My daughter, who is into genetics, loved the logo of Helix. That's all I need, installing.

Do you know that feeling some people have, I'm done, now I have to write tests? now I have to write docs? I believe that is going downhill with AI. Now, for some, _understanding_ has friction. People generate code, PRs, peers the review. And *owning* any of that starts to feel costly for some.

Please give github.com/jhawthorn/ba... a try

TIL that Newton already predicted light bends with gravity (not a physicist!). What GR predicted was a different magnitude (2X). I am reading "Proving Einstein Right", which explains all it took to verify that in the early 1900s.

Please, excuse me for interrupting your pre-apocalyptic AI timeline. I have the analog and mundane fact to share that I am letting my hair grow, and updated my avatar accordingly. I don't know yet up to which length or shape it is going to be, but that was my profile pic in CPAN, just saying.

I congratulated Claude on a patch, they said it had been very satisfactory to have solved one specific tricky part of the solution. The singularity is around the corner my friends.

Advanced Domain Modeling Techniques for #RubyOnRails – Part 1: Aggregating models into value objects with `composed_of`. By @julianrubisch.at www.rorvswild.com/blog/2026/ad...

The CasNum in HN implements what's called "constructible numbers" in math. You study them, and together with some field theory, you are able to see that the classic Greek problems that remained unsolved for hundreds of years (like squaring the circle) are impossible. That was 19th century math.

Just realized the halting problem is decidable for functional programs 😂

I also struggle with this, and not only in OSS. Who I am talking to? Who deserves the credit? Because you can use an agent as a tool to speed you up, still having full agency about what is going on, but a different thing is talking to someone that has not made the effort to understand the problem.

Gasp, got my first smartwatch 😅

LLMs make mistakes. Well, what about our bloated designs, degraded code bases, need for mentoring, need for code reviews, and busy exception tracking services say about us?

I read in pragprog's newsletter that AI seems to be reducing people's need for books. I guessed that. But there is something that does not add up to me. If you don't train, you won't be able to spec, steer, and review. Is like, a hole in knowledge is forming world-wide, just give it time.

Awesome episode of Star Talk on AI with Nobel laureate Geoffrey Hinton. AIs do not hallucinate, they _confabulate_, just like humans do. They may sense you are testing them and adapt their responses. A lot of stuff in one hour and a half of conversation. startalkmedia.com/show/the-ori...

Agentic dev is mindblowing, we could not dream this was remotely possible. But it is less fun. My OSS is written by hand. Because I program not only as a means to solve a problem, but to enjoy the process. Just like motorbike touring is about enjoying the ride, no just going from A to B.

mise now supports precompiled Ruby binaries (learned this from @nateberkopec.bsky.social's newsletter). Right now you have to opt-in in the config file, but it will become default later. See: mise.jdx.dev/lang/ruby.ht...

The organic neural network inside my cranium has generated Zeitwerk 2.7.5. This is a maintenance release, performance improvements, uses `Dir.scan` if available (only in Ruby `master` for now), docs, and quite a bit of internal work.

Wonder if mobile app stores are getting an avalanche of AI-generated apps

Are we going to generally see less interest in learning new programming languages? Even less motivation for creating new ones?

I think autoload_relative is a big deal, not for Zeitwerk (Zeitwerk already uses absolute paths exclusively), but for Ruby. My personal hunch is that $LOAD_PATH lookups should be eliminated, and Kernel#require deemphasized. Let me elaborate.

Just landed in Ruby master: Dir.scan: List directories with entry types using half the syscalls (mod :unknown), by @byroot.bsky.social: github.com/ruby/ruby/co... autoload_relative: Like require_relative, but for autoloads, by @ioquatix.bsky.social: github.com/ruby/ruby/pu...

When thinking about the new **experimental** Ruby::Box, you cannot have a fork mental model. A box is a blank slate that inherits nothing from who created it. You start from scratch, no gems loaded (conceptually), no monkey patches in place, etc.

Cool one. I have always said: Your monolith is not such, you already have a SOA. You did no write Redis, Sidekiq, or the error tracker, but SOA is about splits, responsibilities, communicarion, etc. If the service was developed in-house or not does not matter. www.iankduncan.com/engineering/...

Is this what drawing an owl looks like for Gods? Kickoff meeting for a PoC universe? (From Quanta)

Pinky promise this is gonna to be the coolest shit you’re gonna see today www.makingsoftware.com By Dan Hollick

In agent-based development Waterfall meets Agile.

