Stijn Willems
@doozmen.bsky.social
Father, Swift dev. I like pushing all buttons, breaking things to see how it works and rebuilding. I wish news would focus more on science, and positive entrepreneurial spirits. So I will try to post about that!
Reposted by Stijn Willems
Uploaded a couple of repos.
SwiftStaticAnalysis A CLI tool that flags copy-pasted code and unused declarations. github.com/g-cqd/SwiftS...
CSVCoder A CSV parser. Fits into Codable, handles macros, and tries to be memory efficient. github.com/g-cqd/CSVCoder
They get the job done, reasonably fast.
SwiftStaticAnalysis A CLI tool that flags copy-pasted code and unused declarations. github.com/g-cqd/SwiftS...
CSVCoder A CSV parser. Fits into Codable, handles macros, and tries to be memory efficient. github.com/g-cqd/CSVCoder
They get the job done, reasonably fast.
GitHub - g-cqd/SwiftStaticAnalysis: High-performance Swift static analysis framework for code duplication detection and unused code elimination
High-performance Swift static analysis framework for code duplication detection and unused code elimination - g-cqd/SwiftStaticAnalysis
github.com
December 29, 2025 at 3:44 AM
Uploaded a couple of repos.
SwiftStaticAnalysis A CLI tool that flags copy-pasted code and unused declarations. github.com/g-cqd/SwiftS...
CSVCoder A CSV parser. Fits into Codable, handles macros, and tries to be memory efficient. github.com/g-cqd/CSVCoder
They get the job done, reasonably fast.
SwiftStaticAnalysis A CLI tool that flags copy-pasted code and unused declarations. github.com/g-cqd/SwiftS...
CSVCoder A CSV parser. Fits into Codable, handles macros, and tries to be memory efficient. github.com/g-cqd/CSVCoder
They get the job done, reasonably fast.
Reposted by Stijn Willems
Swift’s first Pre-FOSDEM Community Event is happening Friday, January 30th, from 12 PM to 6 PM! If you’re interested in giving a talk or volunteering, check out swiftlang.github.io/event-fosdem/.
The deadline to submit proposals is January 5th, 2026!
The deadline to submit proposals is January 5th, 2026!
December 18, 2025 at 6:15 PM
Swift’s first Pre-FOSDEM Community Event is happening Friday, January 30th, from 12 PM to 6 PM! If you’re interested in giving a talk or volunteering, check out swiftlang.github.io/event-fosdem/.
The deadline to submit proposals is January 5th, 2026!
The deadline to submit proposals is January 5th, 2026!
Reposted by Stijn Willems
Look, there's an official #Claude LSP plugin for #swiftlang @swift.org now!
github.com/anthropics/c...
github.com/anthropics/c...
github.com/anthropics/c...
github.com/anthropics/c...
GitHub - anthropics/claude-plugins-official: Anthropic-managed directory of high quality Claude Code Plugins.
Anthropic-managed directory of high quality Claude Code Plugins. - anthropics/claude-plugins-official
github.com
December 19, 2025 at 4:35 AM
Look, there's an official #Claude LSP plugin for #swiftlang @swift.org now!
github.com/anthropics/c...
github.com/anthropics/c...
github.com/anthropics/c...
github.com/anthropics/c...
Reposted by Stijn Willems
I'm seriously considering rebranding myself as a "cross-platform Swift developer" compared to "Apple platform developer". Swift in the cloud and on Android is doing amazing and for me this will be the future. 👨🏻💻
December 19, 2025 at 11:03 AM
I'm seriously considering rebranding myself as a "cross-platform Swift developer" compared to "Apple platform developer". Swift in the cloud and on Android is doing amazing and for me this will be the future. 👨🏻💻
Reposted by Stijn Willems
Exploring the Swift SDK for Android: updates on ongoing progress! www.swift.org/blog/explori...
December 18, 2025 at 11:53 PM
Exploring the Swift SDK for Android: updates on ongoing progress! www.swift.org/blog/explori...
Reposted by Stijn Willems
If you use Swift Macros in a library, use this script to remove 50 megs of junk that Xcode forces into your binaries:
github.com/migueldeicaz...
This has been a public service announcement from the Latino Coalition for Smaller Binaries.
github.com/feedback-ass...
github.com/migueldeicaz...
This has been a public service announcement from the Latino Coalition for Smaller Binaries.
github.com/feedback-ass...
github.com
December 13, 2025 at 4:00 PM
If you use Swift Macros in a library, use this script to remove 50 megs of junk that Xcode forces into your binaries:
github.com/migueldeicaz...
This has been a public service announcement from the Latino Coalition for Smaller Binaries.
github.com/feedback-ass...
github.com/migueldeicaz...
This has been a public service announcement from the Latino Coalition for Smaller Binaries.
github.com/feedback-ass...
beauty in the making? Let's find out in the coming months :)
November 9, 2025 at 12:03 AM
beauty in the making? Let's find out in the coming months :)
Reposted by Stijn Willems
🚨 Discount Code "joannis" and get €100,- off your Do iOS tickets if you join my workshop on Embedded Swift!
appforce1.paydro.com/do-ios-2025/...
appforce1.paydro.com/do-ios-2025/...
