Creator of SaturnCI, author of Professional Rails Testing, host of the Code with Jason Podcast.
Joined May 2009
- Tweets 11,043
- Following 32
- Followers 7,314
- Likes 16,853
462 Photos and videos
Pinned Tweet
22 Oct 2024
Professional Rails Testing is now available on Amazon!
amazon.com/Professional-Rail…
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Basic logic that many otherwise smart people can't seem to fathom:
If you add items to your backlog faster than you complete them, it will soon become:
A list of shit you're GUARANTEED NEVER TO GET TO, with a small and shrinking fraction of real work.
What's the fucking point?
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SaturnCI's "backlog" is a sheet of notebook paper. On it are hand-written bugs and changes.
Every week or so, as a matter of principle, I throw the list away, without finishing it, and try my best to forget what was on it.
Almost no one else works this way but they should.
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Jason Swett retweeted
17h
It seems a mistake to call oneself a "non-technical founder." You're treating not knowing how to do something as a part of your identity. Surely it's better just to fix that.
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Jun 13
It's astonishing (and annoying and depressing) how many people in the tech industry, made up of supposedly smart people who should know better, deny the obvious fact that some people are smarter than others. The downstream effects of this belief are calamitous.
Jun 13
Indeed, but cultural and intellectual publications (especially those with "New York" in their title) are consistently unintelligent when writing about intelligence. (Obvious political reason: If we aren't blank slates, then not all inequality can be blamed on injustice, threatening a certain kind of leftist thought. Therefore anything questioning the blank slate - even the in-your-face reality that some people are smarter than others - must be discredited.)
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Jun 13
New layout for SaturnCI. To me it looks like there's less stuff there, but it's all the same stuff, just organized better.
(Design exercise: note exactly what's different and exactly why the new version is better...if you concur that it's better.)
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Jun 12
The main problem with dysfunctional eng orgs is not just that they're bad at programming, it's that they don't know how to get ANY kind of work done.
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Jun 12
If you're not looking at almost all the code your agent generates, I think you're making a mistake.
If you're not looking at ANY of the code your agent generates, I think you're making a COLOSSAL mistake.
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Jason Swett retweeted
Jun 12
The creator of Ruby on Rails is all in on AI...but that doesn't mean he's rushing to build it into the framework just yet.
On the newest On Rails, @DHH joins @robbyrussell to talk Rails, the Basecamp 5 launch, and AI-assisted development: "It is a professional obligation of every programmer to take this revolution seriously."
Curious where Rails is headed? Listen or watch the full episode on YouTube (link in thread). podcast.rubyonrails.org/2462…
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Jun 12
I feel like SaturnCI passed some sort of inflection point over the last week. In the span of just a few days it went from feeling like a hobby project to feeling like a real business.
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Jason Swett retweeted
Jun 11
Oh dear, what have I done…
ALT Screenshot of the front page of Hacker News, showing "I stopped tracking my time. Now I can't focus." with an asterisk and grayed out, showing the link has been visited.
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Jason Swett retweeted
Jun 12
Ruby and Rails friends, please tag companies and people who should join the @sfrubyconf in November with @garrytan keynote 🔥🔥🔥
I'll start!
Ruby-backed: @intercom @Chime @gitbutler @Airbnb @doximity @goclio @typesense @boltdotnew @Cisco @figma @stripe @Square @github @Shopify @omadahealth @GustoHQ @CompanyCam @gitlab @withpersona @ycombinator @checkr @productboard @FrameworkPuter @nexhealthHQ @HuntressLabs @newrelic @PlanetScale @AngelList @academia
Jun 11
Save the date, mark your calendars, and decline the invite to the All Hands meeting! The second edition of @sfrubyconf is happening Nov 10-12.
Our first confirmed keynote speaker is @garrytan, president and CEO of Y Combinator and longtime Rails builder.
Ruby on Rails is the common ingredient in success stories like Shopify and GitHub. Last year, we brought together the people building with Rails and the companies shaping its future. This year, we're doing it again in the home to some of Rails' biggest wins.
Be the first to know when tickets go live and get early-bird prices: sfruby.com/conference-2026/
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Jason Swett retweeted
Jun 11
I can’t imagine what would make me more excited than this! @garrytan is keynoting at the SF Ruby Startup Conference on Nov 10-12 at SF Jazz!
Jun 11
Save the date, mark your calendars, and decline the invite to the All Hands meeting! The second edition of @sfrubyconf is happening Nov 10-12.
Our first confirmed keynote speaker is @garrytan, president and CEO of Y Combinator and longtime Rails builder.
Ruby on Rails is the common ingredient in success stories like Shopify and GitHub. Last year, we brought together the people building with Rails and the companies shaping its future. This year, we're doing it again in the home to some of Rails' biggest wins.
Be the first to know when tickets go live and get early-bird prices: sfruby.com/conference-2026/
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Jason Swett retweeted
Jun 11
Save the date, mark your calendars, and decline the invite to the All Hands meeting! The second edition of @sfrubyconf is happening Nov 10-12.
Our first confirmed keynote speaker is @garrytan, president and CEO of Y Combinator and longtime Rails builder.
Ruby on Rails is the common ingredient in success stories like Shopify and GitHub. Last year, we brought together the people building with Rails and the companies shaping its future. This year, we're doing it again in the home to some of Rails' biggest wins.
Be the first to know when tickets go live and get early-bird prices: sfruby.com/conference-2026/
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Jun 11
One of my favorite things is when someone signs up for SaturnCI and then, with no help from me, gets an app working perfectly.
It's a testament to a) my product design genius (duh) and b) the virtues of using Docker and Ruby for CI setup instead of YAML.
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Jun 11
PSA: Bosses and employees can't be friends.
Where one person has power over the other, real friendship is impossible.
Because something is at stake, bosses and their reports (rightly) avoid being too candid with each other. It's all a careful performance. That's not friendship.
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Jun 10
Tip to my fellow @railsworld attendees: if you visit Texas without having barbecue, you visited Texas wrong.
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Jun 10
Status: accepted. See you in Austin!
Jun 10
All #RailsWorld 2026 speaker applicants have just been informed of the status of their talk, so please check your inboxes. We will begin sharing speaker announcements soon. In the meantime, you can still grab a ticket at: rubyonrails.org/world/2026
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i don’t think people realize how early we still are in the ai cycle even though the major companies are now becoming public.
the models are getting way better but still have gaps. most of the products are still primitive in so many ways. the interfaces are mostly bad. the workflows are barely rebuilt. the hardware layer has barely started. robotics is just the at the very precipice. consumer behavior has not even begun to rewire yet.
there is a long long way to go. what a crazy time to be alive.
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Jason Swett retweeted
Jun 8
If you never end meetings early you are a dickhead.
People have one life and you’re wasting it with low value content because the calendar hold says three is more time and you feel like you have to use it.
“What else?”
What else - end the meeting fuckface. YOLO.
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Jun 6
This is the start of a new blog post. Question: Why do you think I think a class called APIDocumentation is "fake OOP"?
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