Principal software engineer @Wealthbox. Husband/Father. Health, travel, and tech enthusiast. Tech blog at https://xitter.cf/t.co/LWpB4i1iLD. Jokes at @logicalcomic.

Joined January 2008
I'm speaking at @sfrubyconf! Buy a ticket and come say hi!
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jpcamara retweeted
PlanetScale uses rails and we have out-shipped our competitors every year for the last 6 years
some of PlanetScale’s fastest growing customers are rails and laravel apps btw
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jpcamara retweeted
I recommend everyone upgrade Ruby immediately. This is a DoS and RCE vector if you accept user input into Regexp.new() ruby-lang.org/en/news/2026/1…
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jpcamara retweeted
Just released Prism v2.0.0. For the first time ever, Prism has no open issues, PRs, discussions, or redmine tickets. A couple of highlights below.
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Friends, PLEASE upload your image to clouds.sfruby.com so we can have your badge ready. Thanks!
🚨 ATTENTION ALL TICKET HOLDERS! 🚨 We need you to upload your picture to clouds.sfruby.com using the same email you used to get your ticket before Oct 22. We’re designing badges with your avatars and we need your pictures. Otherwise, we’ll have to assign you a random avatar based on the vibe your name gives off. So please, please save us the trouble and upload your pic. 📷
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I'm still personally not on board with the "I literally didn't read a single thing" level. I think there are nuances beyond architecturally consistency that can come up, and you still don't know what you may not have properly specified in the corners. But overall, still top notch
Dang, this is _really_ good. Great job @fractaledmind. Required watching!
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Dang, this is _really_ good. Great job @fractaledmind. Required watching!
If you're a software engineer, this is a MUST watch. @fractaledmind, Leading all Product Engineering at @zardotapp, gives the best articulation of how to reasonably apply AI to software development that I've heard yet. I've seen first hand how incredibly well this all works in practice 👏 youtu.be/OmrdvAzCSIc?si=L5Sp…
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If you're a software engineer, this is a MUST watch. @fractaledmind, Leading all Product Engineering at @zardotapp, gives the best articulation of how to reasonably apply AI to software development that I've heard yet. I've seen first hand how incredibly well this all works in practice 👏 youtu.be/OmrdvAzCSIc?si=L5Sp…
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let me tell you why saas is not dead and how deep in the rabbit hole we are on x ⬖ my wife is technical enough, worked as QA before, understands the concepts of cloud, hosting, frontend vs backend, etc etc. ⬖ she has 2 subs to copen ai and claude, uses them on desktop and on mobile ⬖ she has heard me rambling about ai for 4 years non stop and knows most terms ⬖ she has vibed a few websites for fun and is a creative person overall so i see she subscribed (recurring lol) to a "learn driving tests" app i asked her wtf why dont u vibe yourself one?? it will be even better, more visual, tailored to you, etc etc. she was like "uhm but why, someone already put all the effort and i just wanna be done with my driving tests" now think about the people who have NONE OF THE bulletpoints above lmfao 💀 put a price tag and just put the saas in the bag lil bro no one is vibecoding shit
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I've been testing alot of decision models, or using normal models as judges with github.com/jpcamara/ruby_llm… Celeris-1 Decision kind of nailed it, it's really good
Celeris-1 Decision is live today. On jev-bench and typed decisions it beats Jev 1.13.0, OpenAI gpt-6-luna, Perplexity pplx-decider-v1.1-27b, and Inception Mercury Decide, on both accuracy and Brier score. Celeris-1-decision also led the benchmark in response time with a median of 67ms. $0.04 per million input tokens, output free. Full results and methodology: celeris.ai/celeris-1-decisio…
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jpcamara retweeted
Why would I pay $15/month for your software when I can plan, build, review, improve, host, launch, scale, secure, patch, monitor and debug it myself?
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I haven’t abandoned this, but I was waiting for the dust to settle a bit around all the social media craziness related to it. I’ll come back with some updated numbers and roda included
I still have more verifications to do, but the Rust version from DHH had all sorts of additional optimizations. When applied to Rails/Sinatra/Rage, they make a monumental difference @TheDumbTechGuy @inazarova @tenderlove I'll post up the source soon
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I’ve been trying out the new GC per Ractor and it’s working so so well @_ko1 I did hit a performance regression and had some agents dig in, and it relates to the smaller initial heap size resulting in thousands of extra GCs in some cases gist.github.com/jpcamara/7e8… Should I open an issue or is this kind of expected behavior?
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This quoted post is unavailable.
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jpcamara retweeted
RubyLLM 2.1 is out now and it's missing nothing from LangChain/LangGraph/LangSmith. - Up to 58x faster and 58x less memory - Built-in MCP support with MCP Apps up to the latest spec - Support for Jev and other Decision Models - a new Evaluation framework - OpenTelemetry tracing You can have it all. The capabilities of the big Python frameworks, in a beautiful language like Ruby, integrated seamlessly into your Rails applications. rubyllm.com
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jpcamara retweeted
The Campfire ports and benchmarks are invalid. Nothing published is of credibility. Yes we will be reading code less or none in the future. But that’s not today. The Campfire ports proved absolutely nothing except one individual got bamboozled by AI’s benchmarks.
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