Register for Do iOS 2025
I'm going to attend Do iOS 2025 on November11. Who is joining me? Register at https://appforce1.paydro.com/do-ios-2025
appforce1.paydro.com
October 20, 2025 at 1:17 PM
🚨 Discount Code "joannis" and get €100,- off your Do iOS tickets if you join my workshop on Embedded Swift!
appforce1.paydro.com/do-ios-2025/...
appforce1.paydro.com/do-ios-2025/...
github.com/swiftlens/sw... anybody experience if this improves Claude code? #swiftlang
GitHub - swiftlens/swiftlens: SwiftLens is a Model Context Protocol (MCP) server that provides deep, semantic-level analysis of Swift codebases to any AI models. By integrating directly with Apple's S...
SwiftLens is a Model Context Protocol (MCP) server that provides deep, semantic-level analysis of Swift codebases to any AI models. By integrating directly with Apple's SourceKit-LSP, SwiftLens...
github.com
October 15, 2025 at 1:33 AM
github.com/swiftlens/sw... anybody experience if this improves Claude code? #swiftlang
Reposted by Stijn Willems
My talk from ServerSide is up!
More videos continue to land! Next up, Matt Massicotte teaches us how to approach approachable concurrency
youtu.be/eqeDPIK2Msc
youtu.be/eqeDPIK2Msc
How To Approach Approachable Concurrency - Matt Massicotte
🎥 Recorded at the ServerSide.swift conference in London in 2025.
🙌 Sponsored by Broken Hands: https://www.brokenhands.io
🐥 Twitter: https://twitter.com/swiftserverconf
🐘 Mastodon:…
youtu.be
October 13, 2025 at 1:23 PM
My talk from ServerSide is up!
I was experimenting with claude sub agents and created this tool. Might help somebody. Agents make managing conversation a lot easier. I'm still searching for the best way to use them but this is a start. I'm curious how you use it? All in #swiftlang
doozmen-stijn-willems.ghost.io/claude-agent...
doozmen-stijn-willems.ghost.io/claude-agent...
Claude Agents CLI - Managing AI Agents for Swift Development
A Swift command-line tool for installing and managing specialized Claude Code agents. Install 29 built-in agents globally or per-project with a single command.
doozmen-stijn-willems.ghost.io
October 13, 2025 at 2:52 PM
I was experimenting with claude sub agents and created this tool. Might help somebody. Agents make managing conversation a lot easier. I'm still searching for the best way to use them but this is a start. I'm curious how you use it? All in #swiftlang
doozmen-stijn-willems.ghost.io/claude-agent...
doozmen-stijn-willems.ghost.io/claude-agent...
Just discovered Universal Control by accident. My MacBook's trackpad suddenly controlled my Mac Studio - no cables. Turns out Apple built this years ago. One keyboard, two Macs, cursor flows between screens. Works perfectly once you get it.
October 9, 2025 at 11:42 AM
Just discovered Universal Control by accident. My MacBook's trackpad suddenly controlled my Mac Studio - no cables. Turns out Apple built this years ago. One keyboard, two Macs, cursor flows between screens. Works perfectly once you get it.
The AI bubble: everyone building "better search" because that's the frame people understand.
The actual shift: AI as context engineering—understanding YOUR data, YOUR work, creating value from what you already have.
That's not search. That's different.
The actual shift: AI as context engineering—understanding YOUR data, YOUR work, creating value from what you already have.
That's not search. That's different.
October 7, 2025 at 9:28 PM
The AI bubble: everyone building "better search" because that's the frame people understand.
The actual shift: AI as context engineering—understanding YOUR data, YOUR work, creating value from what you already have.
That's not search. That's different.
The actual shift: AI as context engineering—understanding YOUR data, YOUR work, creating value from what you already have.
That's not search. That's different.
Reposted by Stijn Willems
Apps SDK
Learn how to use Apps SDK by OpenAI. Our framework to build apps for ChatGPT.
developers.openai.com
October 6, 2025 at 7:00 PM
Reposted by Stijn Willems
New tooling for profiling performance-critical services with Swift -- introducing the Swift Profile Recorder. More here: www.swift.org/blog/swift-p...
October 6, 2025 at 5:45 PM
New tooling for profiling performance-critical services with Swift -- introducing the Swift Profile Recorder. More here: www.swift.org/blog/swift-p...
