iiinova — where your digital self keeps evolving

Shane Carr @sffc.bsky.social · 26/09/2026

On #SFBART trains with an odd number of cars (5, 7, or 9), which car is missing, relative to the next larger train? 1. The one in front 2. The one in back 3. The northernmost 4. The southernmost 5. Other, but predictable 6. Random or unpredictable 🚇🚇🚇🚇🚇

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Shane Carr @sffc.bsky.social · 09/09/2026

Bonjour de Montréal! Come find me at #RustConf this week.

Large room at the conference with "Celebrating 10 years of RustConf" on the screen

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Shane Carr @sffc.bsky.social · 16/08/2026

I'm really excited to share the story of Temporal all the way from TC39 to the Chrome implementation powered by Rust!

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Shane Carr @sffc.bsky.social · 26/06/2026

We need a conversation on AI coding etiquette. First thing: should we treat agentic code differently than human code? I hear a lot of people saying: Your code is your code whether or not you use AI and you need to stand behind it. I don't fully agree. I want to know when code is human vs LLM.

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Shane Carr @sffc.bsky.social · 26/06/2026

I believe in the principle of crowd-sourced data, but the "US x Iran Permanent Peace Deal by June 15" market saps what little faith I had in Polymarket to deliver on that promise. This is corruption in plain sight.

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Shane Carr @sffc.bsky.social · 15/06/2026

We started the Diplomat Rust FFI project as a way to scale ICU4X (a Rust library) to many target languages. Since then, multiple other clients have discovered Diplomat, and through the magic of open source, we have new targets including Kotlin and Python. You should consider using Diplomat, too!

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Shane Carr @sffc.bsky.social · 12/06/2026

I considered going to the Thursday night bash at the Legion of Honor museum tonight. Google Maps said, 1hr away from downtown, then 1hr back to go to Oakland. I wasn't going to spend 2hrs in transit. The lack of a Geary Subway causes real economic losses. #SFMUNI #SFBART 🚇

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Shane Carr @sffc.bsky.social · 10/06/2026

Help me pick a profile picture (avatar) to use for my AI account that may make posts on various sites. See image names by the alt text.

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Shane Carr @sffc.bsky.social · 30/05/2026

I was about to write a post praising Deutchebahn for a pleasant journey from Amsterdam to Frankfurt... but the train terminated at Flughafen instead of Hauptbanhof, and now I'm on the platform with thousands of other frustrated passengers waiting for 30 minutes for the S-bahn that keeps not coming

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Shane Carr @sffc.bsky.social · 17/05/2026

I've taken 16 trains in 5 countries while traveling through Europe this month. My ranking: (1) NS InterCity (Netherlands). Lots of seats, quiet, clean, level boarding, punctual. (My anecdotal experience!) (2) SBB InterCity (Switzerland). Quiet, punctual, clean, more crowded but enough seats. 🧵

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Shane Carr @sffc.bsky.social · 03/05/2026

The German ICE trains are consistently late, standing room only (even in 1st class), expensive, and not really that fast. The RE trains seem to be more on time, less crowded, inexpensive, and not really that slow. Is the stress of ICE trains worth the few minutes it sometimes saves? 🚄

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Shane Carr @sffc.bsky.social · 25/04/2026

The Clipper reader is broken on this bus but there's a fare inspector onboard giving people trouble because everyone is riding without paying. 🤷 #SFMUNI #transit

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Shane Carr @sffc.bsky.social · 25/04/2026

It's a regular occurrence for a car, taxi, or even another bus to be blocking a bus stop and obstructing the view. Is it the responsibility of the passenger to proactively monitor the traffic and flag down the bus 😳, or for the bus driver to honk and alert the passenger? 🪿 #transit

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Shane Carr @sffc.bsky.social · 23/04/2026

@bridainep.bsky.social Nice talk today at UTC! In one of your slides you talked a bit about Sean being pronounced as either Shane or Shaun depending on diacritics. I would be curious if you could elaborate on the etymology of these two names and how the vowel sound changed!

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Reposted by Shane Carr

Nate Silver Tweets @natesilver538bot.bsky.social · 08/04/2026

I guess I'll have to blog about this tomorrow, but "LOL, Trump TACO'ed out" is decidedly not the right reaction as compared to "that kind of brinkmanship is really fucking dangerous". Original post

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Shane Carr @sffc.bsky.social · 05/04/2026

PSA: Since the retirement of Kubernetes Ingress-Nginx [^1], I've been very happy using F5 NGINX Ingress Controller [^2]. I should have been using it all along. Yes, I was confused about the naming, too. #k8s #nginx [^1]: kubernetes.github.io/ingress-nginx/ [^2]: docs.nginx.com/nginx-ingres...

