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Doug Schaefer

@dougschaefer.bsky.social
552 followers 108 following 70 posts

Tools developer at Apple currently working on the Swift package manager. Hack guitar player, hack curler. Former lead of the Eclipse CDT open source project. Been a wild ride, more to come. From Ottawa, Canada.

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Doug Schaefer @dougschaefer.bsky.social · 30/09/2026
Been a great summer planning expansion of Swift packages to better support Swift language interoperability and building something fun. forums.swift.org/t/expanding-...
forums.swift.org
Expanding the power of build tool plugins to build something fun
As a tools developer, it's critical I try to empathize with developers who use the tools I help create. I am probably most intrigued by game developers. My favourite influencers are game developers. T...
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Doug Schaefer @dougschaefer.bsky.social · 03/05/2026
Good architecture is that feeling of joy working in a code base. Hard enough for us to understand let alone the models.
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Swift Language @swift.org · 20/12/2025
🗓️2025 was a great year for Swift 🍾 Thank you all for choosing Swift. We're ending the year with a digest of what's been going on in the project and community recently. 🗞️ Read up here: www.swift.org/blog/whats-n...
swift.org
What's new in Swift: December 2025 Edition
Welcome to the latest digest of news from the Swift project.
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Doug Schaefer @dougschaefer.bsky.social · 14/12/2025
Just watched a video on EV performance on a Saskatoon night (where I went to university) at -35C. Used a lot of battery but the car performed great. And you know, I miss that adventure of waking up to -35C and heading to school and the sound of the snow crunching under your feet.
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Joseph Heck @heckj.bsky.social · 04/12/2025
My fave tip for dev #swiftlang -> Linux, check how your Swift package compiles while on your mac w/ container: container run -it -c 4 -m 8g \ -v "$(pwd):/src" -w src/ \ swift:6.2 sh -c "swift build" (runs a Swift 6.2 image, gives it 4CPU and 8GB, mounts your PWD as "src", and builds)
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Doug Schaefer @dougschaefer.bsky.social · 21/11/2025
I spent many years in the Eclipse community and was so privileged to be immersed in their passion for building great things and lasting friendships. The last few weeks attending Swift community meetups, I'm seeing that passion again. I feel so at home!
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Doug Schaefer @dougschaefer.bsky.social · 19/11/2025
Beautiful idiomatic Swift running in 6K RAM and 32K Flash? Fantastic work xtremekforever! github.com/xtremekforev...
github.com
GitHub - xtremekforever/swift-stm32c011-examples: A few examples of running Swift on the STM32C0116-DK
A few examples of running Swift on the STM32C0116-DK - xtremekforever/swift-stm32c011-examples
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Doug Schaefer @dougschaefer.bsky.social · 18/11/2025
I can't wait to see where the community takes Swift on embedded platforms, microcontrollers like Doug G and Rauhul talk about here or even bigger and at the edge. www.swift.org/blog/embedde...
swift.org
Embedded Swift Improvements Coming in Swift 6.3
Embedded Swift is a subset of Swift that’s designed for low resource usage, making it capable of running on constrained environments like microcontrollers. Using a special compilation mode, Embedded S...
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Doug Schaefer @dougschaefer.bsky.social · 18/11/2025
I can't wait to see where the community takes Swift on embedded platforms, microcontrollers like Doug and Rauhul talk about here or even bigger and on edge. www.swift.org/blog/embedde...
swift.org
Embedded Swift Improvements Coming in Swift 6.3
Embedded Swift is a subset of Swift that’s designed for low resource usage, making it capable of running on constrained environments like microcontrollers. Using a special compilation mode, Embedded S...
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Khan Winter @khanwinter.com · 07/11/2025
Swift - Java interop I think it’s pretty critical to embed Swift as a server side language. If you can begin a transition incrementally, it’s always easier to move over. Super cool to see this work, and congrats to Mads!
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CNN @cnn.com · 07/11/2025
"I was under duress," Prince Harry explained in an interview with Canadian broadcaster CTV News after apologizing. "There wasn't much choice. I was invited to the Dodgers dugout by the owner. I was doing what I thought was the polite thing to do." cnn.it/3WJfonf
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Joseph Heck @heckj.bsky.social · 01/11/2025
The Swift project is starting up digest posts on their blog, and I had the good fortune to be the guest voice, sharing some of the cool things from October. www.swift.org/blog/whats-n... I kind of expect the format to morph as we try this out, but i’m really happy to see this happenin’ #swiftlang
swift.org
What's new in Swift: October 2025 Edition
Editor Note: This is the first of a new series, What’s new in Swift, a monthly digest featuring what’s new in the Swift project and ecosystem, with insights and perspectives from across the Swift worl...
