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Aaron Brethorst

@brethorsting.com
482 followers 249 following 1.6K posts

Seattleite, transit enthusiast, democracy enthusiast. Posting through it ONLY in my personal capacity. Exec Director for OneBusAway’s parent nonprofit, Open Transit Software Foundation Founder of Sincere (formerly Voterletters)

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Aaron Brethorst @brethorsting.com · 03/08/2026
August? More like Smaugust here in the PNW. Weve been lucky so far, but i finally had to add an AQI widget to my lock screen 🤦‍♂️ 😬🙃😔
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The Urbanist @theurbanist.org · 03/08/2026
This is amazing! 🦝 🚌
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OneBusAway @onebusaway.bsky.social · 03/08/2026
This is an incredible project. Props to its creator. www.oneraccoonaway.org
oneraccoonaway.org
OneRaccoonAway
A pixel-art bus stop scene showing live arrivals and weather.
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Aaron Brethorst @brethorsting.com · 02/08/2026
I have a new essay up on my blog characterizing the two primary ways that I see developers using AI tools. www.brethorsting.com/blog/2026/08...
brethorsting.com
The Greenhouse and the Lens: Two Modes of Agentic AI Work
A greenhouse and a lens both run on sunlight, and they do opposite things with it. The greenhouse traps ambient heat and holds it, so everything inside grows a…
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Aaron Brethorst @brethorsting.com · 13/07/2026
I’m biased but I think the new UI looks awesome.
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John Rogers @johnrogers.bsky.social · 12/07/2026
I think in our grief it’s important to remember that Lindsay Graham lived long enough to see the Iran War he and John McCain dreamed of for decades finally happen, and to see it utterly shit the bed.
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Aaron Brethorst @brethorsting.com · 04/07/2026
Poor puppy 🧨
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Aaron Brethorst @brethorsting.com · 26/06/2026
A poignant reminder that any life can be unexpectedly cut short. Don't put off finding your joy to another day, because you might not have one. Life is too short to sacrifice your happiness to some tech oligarch asshole who wants to monitor your keystrokes. om.co/2026/06/24/1...
om.co
Om Malik, 1966-2026
Om Malik passed away on June 24, 2026, at Stanford Hospital after a long health journey with his heart. He was surrounded by family and friends. We invite you to share your remembrances of Om in th…
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Aaron Brethorst @brethorsting.com · 25/06/2026
I'm watching "Spiderman: No Way Home" for the first time (the whole pandemic thing, and then I had a kiddo), and it occurs to me that Spiderman doesn't need another fight scene—he just needs a therapist.
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Aaron Brethorst @brethorsting.com · 22/06/2026
@brandur.org "A new version of the company’s dashboard shipped on V3, and an unaffiliated developer who we’d never met before built Heroku’s first iOS app on it, without a single feature request sent our way" — was this me? github.com/aaronbrethor...
github.com
GitHub - aaronbrethorst/doppler-ios: Doppler for Heroku is an iOS Heroku client that currently supports the Aspen and Bamboo stacks.
Doppler for Heroku is an iOS Heroku client that currently supports the Aspen and Bamboo stacks. - aaronbrethorst/doppler-ios
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Aaron Brethorst @brethorsting.com · 06/06/2026
Amazing. This is a time to double down on common sense, high value light rail service expansions. Say, like, I dunno, Ballard. www.theurbanist.org/sound-transi...
theurbanist.org
Crosslake Light Rail Pushes Sound Transit to Most-Used Light Rail System in US
With the boost from the expanded 2 Line, Seattle's Link rail system is humming along at 160,000 daily riders, according to new April data. That makes it the busiest light rail system in the U.S.
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Aaron Brethorst @brethorsting.com · 03/06/2026
I regret to inform you all that the bouncy castle skeet inspired me to buy this symbol of bourgeois frivolity for my toddler. Little Lord Fauntleroy loves his new toy.
A symbol of the petit bourgeoisie: the bouncy castle.
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Aaron Brethorst @brethorsting.com · 01/06/2026
I think I'm going to start photocopying and mailing copies of the chapters "The Highwayman" and "Point of No Return" from "The Power Broker" to newly elected public officials. 99percentinvisible.org/episode/the-...