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Shane Carr @sffc.bsky.social · 24/03/2026

There need to be consequences for leaders who avoid solving the root causes of problems. A first step: institute a threshold for ATC staffing (if one exists, it clearly isn't enough), and when an airport falls below the threshold, don't clear flights to land until more controllers come on duty.

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Shane Carr @sffc.bsky.social · 11/03/2026

A big accomplishment! As a champion, it is rewarding to move the needle on dates and times not only in JavaScript but across the industry, especially for non-Gregorian calendars. And as an implementer, ICU4X was born in part out of Temporal and now powers Chrome, Boa, and Kiesel. 🎉

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Shane Carr @sffc.bsky.social · 13/12/2025

Overheard people who make six figures complaining that BART, which needs the money, is raising their fares, from $4.88 to $5.15 on average. 🤨

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Shane Carr @sffc.bsky.social · 28/11/2025

I am absolutely a fan of upgraded train cars on regional trains, like the Keihan railway between Osaka and Kyoto. Every city should have these. 🚇

Advertisement for the Keihan railway depicting a train car filled with geisha.

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Shane Carr @sffc.bsky.social · 27/11/2025

It was great to visit Tokyo for JSConf.jp and TC39 last week! Now I'm down in Kyoto being mesmerized by the fall colors. 🍁

Bright red trees in the garden outside a Buddhist temple

A vermilion red bridge under an orange tree at night

Red and orange trees with a reflective pool

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Shane Carr @sffc.bsky.social · 01/11/2025

Did I just see an ad with the Oakland Ballers on the World Series? @oaklandballers.bsky.social ⚾

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Shane Carr @sffc.bsky.social · 14/10/2025

$ rust -v Command rust not found 😔 $ rustc -v error: no input filename given error: aborting due to 1 previous error 😠 (finally worked with rustc --version)

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Shane Carr @sffc.bsky.social · 24/09/2025

Really exciting to see this finally coming together! It's been a long journey for myself and many others, and I'm very happy with where we've landed.

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Shane Carr @sffc.bsky.social · 24/09/2025

I've heard people describe the Oakland Ballers as a "low-level minor league team". Wrong: they are a team of high-caliber players disenfranchised from MLB, like their fans. Just look at Bufford, Almanza, Chewy, etc, all very talented, and manager Aaron Miles, a World Series alum. #LetsGoOakland ⚾

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Reposted by Shane Carr

Oakland Ballers @oaklandballers.bsky.social · 23/09/2025

💚 💛 Ballers fam, @MayorBarbaraLee just announced that we're going to keep the party going! 🎉 See you there! 🍾

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Oakland Ballers @oaklandballers.bsky.social · 22/09/2025

OAKLAND WE DID IT!!!! 🏆

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Shane Carr @sffc.bsky.social · 21/09/2025

What does it say when Idaho Falls intentionally WALKS Christian Almanza, not once but TWICE in the same game for the Pioneer League championship? He's the silver slugger of Oakland, baby! #LetsGoOakland ⚾ @oaklandballers.bsky.social

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Shane Carr @sffc.bsky.social · 21/09/2025

It's the final game of the People's World Series! Come on Bay Area, let's turn up for another sell-out!

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Shane Carr @sffc.bsky.social · 21/09/2025

Great game! Nice work Gabe Tanner for staying focused and allowing only 2 runs on almost 100 pitches, and Cam Bufford for the textbook 3-run homer to finish off the 8th! Here's a clip of Sully's last pitch of the game! #LetsGoOakland 🟩🟨⚾

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Shane Carr @sffc.bsky.social · 20/09/2025

I'll be there! We'll remind everyone that Oakland has the best fans in baseball.

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Shane Carr @sffc.bsky.social · 05/09/2025

"I previously used VSCode, but they added Copilot and it scared me so not I use neovim" -- anonymous presenter at Rust conf

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Shane Carr @sffc.bsky.social · 22/08/2025

@transit.app Please add more features to customize your route. Example: to go from Oakland to Palo Alto, I want to build a custom itinerary that uses the N, T, 15, 30, 55, Waymo, Baywheels, or other connection to transfer between BART and Caltrain in downtown SF instead of transferring at Millbrae.