Something that is proving great for my supervised/interactive agent-based work is to provide the source code of the relevant dependencies. Like, the source code of Active Record is here, and of this related gem is here (bundle show), ..., please study them in depth. Then, we plan.

unusual job perks: getting to watch @evanphx.dev argue with a robot about kernel memory semantics 🤣🍿

At the same time, we should be cautious about extrapolating from the previous world. When the printing press was invented, people worried that memory skills would deteriorate, as oral transmission faded And here we are, in a different world. (BTW, did those people ever play the telephone game?)

As most people, I am figuring AI out. Not AI per se, but my related personal feelings. You won't grow as before. Can a junior develop seniority to review AI generated solutions? Maybe? To be seen. The builders are in a paradise, the thinkers... not as much fun. www.jernesto.com/articles/thi...

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I guess my Stevens from 2001 could be updated 😅.

@eregon.me @byroot.bsky.social I am writing that extended directory listing in C in Zeitwerk itself, with fallback to stat functions if needed, and to Ruby as last resort. By being internal it can ad-hoc, like, filter hidden files out, and only return :file, :directory, or nil. That is all I need.

While doing my cardio I was like, OMG, who is this? How much does it take to be able to solo on tenor like that?! At the end of the piece, conductor says: "Ladies and gentlemen: Michael Brecker". So, it just takes a lifetime plus being among the best of all time. open.spotify.com/track/1DmLu6...

I have it, but I might discard it. The new behavior creates the dummy modules at scan time, descends to set autoloads, and recurses. Traversal stops at .rb files. I have checked booting a huge Rails app: from 8K autoloads set we go now up to 30K, which increases boot time in dev/test by 10%.

To me, the concept "vibe coding" suggests superficial involvement and lack of agency. If you used AI to help in a process that *you own* (generating, understanding, whatever), that is different. That is not vibe coding, it is you producing the same patch with new tools.

I have started "Infinite Jest". Let's compare forearm circumference before/after.

I am working these days on a change to Zeitwerk that will remove a hack. When I wrote the gem, autoloading had been brittle for more than a decade and I wanted to mimic the classic autoloader as much as possible for users' peace of mind. But there was a corner case that had no clean solution.

If you keep working on something, turns out eventually you may finish it. So it is with "Master Hotwire" book! I've finally finished it and it's available in Web, PDF and EPUB formats at masterhotwire.com I started working on it a bit under 2 years ago. :)

someone built a Linux CPU scheduler that makes scheduling decisions based on planetary positions and zodiac signs it actually works haha:

Tonight's the night: Wagner's "Tristan und Isolde" at Gran Teatre del Liceu (the Opera House of Barcelona). So looking forward it, I have never seen this masterpiece live. Production is top, they perform at the Met in March.

Programming is 2/3 dealing with the non-happy path.

The SF Ruby workshops are out! 🌁🎉 In my workshop, we did an interactive dive into Rails' source, so you can find your way around the unstructured space that is most codebases. My style is impromptu and some attendees said it's not for everyone, but that's ok :)

This was an interesting read. I taught Perl at the University of Barcelona for 7 years, and in the exams my students had their editor of choice in computers connected to Internet, they could check docs, do web searches, etc. That is the real life I was preparing them for. ploum.net/2026-01-19-e...

There's this story about Paul Dirac in which he is in a conference or something, and someone approaches with small talk: "Lovely weather today!". He leaves the room, goes outside, checks, returns, and says "Yes". Well, I may have done something in that line 😂. True statements above all folks!

Wonder if code generation is going to be able to distinguish private APIs that have public visibility in langs that do not support lib or package levels. Because, up to now, the contract was: The public interface is in the docs, anything else is internal. @antirez what is your experience in C?

I don't have many opinions formed on the whole topic of AI just yet. But I believe writing detailed specs for code generation of non-trivial things, like writing good tests, need flight hours. Plus, you need flight hours for validation (at least for now, though some people directly push).

New blog post: Don't fall into the anti-AI hype. antirez.com/news/158

Before the internet, your references were local. Then, you could interact with world-class experts. In IRC, USENET, mailing lists, easy access to the best books, etc. I believe that exposure raised the level. Now, we are going to have an expert at our fingertips. The level is going to skyrocket.

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