Jean Boussier @_byroot
Rails core, Ruby committer, Senior Principal Engineer at Intercom. Bsky: https://t.co/05cdHJkcO4 Mastodon: @[email protected] github.com/byroot Toulouse Joined April 2022-
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@lewispb @tobscher - Boot time is a key metric for me. - Dependency on the DB during boot is also a no-no - Not sure it scales well on larger monoliths - I'm worried of maintenance cost.
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Jean Boussier retweeted
🚂 Ruby Ireland is back! Agents of Concurrency - September 10th at @fin_ai Jean Boussier makes the case for multiprocessing in Rails, while Ryan Sherlock gets into shipping AI agents on Rails - fast, repeatedly, and in production. Thx Fin! RSVP 👇 meetup.com/rubyireland/ev…
A quick followup on Ruby Hashes byroot.github.io/ruby/performan…
@watson1978 Yeah, I saw your issue, and I generally agree. But I changed the implementation several times, so not really in a rush to upstream it in Ruby, as just yesterday it seems another even faster one dropped vitaut.net/posts/2026/yy-…
I'll probably release the final 3.0.0 version early September, so if you got time please try the RC1 and submit any feedback you may have: github.com/ruby/json/rele…
@_pleasework Thank you. I'll start sending PRs to these project to unlock `json` 3.x
@TechWithMatteo 99% of the changes are just removal of deprecated APIs, so I don't really expect bugs. #famouslastwords
A history of Ruby's Hash tables, and how we can make them use less memory: byroot.github.io/ruby/performan…
While it has been 18 months since I blogged about it, the json gem performance has improved quite significantly since, so now is a good time to add a few more parts to my JSON series: byroot.github.io/ruby/json/2026…
@jdxcode @nateberkopec For the record the first name I reached to was forklift, but it was already taken.
This one feels good. No more stupid comments at the top of files. At least in one repo.
@paracycle @Dagnan @vipulnsward To be fair to this article, the very first version of "chilled strings" did return true when `frozen?` was called on it. It was changed a little bit after that post was published.
@Dagnan It's not, though. It's still opt-in even in 4.0.
@marcoroth_ About the boot performance, as discussed in Hakodate, I'd be interested to look in what it would take to support precompiling templates with Bootsnap, making parsing performance less important.
Jean Boussier retweeted
I wrote answer letter: github.com/ruby/rubygems/…
I wrote some more as a way to fight jet lag, hopefully it's still readable 😅: byroot.github.io/ruby/bundler/2…
@samsaffron And right now we have no way to specify that in the gemspec, all we can do is raise in your face during boot, which isn't ideal.
@samsaffron Well, the proposed `ban` directive does answer that. But while I didn't list it here, optional dependencies are indeed a long requested feature. E.g. in Active Support, we don't force you to install `dalli` or `redis`, but if you do it has to satisfy a certain minimum version.
I wrote some more as a way to fight jet lag, hopefully it's still readable 😅: byroot.github.io/ruby/bundler/2…
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