Thanks to @excid3.com and @andrewm.codes for having me! Listen here: www.remoteruby.com/2260490/epis...

Beyond performance work, I deprecated a bunch of APis in the JSON gem, and added others, so I figured it would be a good occasion to talk about API design: byroot.github.io/ruby/json/20...

Honored to be presenting at PGConf NYC in a couple of months! Hope to see you there. #postgresql bsky.app/profile/pgco...

RailsConf talks are live. Would love your feedback! Presentation page with more info and all the links: andyatkinson.com/10-mistakes RailsConf 2025 10 Costly Database Performance Mistakes (and How to Fix Them) by Andrew Atkinson www.youtube.com/watch?v=MJ8R...

Ducklake, simplified lakehouses by @duckdb.org Holy moly, it's amazing when things "just make sense." duckdb.org/2025/05/27/d...

This blog is SO good at pointing out what should have been obvious about AI for coding (Copilot and others) These tools are good for re-creating whatever they’ve been trained on. They are not what will create the next, better generation of frameworks, libraries, technologies.

If your team needs expert help improving performance, scalability, and reliability for your Ruby on Rails and PostgreSQL application, Refined Pages, LLC can help. We'll systematically refactor Active Record ORM queries to optimize PostgreSQL performance. Let’s chat: refinedpages.com

Improving the initial UX of the Ruby extension for @zed.dev by using the newly introduced `Process` API. Isolated and automatic installation of LSP gems but we check the project gemset first. 🎉 github.com/zed-extensio...

As revealed at @tropicalonrails.bsky.social today, we are introducing an iOS app for @rubyevents.org to push and support the recent uptick in Ruby Events around the world. #tropicalonrails #tropicalonrails2025

If you've ever wondered how @rubycentral.org conference talks are decided, Noel wrote up a great thread about the process.

I’m still unemployed and looking for a new full time position doing Ruby, Rails, TypeScript, CSS. If you know people who are hiring, I’d really appreciate an introduction. 🙏

Here we go. That one I really needed to get of my chest for the better part of a year, so I feel relieved now. It's really long but hopefully not too hard to follow. byroot.github.io/ruby/perform...

Is there any company that publishes more self-critical and as-transparent-as-can-be postmortems than Cloudflare... within 24 hours of major incidents, should I say? They've been doing it forever. I personally trust them more for it. Eg from a few weeks ago:

Continuing my series to give context on Pitchfork design, why I think HTTP2 support isn't important (for a Ruby application server). byroot.github.io/ruby/perform...

I really value that Tailwind CSS documentation uses real-world examples to introduce features 🫶 Those are much harder to produce than contrived examples, and the benefit is that they not only teach me library API, but also various strategies I can apply to my project 💯

I wrote a blog post about how we can make FFI faster in CRuby railsatscale.com/2025-02-12-t...

Shipped a huge update to ActiveRecord::AssociatedObject that I'm proud of. You can now pass these POROs to forms, `render`, route helpers and fragment caching. github.com/kaspth/activ...

When I scheduled the Rails guided tour I had no idea how popular it'd be, so thank you everybody for helping it sell out! I'm adding another on February 6th that's more friendly to EU time zones + group registration too so bring your squad! lu.ma/8a8clh9b

I'm incredibly excited to announce that we've partnered with @fractaledmind.bsky.social to produce our first course on Ruby on Rails. Sponsored by @hatchbox.io and @honeybadger.io, High Leverage Rails is an in-depth video course on Rails + SQLite for beginners. Coming in February!

You should be using JavaScript sets more often Now in all browsers and Node - these 7 new set methods are key for when trying to compare two arrays or sets of data.

Awesome new Ruby gem(s) alert! 🚨🚨 This week @joel.drapper.me and I wrapped up the awesome Difftastic tool into a gem with precompiled binaries. Difftastic gives you AST-driven diffs instead of simple text-driven diffs by leveraging the power of Tree Sitter.

I forget the original source but this is so good. I need a little pocket version that goes in my wallet like a credit card.

It is done, I finally concluded the ruby/json optimization series. I hope you enjoyed it: byroot.github.io/ruby/json/20...

This is an awesome event from @kaspth.bsky.social. Reading the Rails source is how I leveled up (and made my first PR to Rails!) too. It's a rare opportunity to get a guided tour from a former Rails core team member.

It's here, it's here! New Joy & Curiosity! Starts with a hot take and, if I might say so, in the parlance of our times, doesn't really cool down, you know. If your email pipe's clogged and it's not in your inbox, read it here: registerspill.thorstenball.com/p/joy-and-cu...

