Just went two streets away, my eyes are literally burning.🥵

When reading one extra byte saves a lot of extra work: github.com/ruby/ruby/pu...

❤️

I realized it has been ~1.5 years since I concluded my series of post on JSON optimization. So I got curious how much faster it became since then. 2.7.2 was the last version before I took over maintainership. 2.9.0 was the version I released at the end of the blog series.

Not sure if something changed recently, but I've received a stream of much higher quality security reports in the last few days, but there' still something off with them. I suspect they're AI assisted, but can't be certain. Unlike before, they're easy to read, concise, well explained etc. 1/3

It's the Rails 8.2 default yes. No need for backporting, the feature is entirely in Bootsnap, so you can just upgrade to latest Bootsnap, and copy the couple configs: github.com/rails/rails/...

This one feels good. No more stupid comments at the top of files. At least in one repo.

Ruby 4.0.4 Released www.ruby-lang.org/en/news/2026... This is a routine update that includes bugfixes. We recommend upgrading your Ruby version at your earliest convenience.

Made a new blurg post about AI + OSS security. I was going to just complain on here, but I figured a short blog post would be better for my complaining 😂 tenderlovemaking.com/2026/05/06/r...

I thought this was interesting and makes sense www.agwa.name/blog/post/fa... I might add implementing FCGI support in Pitchfork on my infinite pile of things to do eventually.

I chuckled www.france24.com/en/americas/...

Can you drop a link to this survey in your Discord/Slack? railsdeveloper.com/survey/

Hacking on Rails, with a pint of “Hakodate Ruby on Ale”

I sat down with Brian Scanlan to explore what “AI-first” development actually looks like inside Intercom’s 15-year-old Rails monolith. www.youtube.com/watch?v=ADBs...

What are the odds to find a beer from your favorite Québec brewery in a random Hakodate bar ?

I wrote some more as a way to fight jet lag, hopefully it's still readable 😅: byroot.github.io/ruby/bundler...

With the new job, I didn't get much time or energy to blog lately, but I figured I'd use the various downtime while traveling to Ruby Kaigi to write about some of the things I worked on recently: byroot.github.io/ruby/perform...

It's just a proof of concept, but this is how I wish Rust extensions for Ruby were written: github.com/tenderworks/...

My face when I see a gem with rb-sys in its dependencies

Ruby 4.0.2 Released www.ruby-lang.org/en/news/2026... This is a routine update that includes a bugfix in YJIT for NoMethodError on Puma. We recommend upgrading your Ruby version at your earliest convenience.

Something I'm not yet clear on how to handle these days is what to do with obvious LLM PRs on Open Source projects. When a human submit a PR that needs some work, often enough I'll go through rounds of review to progressively get the PR in a mergeable state.

TIL that STORES migrated to Pitchfork 🙂 www.youtube.com/watch?v=vOH0...

Looks like I can procrastinate some more, I found a way to debug it without rr: github.com/ruby/json/pu...

I need to stop procrastinating and buy myself a proper development machine that run on Linux, and learn how to use the rr debugger. I keep running into issues that would be way easier to debug that way...

🎤Meet our next speaker: @byroot.bsky.social — Senior Principal Engineer @ Intercom, Rails & Ruby Core team member, Ruby Prize 2022 finalist. With 10+ years on large Ruby apps, he’s a long-time committer shaping the community. 🗓️ 15-16 May, 2026 📍 Sofia: balkanruby.com/talks/32

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

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

Read on Slack: "And yeah schema based multi tenancy made me question my career choices" 😄

"Our data backs up other findings that Ruby applications are generally less I/O-heavy, spending as much or more time on CPU as they do waiting on other services or database requests." www.datadoghq.com/blog/ruby-pe...

Ruby is in a trolling mood today 😂

Happy to share that today I'm starting as senior principal at Intercom!

Also please don't restrict bundler and ruby versions like `bundler < 3.0` and `required_ruby_version < 4.0` 🙏

I find it interesting that every time frozen string literal is discussed, symbols are brought up. It seems like symbols purpose and semantic isn't well understood. Isn't there a good post explaining what they are and how they're meant to be used?

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...

Back when I joined Unboxed in 2014 there was a bug in the action_caching gem that I fixed for a colleague on another project and released a new version. When he thanked me, I said "no need, I got paid for this - if you'd asked me at the weekend I'd have done it for free" 😂

I found some relic while emptying my father’s house.

Ok but to what end? What would they work on? How would they decide what need to be done, or need not to be done? That's what I tried to explain in my last post. The biggest strength of open source is that it's the people experiencing the problem that get to work on the solution. 1/3

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.

I wrote about some of my thoughts on the lessons we can learn from the RubyGems situation and how we can move forward. blog.peterzhu.ca/open-source-...

Called it!

Ruby Central’s made some tough… and yeah, rough… calls lately. I still think they deserve a second act. robbyonrails.com/articles/202...

Thank you for writing this, especially: > Aaron got nerd sniped into making Bundler faster, and now he’s being called out for supposedly being part of a hostile takeover? Give me a break.

I tried to explain why I don't believe the recent accusations toward my former teammates, as well as how the Ruby and Rails Infra team at Shopify operates and why it can be trusted. byroot.github.io/opensource/r...

This is by far the most sensible take ever since all this mess started. Glad there are still some people capable making the difference between unsubstantiated conspiracy theories and proper reporting of facts. Thank you ❤️

Delighted to share this deep dive into how Doctolib's team has been speeding up their test suite...when they have 10 databases, 84k tests, with over 3M LOC. onrails.buzzsprout.com/2462975/epis...

The more I think about this, the more I wonder if the best way forward is to transfer rubygems/bundler ownership to the Ruby org. Then keep responsibility of rubygems.org. After all, rubygems is the only default gem that isn't owned by ruby itself: github.com/ruby/ruby/bl...

We've reached the point where "security researchers" now unironically answer on Hackone with "ChatGPT said:"