Reposted by Stijn Willems
Just double checked temporal, looks interesting. „Pure“ workflows and activities like effect operations, they even have a SideEffect term in their docs. 🙃
Replaying workflows and blocking them indefinitely also looks nice, and it’s language agnostic. 🤔
Replaying workflows and blocking them indefinitely also looks nice, and it’s language agnostic. 🤔
October 4, 2025 at 7:13 PM
Just double checked temporal, looks interesting. „Pure“ workflows and activities like effect operations, they even have a SideEffect term in their docs. 🙃
Replaying workflows and blocking them indefinitely also looks nice, and it’s language agnostic. 🤔
Replaying workflows and blocking them indefinitely also looks nice, and it’s language agnostic. 🤔
Reposted by Stijn Willems
Fall is a great season for another founder update. @meetlisa.bsky.social shares a few thoughts on #GermanUnityDay, has gathered some figures (transparency!!!), and reflects on participating (and skipping) business events.
telemetrydeck.com/blog/fall-update-2025/?source=bluesky
telemetrydeck.com/blog/fall-update-2025/?source=bluesky
TelemetryDeck Fall Update 2025 | TelemetryDeck
Learn what's new with your favorite app analytics solution.
telemetrydeck.com
October 3, 2025 at 8:15 AM
Fall is a great season for another founder update. @meetlisa.bsky.social shares a few thoughts on #GermanUnityDay, has gathered some figures (transparency!!!), and reflects on participating (and skipping) business events.
telemetrydeck.com/blog/fall-update-2025/?source=bluesky
telemetrydeck.com/blog/fall-update-2025/?source=bluesky
Reposted by Stijn Willems
Fantastic! @mikaelacaron.com just announced learnswift.space, a new blog about leaning swift 😍
October 3, 2025 at 3:16 PM
Fantastic! @mikaelacaron.com just announced learnswift.space, a new blog about leaning swift 😍
Device Check on server-side Swift: You need the private key from App Store Connect, not embedded in your app. The app uses DeviceCheck framework client-side, your Vapor/Hummingbird server validates tokens server-side with the .p8 key. #swiftlang #serversideSwift2025
Validating apps that connect to your server | Apple Developer Documentation
Verify that connections to your server come from legitimate instances of your app.
developer.apple.com
October 3, 2025 at 5:55 PM
Device Check on server-side Swift: You need the private key from App Store Connect, not embedded in your app. The app uses DeviceCheck framework client-side, your Vapor/Hummingbird server validates tokens server-side with the .p8 key. #swiftlang #serversideSwift2025
If a team that lived in C and Go can build production container infrastructure in Swift, the language is ready for serious server-side systems work. - Eric Ernst, Apple #swiftlang #serversideSwift2025
github.com/apple/contai...
github.com/apple/contai...
GitHub - apple/container: A tool for creating and running Linux containers using lightweight virtual machines on a Mac. It is written in Swift, and optimized for Apple silicon.
A tool for creating and running Linux containers using lightweight virtual machines on a Mac. It is written in Swift, and optimized for Apple silicon. - GitHub - apple/container: A tool for creati...
github.com
October 3, 2025 at 4:03 PM
If a team that lived in C and Go can build production container infrastructure in Swift, the language is ready for serious server-side systems work. - Eric Ernst, Apple #swiftlang #serversideSwift2025
github.com/apple/contai...
github.com/apple/contai...
During her AWS internship, Mona Dierickx built the Swift Bedrock Library - a type-safe wrapper that turns 20 lines of boilerplate AWS SDK code into 5 clean lines. No more string model IDs or manual config. #swiftlang #serversideSwift2025
October 3, 2025 at 1:33 PM
During her AWS internship, Mona Dierickx built the Swift Bedrock Library - a type-safe wrapper that turns 20 lines of boilerplate AWS SDK code into 5 clean lines. No more string model IDs or manual config. #swiftlang #serversideSwift2025
Swift gets durable workflows! The Swift Temporal SDK brings true fault-tolerant execution to server-side Swift. Write workflows that survive crashes, restarts, and failures—your code persists state automatically and resumes from interruption.
#swiftlang #serversideSwift2025
#swiftlang #serversideSwift2025
October 3, 2025 at 1:15 PM
Swift gets durable workflows! The Swift Temporal SDK brings true fault-tolerant execution to server-side Swift. Write workflows that survive crashes, restarts, and failures—your code persists state automatically and resumes from interruption.
#swiftlang #serversideSwift2025
#swiftlang #serversideSwift2025
@tachyonics.bsky.social Question on smockable's preprocessorFlag option I feel like it should be the default to wrap generated code from the macro with DEBUG NO? #swiftlang #serversideSwift2025
October 3, 2025 at 12:01 PM
@tachyonics.bsky.social Question on smockable's preprocessorFlag option I feel like it should be the default to wrap generated code from the macro with DEBUG NO? #swiftlang #serversideSwift2025
The Swift compiler is your first line of defense for server deployments. Pull runtime failures into compile-time by avoiding Any types, untyped dictionaries, and implicit unwraps. Type safety isn’t academic—it’s what keeps your servers running. #swiftlang #serversideSwift2025
October 3, 2025 at 11:49 AM
The Swift compiler is your first line of defense for server deployments. Pull runtime failures into compile-time by avoiding Any types, untyped dictionaries, and implicit unwraps. Type safety isn’t academic—it’s what keeps your servers running. #swiftlang #serversideSwift2025