5. Married, built a house together and having grandchildren 😉

I'm sorry about the wide angle.
I just tried to get everybody on the photo 😉

Let's gooooooo to #Hakodate

#RubyKaigi #RubyKaigi2026

@jrubyproject.bsky.social @headius.bsky.social

Yes and yes

You might have heard that one before, but if there's a slight chance that you didn't: now you have 😅

@tenderlove.dev I have a personal question:

In your career, was it always backend development or was it also frontenderlove? 🤔

A computer screen displays code for a Monte Carlo simulation using pizza. The background features a grid with pizza splats. The code includes a Python function, `estimate_pi_from_pizza_splats`, with calculations to estimate Pi. On the screen, a message reads: "After 10,000 throws, Pi is served: #result" where #result represents a variable.

The standard libraries already include π. But where’s the fun in that?
Happy #PiDay! 🍕

I spotted a few 🐕 Mochi stickers here btw 😉

a woman in a pink dress is smiling while driving a pink car ALT: a woman in a pink dress is smiling while driving a pink car

Token?
Is this the doll-thingy that little kids play with? With that movie?

Tobarbie and token?

What if the US government forces US AI companies will cause foreign country software products to be insecure?
Or making it steal internal data via AI agent access?

What if 99% of the PRs looked just fine that we got used to also merging the 1% that harms us?

And I'd be fine and good with if we could trust the code that it's producing 100% of the time.
And we just can't assume that.

What if it's working 95% of the time and a malicious actor would influence to include a backdoor in a security critical library?

Mental laziness will cause limited understanding of what code is doing.

Currently it looks like we're creating a generation of developers who'll be excellent in creating effective prompts but losing the ability to understand what that produced code is actually doing.

Congrats. Looking forward to hearing your talk

Young man, watch your language!

Never would I have thought that I'd read such a dirty word in your post… like Haskell

a raccoon is standing next to a metal bucket of water Alt: a raccoon is standing next to a metal bucket of water

Fun fact:
Because they tend to wash their food, the German term for them translates to "washing bear".

TruffleRuby kicks off the year with a new website, a new release, and a blog post to go with it! 🎉
truffleruby.dev/blog/truffle...
Many changes:
* New versioning
* Thread-safe Hash
* No system dependencies anymore
* Installs in 2 seconds
* Development is now fully in the open

Now you know why it's considered strange! ☝️

Wow! 👏🏻

A cute, glowing ruby gem with a smiling face, rendered in a pink-purple neon style on a vibrant background. It represents the Ruby language with a Charm-inspired, glamorous CLI aesthetic.

Alongside the Ruby 4.0 release last week, I published charm-ruby over Christmas, bringing @charm.land's excellent terminal UI libraries to Ruby.

A full TUI framework, reusable components, styled output, forms, markdown rendering, spinners, charts, and a lot more!

Demos below ⬇️

Implement moving Immix in MMTk by peterzhu2118 · Pull Request #15744 · ruby/ruby This commit implements moving Immix in MMTk, which allows objects to move in the GC. The performance of this implementation is not yet amazing. It is very similar to non-moving Immix in many of the...

Ruby has a new moving GC. I just merged moving Immix in the MMTk Ruby binding. This is exciting as its the first GC that dynamically detects fragmentation in the heap and performs defragmentation. Performance isn't too great yet but I'm working on it! github.com/ruby/ruby/pu...

Feel hugged dear Rosa 🫂

Catnificent! 🤩

The Rails Delegated Type Pattern Principal Programmer Jeffrey Hardy unpacks the Rails delegated type pattern that powers Basecamp and HEY.

This video series just launched, and the first guest is one of my dearest workmates, one of the best programmers I've ever met, and someone I always talk about when I try to explain how incredibly special some people I work with are: Jeff Hardy ❤️

dev.37signals.com/the-rails-de...

Here's the clip for it from the Rails foundation:

Xavier giving Marco the award

I'm really happy to see @marcoroth.dev receive the 2025 Rails Luminary Award! 🎉

He’s done so much for the Rails ecosystem and the Ruby community.

Huge congrats, Marco! 🙌

And it's great to have @fxn.bsky.social and @amandabrooke.bsky.social around.

#rails #RubyOnRails #ReActionView #herb

Railshöck at Renuo, Wed, Dec 17, 2025, 6:30 PM | Meetup Hi everyone On a short notice I'll revise what I said before: THIS Railshöck will be the last one of this year… probably! *fxn* is travelling around, so I couldn't say no

Next week I’ll be at the last Railshöck of the year, in Zurich.

There will be talks by Alessandro Rodi, @marcoroth.dev, and yours truly. It's going to be a good one.

Being Switzerland, I am leaving my credit card at home 🤣.

www.meetup.com/rubyonrails-...

I have released Zeitwerk 2.7.4.

It improves the performance of some validation logic. This may be measurable in large apps with ignored directories and lots of autoload paths.

In Gusto's main application (+20 autoloaders, ~2000 autoload paths), the patch saves 800 ms of boot time.

But the good thing is, that if the days are shorter, you have to wait less long, right? 🤪

/s

I think the thing that used to make GitHub so compelling is that it was a product driven by engineers for other engineers

Address HTML markup issues reported by Herb by marcoroth · Pull Request #1797 · basecamp/fizzy This pull request addresses some HTML markup issues reported by the Herb gem.

This is brilliant github.com/basecamp/fiz...
🙇🏻‍♀️👏🏻 @marcoroth.dev