It feels like I’m in the future right now at this exact moment. - 3d printing a white picket fence for my wife’s bird feeder - one handed typing into my IDE’s chat and it’s going and doing things for me - baby is asleep on my shoulder

As usual, Danny hits the nail on the head. 🔨 I’ve had to fight this temptation myself. Cursor changes 50 lines and the lazy part of my brain says "I’m sure it’s fine, just accept the changes". Seems like a great way to plateau in your growth as a developer. 😬

This is so spot on. Two things: 1. Being focused on producing output the fastest way possible means that you will never prioritize "going deep" 2. Going deep (and down the rabbit hole) is how you learn more: but you need to balance it. Figure out how to do both: it's tricky!

Part 5 is out, I'm finally done with the encoding side, so next time I can start talking about parsing: byroot.github.io/ruby/json/20...

This week I also spent a few hours reworking IRB's documentation, which was previously scattered across its GitHub Pages and README. Now, everything is merged into one place: ruby.github.io/irb

Very detailed release note about #Ruby 3.4 by Koichi and Mame dev.to/ko1/reading-...

I found a bit of time there and there to write part 3 over the last week, hopefully it isn't too disjointed. byroot.github.io/ruby/json/20...

Merry Christmas everyone! Ruby 3.4 ships with Modular GC, an experimental feature we're actively working on. Modular GC provides an API for GC implementations and allows you to switch garbage collectors at boot time. For more details, see github.com/ruby/ruby/bl...

Noah Gibbs (codefolio, YJIT team, Rebuilding Rails author) has passed away. His big dream in life was to help build the Ruby community up. He wanted to be like the folks who worked to create the railroads during the industrial revolution.

Ruby 3.4.0 and 3.4.1 (that change is only version number) has been released. www.ruby-lang.org/en/news/2024... www.ruby-lang.org/en/news/2024... And I also released new version of ruby-build github.com/rbenv/ruby-b...

My favourite Ruby 3.4 improvements: timriley.info/posts/my-…

🎙️ Earlier this year, I joined Ruby Rogues to talk about Async, Falcon, and advancing Rails with concurrency & streaming. 🚀 We explored challenges, simplifying deployments, and even gave Futurama a shoutout. 📺💡 www.youtube.com/watch?v=fpXB...

How hard should you work to retain employees who hint at leaving? In @mipsytipsy.bsky.social's latest blog, she shares her perspective on the employer-employee relationship, with some honest truths along the way. Check it out below 👇 charity.wtf/2024/10/11/h...

I've been polishing up the github.com/kaspth/activ... README. You can now see all the benefits and more praise quotes now that people are seeing this in practice — I'm really proud of where this is going! 🚀

I have the pleasure to welcome fatkodima in the Rails committers team. Dima has been relentlessly fixing reported issues in record time for quite a while now, this is more than deserved! Congrats Dima! 👏

Vernier 1.5.0 is out! This has some significant changes including rewriting the timer thread sleeping (should be lighter weight), recording Fiber activity (thanks @tenderlove.dev), and showing file listings on the command line. Please let me know if you hit any issues 🙇‍♂️ github.com/jhawthorn/ve...

Since the first post was well received, that motivated me to continue, let's see how long it lasts byroot.github.io/ruby/json/20...

I got quite a lot of free time lately, so I figured I'd use it to blog a bit. Hopefully it's worth the effort? Here's the first one, about some of the optimizations I and others made to ruby/json recently: byroot.github.io/ruby/json/20...

I dug into CRuby and YJIT to better understand a recent, popular synthetic benchmark run against various languages. It was alot of fun to investigate how YJIT and CRuby work together! jpcamara.com/2024/12/01/s... @k0kubun.com @timtilberg.bsky.social

1Password has joined the Rails Foundation. "1Password is joining the Rails Foundation for three reasons: Rails is where the future is, Rails is where the community is, and Rails is where the challenge is." blog.1password.com/1password-jo...

hat-tip to @marcoroth.dev for letting me know @adrienpoly.com is trying out my active_record-associated_object gem for rubyvideo.dev profile ENHANCE ( ͡° ͜ʖ ͡°) ( ͡⊙ ͜ʖ ͡⊙) ( ͡◉ ͜ʖ ͡◉) github.com/adrienpoly/r...

I'm thankful for a database that's no longer at 87% disk space usage as of this morning! https://www.johnnunemaker.com/shrinking-a-postgres-table/

🎈 Friendly reminder: I’m having a Black Friday sale! The best deal is my brand-new bundle containing both of my flagship courses (CSS for JavaScript Developers + The Joy of React). It’s the complete version of both courses for a gobsmacking 50% off. Learn more here:

Here it is! The big thing is the (experimental) Environment API: our hope is it can serve as the foundation for frameworks that run code in multiple different JS runtimes. The internal module runner refactors also pave the way for some interesting things down the road...

Interesting read on zero disk architecture: https://avi.im/blag/2024/zero-disk-architecture/ I read up on warp stream recently and found it pretty neat. Didn't know turbopuffer and clickhouse could do this too.