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Swift Language @swift.org · 01/11/2025
It's been a busy month for Swift, with lots of project updates to share. Here's a digest of the latest news: www.swift.org/blog/whats-n...
87 authors have pushed 883 commits to all branches of the swift project.
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Doug Schaefer @dougschaefer.bsky.social · 29/10/2025
Oh, yeah. Nice. We've been getting the Fan games up here on our TSN radio station. So glad they did. Ben Shulman sounds so much like his dad. Great broadcast too.
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Doug Schaefer @dougschaefer.bsky.social · 29/10/2025
That is the way. Nice :)
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Doug Schaefer @dougschaefer.bsky.social · 29/10/2025
Everything fine on Roger’s Cable. Heard others having trouble too. Streaming is hard I guess.
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Doug Schaefer @dougschaefer.bsky.social · 27/10/2025
Excited by the progress the team is making. A modern build system for SwiftPM!
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Doug Schaefer @dougschaefer.bsky.social · 25/10/2025
You know, that's not a horrible idea.
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Doug Schaefer @dougschaefer.bsky.social · 25/10/2025
And it was a 9 run inning, lol. Wasn't expecting that but been happening all playoff long. Fun team to watch.
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Doug Schaefer @dougschaefer.bsky.social · 25/10/2025
New phone, sent to the gmail I had for you.
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Doug Schaefer @dougschaefer.bsky.social · 25/10/2025
Definitely felt like a statement. It's the Canadian way, nice and subtle :).
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Honza Dvorsky @czechboy0.dev · 25/09/2025
Introducing Swift Configuration 🎉 You'll also hear more about it at @serversideswift.info next week! 🏎️ forums.swift.org/t/introducin...
forums.swift.org
Introducing Swift Configuration
Hi Swift Community! Today, we’re pleased to announce the initial release of Swift Configuration: a new library that provides a unified approach to reading configuration in your Swift applications. C...
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Doug Schaefer @dougschaefer.bsky.social · 12/08/2025
Finding I'm spending most of my time on Twitter. Tech influencers I enjoy listening to are there. And as long as I stay on the "Following" tab, I seem to avoid much of the nonsense.
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Doug Schaefer @dougschaefer.bsky.social · 03/08/2025
Didn’t stop Alberta 🤣
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Doug Schaefer @dougschaefer.bsky.social · 02/08/2025
I would be all in on that! Have been many times there in business. The people there are what we aspire to. Unless you’re in the 51st state camp.
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Doug Schaefer @dougschaefer.bsky.social · 02/08/2025
Neither is Great Britain but they got in. And Ireland is still there.
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Doug Schaefer @dougschaefer.bsky.social · 05/05/2025
I read that as they are still working hard at getting the penalty nullified.
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Doug Schaefer @dougschaefer.bsky.social · 23/04/2025
When busy at work late into the evening making SwiftPM the best it can be, great to throw up Star Wars A New Hope to remind me what brought me to this game. Can't wait to focus more on Swift Embedded in SwiftPM to get it onto robots like this 😀 🤖 .
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Doug Schaefer @dougschaefer.bsky.social · 11/04/2025
Love it that it’s a regular occurrence I turn on golf and there’s a Canadian on the leaderboard. What a great crop of players now.
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paris. @parisinbmore.bsky.social · 04/04/2025
loving the swift community rally around #swiftlang as the main hashtag for the language itself. it is so hard sifting through taylor swift and the financial network to engage with yall 😂 i think #swiftlang and platform would be cool to see too like #swiftlang #linux spread the word :)
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Doug Schaefer @dougschaefer.bsky.social · 22/03/2025
Am I weird that I always feel the urge to thank Siri for doing something for me like set a timer?
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CNN @cnn.com · 09/03/2025
JUST IN: Mark Carney has been elected as leader of Canada's Liberal Party in high stakes race to replace Justin Trudeau.
cnn.com
Canada’s Liberal Party chooses Mark Carney to succeed Justin Trudeau | CNN
Mark Carney has been elected leader of Canada’s Liberal Party in a months-long, high stakes race to replace Justin Trudeau.
