I used Turbo C quite a bit in the 90s. That color scheme with the blue background brings so many memories. youtu.be/xtKcagvogSA?...

Just published this year's version of my "Ruby Changes" project: a full annotated changelog for Ruby 4.0: rubyreferences.github.io/rubychanges/... Goals: Full, comprehensive, concise, well-structured. Examples, explanations of reasons, links to docs, all of it.

Will the future develop some sort of declarative language from which LLMs can produce implementations?

I’m very honored and grateful. Rails has given me a lot, and giving back through open source has always felt like the natural response. Looking forward to continuing the work. ❤️ I wrote a short note on my blog: marcoroth.dev/posts/rails-...

Yesterday was a nice and special day. Now enjoying Zurich by walk a bit before my flight.

We were very proud to present @marcoroth.dev with the Rails Luminary Award 2025. And yes, I was on a secret mission to Zurich 😀. rubyonrails.org/2025/12/17/m...

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

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.

Amazing! I will actually be in Zürich this week. See you all there!

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-...

AI PR reviewer does not read my code comments. This starts to feel too human.

"You only live once". As far as we know!

We are going to see Tristan und Isolde in January, and are preparing for it these days. Oh man, the music is always in flux, never resolves, four hours of tension without rest. When a resolution could land, you are taken elsewhere. And the singers, so demanding, don't know how they can do it.

The next version of the Herb Language Server will ship with "unnecessary diagnostics" for all ERB control flow tags! It dims any branches or expressions that are unnecessary, helping you quickly see which parts aren’t used or executed. 🌿

My birthday made me suspect the horoscope was a scam very early in my life. I was born on the 20th of January. Being a small kid I noticed in some magazines I was Capricorn and in others Aquarius. So I had two different predictions! WTF!!!! The system was obviously inconsistent. Done with it.

So, Aston Martin did not do BLACK FRIDAY. I was expecting 30%–40% off or something. Maybe next year.

In Ruby, `::` is an _operator_ and it is _binary_. So, A::B::C::D goes by pairs (like `+`) and performs intermediate lookups: ((A::B)::C)::D You can actually write it like that. More on that in my forthcoming book about constants in Ruby I am committed to finish within this century.

Letting Puma auto-set your worker count is the easiest way to go for 90% of usecases. Currently, you can only do that with WEB_CONCURRENCY=auto, but we'll also make this possible in the next puma version by using `workers :auto` in your puma.rb.

This has been the year of learning about nutrition and tracking of energy balance and macros, which I do in nothing with LLMs, as the image shows. For that I have developed a simple system based on many manually maintained aliases of products -> nutrition tables.

Unison 1.0 is out just before AoC? Coincidence? Destiny?

`Object#extend` is conceptually "include in the singleton class". I have missed a few times "prepend in the singleton class".

I have seen in the news that a copy of Superman No 1 has been auctioned for more than $9M. Value is really in the eye of the payer. And that is why "margins", "production costs", etc. are often missing the picture. Generally speaking, goods are sold for whatver people are willing to pay.

In "JSON must be valid UTF-8", the word "valid" is superfluous.

Came across two new job postings for Junior Rails positions in one day! jobs.lever.co/commonlit/7e... jobs.rubyonrails.org/jobs/8903-ju...

Could we distribute to world leaders Kubernetes HOWTOs or modern web stack tutorials so they get distracted and stop looking for confrontations?

Herb v0.8 is here! 🚀 The biggest release yet, packed with new language bindings, Linter Autofix support, Linter Fix-on-Save, a new `.herb.yml` config file, formatter improvements, Tailwind Class Sorting integration, and a ton of performance, tooling and LSP improvements! 🌿

"Disclaimer: this post was proudly written without the help of AI, so deal with my English grammar, but the author here took the time to write every single word" LOL, have thought about something like that for my PRs, patches, and the book I am (slowly but humanly) writing.

#Ruby namespace will be renamed to `Ruby::Box` An MR about this was merged to the Ruby master a couple of days ago github.com/ruby/ruby/p... by @tagomoris.bsky.social

In the last days I have counted breaths during meditation (zazen). Was curious about the rythm. Turns out, I seem to do 10 every 4 minutes quite consistently. (Have done meditation for decades, with hiatuses.) Also I often feel my heart beating, probably something related to increased vagal tone.

Guess who's got two free tickets to give away for the first edition of @sfruby.com? 👉 🙋‍♂️👨‍💻 👈 Just comment below the answer to this riddle to get a chance to get one. p [ [65, 118, 111], [105, 115], [116, 104, 101], [98, 101, 115, 116] ].map { |w| w.map(&:chr).join }.join(' ')

As a consultant, I have seen several takes on service objects in projects. This gem masterfully gathers best practices into a nice and coherent design.

Make sure to also read this amazing Gist “Ruby: The future of frozen string literals” written by Xavier Noria @fxn.bsky.social. If you read these 2 resources, should know everything there is to know about frozen string literals in Ruby. gist.github.com/fxn/bf4eed2...

Watching the keynote "giants, standing on the shoulders of" by Daniel Stenberg (cURL's maintainer). daniel.haxx.se/blog/2025/09... #recommended

The post has some stereotypes, but essentially there's truth there. A good novel takes you to other places, in a broad sense of the word. And that is an experience in itself. (Reading "The Temple of the Golden Pavillion" these days, after my trip to Japan.)

If you want to make change or add new feature to Ruby, I suggest to read www.a-k-r.org/pub/howto-pe... Ruby's decision-making process isn't democratic or based on voting. It's more like a game of persuading Matz and Module maintainers.

I was recently reminded that not everyone fully understand what the frozen string literal magic comment is about. So I figured it was the occasion for another deep dive. byroot.github.io/ruby/perform...

Hello, friends! After 10(!) years of #AdventOfCode, I've made some changes to preserve my sanity: there will be 12 days of puzzles each December (still starting Dec 1) and there is no longer a global leaderboard. Read more: adventofcode.com/2025/about#f... adventofcode.com/2025/about#f...

Rails 8.1 ships with a feature I wrote for Gusto as a monkey patch they decided to contribute: the ability to deprecate an association. This is a first. Consulting is separate from OSS for me, access to Rails is not part of my value proposition, and I do not pursue "being paid for doing OSS".

I use a modified version where I set `$debug` in a test causing an issue, then check it in the code to put debugging info

Debug technique I use in some occasions: Define global variable $foo where you collect stuff, maybe in different places. Then, at_exit { pp $foo }.

Here I am, discovering unheard details in my fav tracks after upgrading the headphones DAC/Amp.

When people complain Shopify is too prominent, only main company donor in RC, etc. WTF folks. As if that was their choice! Where are the other companies pushing Ruby and Rails with real money and resources to be on par? Talk is cheap.

#hanami for #rails developers is a 4-part series showing how to learn Hanami: ryanbigg.com/2025/10/hana...

Generally speaking, ancestor chains do not belong to public interfaces. Say, if an instance of Foo::Bar provides method `foo`, generally speaking, whether the method comes from the class or a mixin is not a concern of the user. That, and the module constant, do not belong to the public contract.

The one and only D'Angelo passed away today (51yo, pancreatic cancer). He was the best. Ledisi did Brown Sugar as a tribute to him.

There we go.

Context for my recent RBS posts. To use an API, or read source code, you need to know what do methods accept and return. And that is orthogonal to dynamic typing. I have always annotated my Ruby APIs internally, including private methods.