to my business email*. That's poor strategy *and* execution. Latest one was selling me a product so I can manage "my international team @37signals" (@dhh forwarding that to you lol jk). For all sales folks out there: please do better. That's an immediate pass for me, doesn't matter what you're selling.

Shopify is building the foundation for agentic commerce. Universal Commerce Protocol, which we co-developed with Google, is now live. UCP will make it faster for agents and retailers to integrate. It’s open by default, so platforms and agents can use UCP to start transacting with any merchant. Major retailers are already using it. Agents can handle everything from discovery to fulfillment, and support things like discounts, subscriptions, and loyalty programs. We’ve accounted for all types of commerce.

Ruby's new identity statement caught my attention: "A language where people gather, a site where people are visible." Source: ruby-lang.org/en/news/2025/1…

Ruby 4.0 is here! New ZJIT compiler, Ruby::Box namespaces, redesigned Ractor API, and Set is now a core class. Check out what's new #Ruby #Ruby4 #RubyLang #Programming #WebDev #OpenSource blog.saeloun.com/2025/12/24/wha…

The official Ruby documentation site is also renewal at this year. ruby-lang.org/en/news/2025/1… Thanks @_st0012 !

I recorded my gratitude for the most beautiful, poetic, and productive programming language ever made for Ruby's 30th birthday celebration in Tokyo. Thanks to @hsbt for the invitation 🙏

#rubyrelease30th I’d like to introduce Aliki, RDoc and docs.ruby-lang.org’s new theme 😄 railsatscale.com/2025-12-22-int…

I published the context and concept for redesigning ruby-lang.org. ruby-lang.org/en/news/2025/1…

I've been programming Ruby for damn-near a quarter of a century now, and it's been the honor of a lifetime to help it succeed with Rails. I'm eternally grateful to @yukihiro_matz and the core team for creating and perfecting this divine language.

Finally, ruby-lang.org/en/ has a new design.

🚨 Applications for our Canadian Summer Internships are officially OPEN! 🍁🧑‍💻 (Take my advice; don't sleep on this, submit ASAP) - Work IRL in Toronto, Montreal, or Ottawa - Contract from May - August - Work on real eng teams at scale, shipping real work - Impact millions of merchants and their buyers 🛍️ bit.ly/4p30tzS

Secret mission: To present this year's Rails Luminary award to @marcoroth_ in person, Rails Core member @fxn traveled to the Rails meetup at the @renuo office in Zurich. Here's how it went.

Happy 30th anniversary to Ruby, the language that made @Rails possible, and continues to inspire developers and contributors around the world. #rubyrelease30th #Ruby4