Headius Enterprises is the first company to offer professional support for JRuby users! Contact us to learn more!
Minnesota, USA
Joined July 2024
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Headius Enterprises retweeted
JRuby 10.1.3.0 is going to have some hefty release notes!
buff.ly/p6qy8Sz
Headius Enterprises retweeted
Exciting levels of activity in the JRuby repo lately! Heavily agent-driven, but our agent-focused docs and our policy of "you must understand your PR" has improved quality immensely. Big improvements coming for fiber scheduling and async. Jump in!
buff.ly/IqogKPd
Headius Enterprises retweeted
That's right, we've been working on JRuby for over 20 years. My work is now funded by JRuby support contracts via @HeadiusEnts and GitHub Sponsorships (github.com/sponsors/headius). Partner with me to keep this crazy dream alive!
@headius I've been getting into reading ancient Ruby mailing lists and found this for JRuby 20 years ago today 😁 marc.info/?l=ruby-talk&m=116…
Headius Enterprises retweeted
Oops, I will actually be speaking at XO Ruby in NYC this SATURDAY, October 10th, at the Metropolitan Pavilion. Will I see you there?
buff.ly/fKA2EMQ
I am excited to announce I will be speaking at XO Ruby in NYC this Friday, October 10th, at the Metropolitan Pavilion! XO Ruby events are focused on local Ruby communities, with a dirt cheap, one day, single track setup. Stop by and learn about JRuby!
buff.ly/fKA2EMQ
Headius Enterprises retweeted
We're happy to announce jruby-rack 2.0.0, updating our servlet/rack bridge to support the Jakarta Servlet API! We partnered with JRuby contributor github.com/chadlwilson and the @killbill_io Open Source billing and payments platform to make this happen.
github.com/jruby/jruby-rack/…
Headius Enterprises retweeted
I've pushed a Rails 8.1-compatible activerecord-jdbc-adapter 81.0.pre1 for JRuby + SQLite and it can at least CRUD a scaffold app! I've provided a template here for generating a new app:
(rails new -m <template>)
buff.ly/uUPEfJn
Headius Enterprises retweeted
Top three questions I got at #railsworld:
Q: Does Rails work on JRuby?
A: Yes, for 20 years now.
Q: Didn't JRuby already solve this?
A: Yes.
Q: Why aren't you speaking here?
A: I tried. Ask the organizers.
Headius Enterprises retweeted
Hello #railsworld! I'm here at the event running office hours and teaching people how to run Rails on JRuby. Find me in the vendor pavilion and grab a sticker!
ALT me at rails world
Headius Enterprises retweeted
It's incredible the amount of hacking required to get Rails to run in parallel with Ractors (and it still isn't there yet) when JRuby has been running Rails in parallel for decades. #railsworld
Headius Enterprises retweeted
Hello JRubyists! Anyone planning to be at tiny ruby #{conf} 2026 in Helsinki next week? We'd love to help you spread the word about JRuby to the Helsinki Ruby community! Get in touch if we can help you in any way!
Headius Enterprises retweeted
JRuby 10.0.7.0 is released! JRuby 10.0 is our stable line, receiving only bug and security fixes and critical performance improvements. This release tidies up another round of compatibility issues and updates a few standard libraries.
jruby.org/2026/09/21/jruby-1…
Headius Enterprises retweeted
JRuby 10.1.2.0 is released! JRuby 10.1 is our edge line, with more aggressive performance work and refactorings. This release improves perf of Ruby classes that extend Java, startup time on MacOS, and includes many stdlib updates.
jruby.org/2026/09/21/jruby-1…
Headius Enterprises retweeted
Would you buy JRuby swag to help fund the project? We recently did a run of JRuby "bird" t-shirts that have been very popular, but that stuff is expensive to give away for a little startup like ours.
Headius Enterprises retweeted
Slides from my Euruko 2026 talk "JRuby: Past, Present, and Future" are now uploaded. I believe the talks were also recorded, so hopefully video will follow soon. Great event, I hope to return for 2027 in Modena, Italy!
buff.ly/paSd5t9
While @headius is busy at Euroku 2026, we're looking back to an earlier 2026 conference appearance at @rbqconf ! Check out this talk on Expanding Your Ruby with JRuby!
youtu.be/ZqPTBLd_7z0?is=gv_Y…
Headius Enterprises retweeted
I recently had a nice chat with @eSquareDesign about the past, present and future of JRuby... including some myth debunking that might help Ruby folks look past the "J" to the amazing tech underneath. Check out the video here:
youtube.com/watch?v=Q9SqvQGH…
Headius Enterprises retweeted
And thanks to JRuby friend @cglee I now also have a ticket! Super excited to join the hallway track and show folks how to do more with Rails using JRuby! 🤩
Headius Enterprises retweeted
Good news! I will be in Austin during Rails World 2026 and available for JRuby office hours. I'm still looking for a ticket (budget is very tight!) but I can't miss out on meeting Rails folks from around the world. If you're a JRuby user or might like to be, let's have a chat!
Headius Enterprises retweeted
Friendly reminder to JRuby users out there: JRuby dev is now funded almost exclusively by support services from buff.ly/G0Ccgk1, delivering priority bug fixes, security SLAs, codebase and performance help under NDA, and much more. Sign up today or ping me for more info!
Headius Enterprises retweeted
JRuby 10.1.1.0 is released, with a bunch of compat fixes, more performance work, and several third-party CVEs resolved. JRuby 10.1 is our active development branch, with 10.0 being stable. Upgrading is recommended if you want the latest and greatest!
jruby.org/2026/07/22/jruby-1…