99percentinvisible.org
The Power Broker #10: Clara Jeffery - 99% Invisible
This is the tenth official episode of our ongoing series breaking down the 1974 Pulitzer Prize winning book, The Power Broker by our hero Robert Caro. This week, Roman Mars and Elliott Kalan sit down ...
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David Roberts @volts.wtf · 30/05/2026
Just going to join with the many others saying: this is simple courage & humanity & whatever else you think about the race, Steyer deserves enormous credit for it.
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Aaron Brethorst @brethorsting.com · 30/05/2026
I wrote down my thoughts on the importance of domain expertise in the world of agentic AI software development. (Spoiler alert: software engineers are less important than domain experts, imho.) www.brethorsting.com/blog/2026/05...
brethorsting.com
Domain Expertise Has Always Been the Real Moat | Aaron Brethorst
Personal website for Aaron Brethorst - Seattleite, technology leader, photographer, transit enthusiast, erstwhile non-runner.
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Aaron Brethorst @brethorsting.com · 28/05/2026
One of those “IN THIS HOUSE” yard signs, but it says that we never skip leg day 😅
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Beth Day @thebethocracy.bsky.social · 16/05/2026
NERDS! (complimentary)
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Aaron Brethorst @brethorsting.com · 12/05/2026
www.alzheimers.org.uk/about-dement...
alzheimers.org.uk
Loss of inhibitions and dementia
Sometimes a person with dementia can lose their inhibitions and may behave in ways that others find embarrassing.
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Aaron Brethorst @brethorsting.com · 07/05/2026
My “Americans are wrong: I am not a partisan hack” t-shirt is raising many questions answered by my t-shirt.
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William B. Fuckley @opinionhaver.bsky.social · 22/04/2026
Our revolution endorsing Tom Steyer is good, of the candidates with a shot I think he’s probably the best one, it reflects well on them and shows policy seriousness. All that said: it’s still pretty funny.
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Aaron Patterson @tenderlove.dev · 21/04/2026
I know that guy! 😆
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Aaron Brethorst @brethorsting.com · 20/04/2026
LinkedIn can be good sometimes.
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OneBusAway @onebusaway.bsky.social · 20/04/2026
New on the blog: set up your own OBA Maglev server for the San Francisco Bay Area and use it to power your transit projects opentransitsoftwarefoundation.org/2026/04/sett...
opentransitsoftwarefoundation.org
How to Set Up OneBusAway Maglev with Bay Area Transit Data | Open Transit Software Foundation
The creators and maintainers of OneBusAway, the open source software platform for real-time transit information and operations management. We provide software, services, and support to transit agencie...
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Aaron Brethorst @brethorsting.com · 19/04/2026
@kateriga.bsky.social was right. Kamala could’ve run away with this. Being governor of California is not a bad consolation prize
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Aaron Brethorst @brethorsting.com · 12/04/2026
CONGRATS GOVERNOR STEYER
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The Samuelation @samuelation.bsky.social · 03/04/2026
Hey, so an acre of solar panels powers a car way more than an acre of corn. If they are growing corn for ethanol, create an incentive for them to lease the land for solar installations instead! Less labor and water intensive, they keep a stream of income, and we diversify our power generation!
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Aaron Brethorst @brethorsting.com · 03/04/2026
This is a real article from The Atlantic. Turns out you want to be the thing that is incinerated.
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Subscribe to Radio Free America (link in bio) @kleinman.bsky.social · 02/04/2026
They're not really being subtle about it any more
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Kathryn Tewson @kathryntewson.bsky.social · 02/04/2026
Ken Acquah
@aquariusacquah
absolutely devastated after going down to pitch in at the capitol hill autonomous zone organizing tent only to find out the anarchist commune already has an L2 AWS cloud solutions engineer
2:07 PM • 6/9/20 • Twitter for Android
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Aaron Brethorst @brethorsting.com · 22/03/2026
Don't sleep on this Todd Achilles for Senate thing in Idaho. I did not have former Republican carves out path as notional independent, caucuses with Democrats on my 2026 bingo card as a potential route for Dems to retake the Senate, but here we are and I'll take it.
PPP poll from March 20 showing a Senate general election matchup between former Republican, turned Democrat, turned Independent Todd Achilles vs. Republican incumbent Senator James Risch. Achilles is leading by 3 points, 41 to 38.