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Doug Schaefer @dougschaefer.bsky.social · 09/03/2025
For someone who has trouble falling asleep, this side of the time change is devastating.
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Harlan Haskins @harlanhaskins.com · 04/03/2025
Got my Swift Game Boy Advance project building with the latest Swift 6.1 toolchain -- Embedded Swift support in SwiftPM has come a long way in the last year. github.com/harlanhaskin...
github.com
GitHub - harlanhaskins/SwiftGBA: Swift for Game Boy Advance
Swift for Game Boy Advance. Contribute to harlanhaskins/SwiftGBA development by creating an account on GitHub.
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Doug Schaefer @dougschaefer.bsky.social · 03/03/2025
That's my sense too. This is mainly Twitter exiles. Which is fine. Twitter is still the go to place for your doomscrolling though...
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Machine Pun Kelly @kellyscaletta.bsky.social · 01/03/2025
This is Winston Churchill visiting Washington DC to request assistance in the war against Germany. Notice he is wearing a "zip suit" and not a traditional suit. This was to honor the British troops--the same reason Zelensky dresses the way he does.
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Doug Schaefer @dougschaefer.bsky.social · 27/02/2025
lol, are they? Whatever sells. ;p
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Doug Schaefer @dougschaefer.bsky.social · 24/02/2025
VHDL is just more readable than Verilog. But then Ada is a lot more readable than C too. So there's that. #ulx3s #misterfpga
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Doug Schaefer @dougschaefer.bsky.social · 21/02/2025
Swift on Server has so much potential. I love hearing success stories like this. www.swift.org/blog/how-swi...
swift.org
How Swift's server support powers Things Cloud
You might be familiar with Things, a delightful personal task manager that has won two Apple Design Awards and is available across Apple devices including iPhone, iPad, Mac, Apple Watch, and Apple Vis...
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Doug Schaefer @dougschaefer.bsky.social · 21/02/2025
Hard to explain what this sport means to this country. Except for times like this. This is pride no one can take away.
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Honza Dvorsky @czechboy0.dev · 19/02/2025
The Swift Devroom at FOSDEM 2025 was a huge success! You can check out all the Swift-related videos at swiftlang.github.io/event-fosdem/ 🏎️ #swiftlang Many thanks to @kto.so @parisinbmore.bsky.social and many others for making it happen (please tag them below) 👏
swiftlang.github.io
Swift DevRoom @ FOSDEM 2025
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Doug Schaefer @dougschaefer.bsky.social · 17/02/2025
OMG, just realized SNL was on through the entire 80's. What a time it was to be alive.
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Doug Schaefer @dougschaefer.bsky.social · 16/02/2025
That really looked like it was cooked up by the Tkachuk brothers. Dad looked like he enjoyed it.
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Doug Schaefer @dougschaefer.bsky.social · 16/02/2025
There in lies the rub. We don't have any good goalies any more.
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paris. @parisinbmore.bsky.social · 14/02/2025
thrilled to have Karen on the team to grow Swift beyond Apple platforms solidifying other use cases #swiftlang
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Doug Schaefer @dougschaefer.bsky.social · 11/02/2025
www.swift.org/blog/vscode-...
swift.org
Updating the Visual Studio Code extension for Swift
Today, we are excited to announce a new version of the Swift extension for Visual Studio Code – now published to the extension marketplace as an official supported release of the Swift team. The aim o...
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Doug Schaefer @dougschaefer.bsky.social · 10/02/2025
Uh, Canada got rid of its penny years ago. We were happy to see it go. And everything's cashless now anyway. You guys really should be Canada's 11'th province.
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Adam Keiper @adamkeiper.com · 02/02/2025
Incredibly moving Justin Trudeau remarks: "We have fought and died alongside you....During your darkest hours...we were always there. Standing with you, grieving with you, the American people....Canadians are a little perplexed as to why our closest friends and neighbors are choosing to target us."
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Doug Schaefer @dougschaefer.bsky.social · 02/02/2025
He really did. I was shocked Brady tamed it down and fired it back. Hell of a play!
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Joannis Orlandos @joanniso.bsky.social · 01/02/2025
Embedded Swift being discussed right now by Eric Bariaux. We've also been using Embedded Swift recently, and it's nice to see others in this space working with this too.
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