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Shane Carr @sffc.bsky.social · 21/08/2025

I was riding the #SFBART 🟧 from Berryessa toward Richmond. When the train arrived at 19th St, the 🟨 hadn't arrived yet, and we continued to MacArthur. Then, we waited there for the Antioch train. Anyone who got off the 🟨 at 19th, as they're told to do, missed their connection tonight!

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Shane Carr @sffc.bsky.social · 11/08/2025

Not happy with #SFMUNI tonight: 2nd time *in a row* for me that route 55 has not come. It's not late; it just *never came* to bring me from Dogpatch to BART. It's also impossible to track because this is the second stop on the line, so I can't verify whether it's on its way or not. 🚍😞

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Shane Carr @sffc.bsky.social · 06/08/2025

Perfect ending to a fun game! #LetsGoOakland ⚾

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Shane Carr @sffc.bsky.social · 07/07/2025

In business school, @southwest.com is literally a case study in how differentiation from competitors leads to success. That's the main problem with these changes (flying to bigger airports, assigned seating, checked bags becoming a credit card perk): it makes Southwest a commodity airline. ✈️

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Shane Carr @sffc.bsky.social · 18/06/2025

In this talk, I tell the story of how we're leveraging the Rust programming language to accelerate the Temporal implementation in V8. 🦀🦖

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Shane Carr @sffc.bsky.social · 14/06/2025

Aboard the Caltrain: nice Stadler EMUs, but the announcements sound like they're from outer space, and the screens are dead. 🚄🔩

A screen in Caltrain showing a Chrome screen of death

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Shane Carr @sffc.bsky.social · 12/06/2025

A great experience speaking at RustWeek and sharing how Unicode is leveraging Rust to make internationalization more lightweight, portable, and secure! What an incredible audience and venue! See the recording of my talk below, a whirlwind tour of ICU4X and Beyond in 20 minutes!

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Shane Carr @sffc.bsky.social · 04/06/2025

Worth the trek to A Coruña for the #WebEnginesHackfest! Lots of fruitful discussions with brilliant people in scenic surroundings. What more could you want? 🌊

People standing on well manicured green space with views behind

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Joyee Cheung @joyeecheung.bsky.social · 02/06/2025

Jonas Haukenes, Mikhail Barash and @sffc.bsky.social giving case studies of contributing to JS engines…and sharing a third-party library (in Rust!) to simplify implementation of Temporal

Jonas Haukenes, Mikhail Barash & Shane Carr: Cross-Engine Contributions at Scale: How newcomers accelerated Temporal and Upsert in SpiderMonkey, V8, and Boa

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Shane Carr @sffc.bsky.social · 22/05/2025

Looking forward to discussing how we've been accelerating the Temporal proposal by sharing Rust code between Boa and V8. 🐍🦀🦖

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Shane Carr @sffc.bsky.social · 15/05/2025

At the Rust 10th birthday party and live release party in Utrecht! 🥳🦀

A large room with balloons and a crowd of people

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Shane Carr @sffc.bsky.social · 23/04/2025

Most board games are printed in China, and most publishers are small businesses. The president needs to give a small-business exemption to the tariffs so show that he supports American entrepreneurs. 🎲✂️👨‍💼📊

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Shane Carr @sffc.bsky.social · 22/04/2025

I've stopped using X/Twitter not because of political persuasion but because the app has really gone downhill. 1. I see way more ads and other distracting content. 2. I can't share links to my feed because it's behind a paywall. 3. I've been locked out of my amount multiple times for no reason.

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Shane Carr @sffc.bsky.social · 01/04/2025

We need "green cars" on #SFBART, like JR East has on local trains in Tokyo: one car per train with tables and comfy seats, closer to a Caltrain or Amtrak experience. I bet affluent commuters would pay an extra $5 or more per ride, helping close the budget deficit. donnykimball.com/green-car-db...

donnykimball.com

Upgrade to the Green Car

How to Travel in Japan in Style

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Shane Carr @sffc.bsky.social · 27/03/2025

I look down over the #SFBART MacArthur transfer station. Seems like more days than not, the 🟨 to SFO is late for the 🟧 timed transfer. Meanwhile, the 🟥 arrives just a few minutes later. Little inefficiencies like this cost commuters hours each month. Suggestions below 🧵

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