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Aaron Brethorst @brethorsting.com · 14/03/2026
media.tenor.com
a cartoon dog is sitting in front of a fire with the words " it 's fine "
ALT: a cartoon dog is sitting in front of a fire with the words " it 's fine "
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Aaron Brethorst @brethorsting.com · 13/03/2026
I can’t believe it’s not fascism
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News Eye @newseye.bsky.social · 08/03/2026
BREAKING: The US has bombed Tehran’s main refinery and burning oil is now flooding down the streets into the city’s sewers. This is a vision from hell, unleashed by the US tonight. (🎥 Vahid Online)
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Hypervisible @hypervisible.blacksky.app · 06/03/2026
Make it stick.
futurism.com
People Are Calling Meta Ray-Bans "Pervert Glasses"
On Bluesky, users quickly embraced the term "pervert glasses" to refer to Meta's Ray Ban smart glasses, following a shocking investigation.
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piecesofeight mashups @piecesofeight.bsky.social · 06/03/2026
Today I Will Look The Burrito Man In The Eye and other stories of manifesting success
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Aaron Brethorst @brethorsting.com · 04/03/2026
My toddler just yelled out, while leaping into the air, apropos of nothing, “I’M READY TO MAKE POPCORN!” It is 10pm here. Everyone is ready to go to bed except him.
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Aaron Brethorst @brethorsting.com · 02/03/2026
I’ve been hearing a lot of doomerism from friends about the midterms: Trump will rig it. Trump will suspend the elections. Etc. I think this is all rank doomerism. Even if he tried, I think he’ll fail. Even if I’m wrong, the response from the American people would be without precedent.
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Aaron Brethorst @brethorsting.com · 02/03/2026
Just the absolute worst, most venal, mush brained man you could imagine. Congrats everyone, we could’ve had the nice Black lady instead.
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Aaron Brethorst @brethorsting.com · 26/02/2026
Yes, I too find it very hard to enrich myself by 25% literally overnight.
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Aaron Brethorst @brethorsting.com · 25/02/2026
A hit dog will holler.
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Alexis @alexispace.bsky.social · 24/02/2026
READ THEORY!
Sewer socialism was an American socialist movement that centered in Milwaukee, Wisconsin, from around 1892 to 1960. The moniker was coined by Morris Hillquit at the 1932 Milwaukee convention of the Socialist Party of America as a commentary on the Milwaukee socialists and their perpetual boasting about the excellent public sewer system in the city.
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Aaron Brethorst @brethorsting.com · 24/02/2026
Also the politician most feared by the notionally revolutionary socialist.
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Aaron Brethorst @brethorsting.com · 21/02/2026
Welcome to life in your forties! 🫠
Seven containers full of vitamins and pills.
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Aaron Brethorst @brethorsting.com · 19/02/2026
Can I just reiterate what an absolute failure of an AG Merrick Garland was? edition.cnn.com/2026/02/19/p...
edition.cnn.com
Giant banner of Donald Trump hung at Justice Department headquarters | CNN Politics
A large banner of Donald Trump was hung outside of the Justice Department headquarters in Washington, DC, Thursday, emphasizing the White House’s control over the nation’s top law enforcement branch t...
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Aaron Brethorst @brethorsting.com · 19/02/2026
Evita?
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Aaron Brethorst @brethorsting.com · 17/02/2026
FEC should force Carr and Talarico to label this as an in-kind donation.
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Gillian Brockell @gillianbrockell.com · 17/02/2026
And if you’re wondering “Why is there a blob in the back?” Well, that’s where the first woman president was supposed to go. More than a century later, it remains unsculpted.
A photo of the below sculpture from a different angle showing an unsculpted profusion between Elizabeth Cady Stanton and Susan B. Anthony.
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the abbot of unreason (a returned archaeologist) @merovingians.bsky.social · 17/02/2026
it's possible that Spanberger hates these people enough she could actually do a one-term 'burn the crops and salt the fields' demolition on the GOP. the memes from the tribunals would be tremendous
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SE Gyges @segyges.bsky.social · 16/02/2026
this started a holy war, so let me state a very plain and direct argument for this the democratic primary is when we decide if we get to have things be good or mid the general election is when you decide if you dislike nazis
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Aaron Brethorst @brethorsting.com · 15/02/2026
Utterly deranged shit happening over in the bad place. The Rubio thing is appalling and the Blob is terrible but you don’t Have to Hand It to Putin.
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