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Stijn Willems

@stijn.antping.ai
182 followers 267 following 291 posts

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!

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Reposted by Stijn Willems
Point-Free @pointfree.co · 23/09/2026
We’ve started a new series: Designing for Isolation Learn how designing for isolation from the beginning lets you embrace non-Sendable types, maintain thread safety, and keep asynchrony from infecting every corner of your codebase. Follow along here: www.pointfree.co/collections/...
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Stijn Willems @stijn.antping.ai · 25/09/2026
Agent of whom? economist.com/business/202... from The Economist. I still believe in all the good AI can do I just struggle to get it fun. Who will be the user?
economist.com
Agent of whom?
The relationship between people and their AI representatives needs examination
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Reposted by Stijn Willems
rotecodefraktion.bsky.social @rotecodefraktion.bsky.social · 14/05/2026
New series "building a local LLM gateway in Swift with Hummingbird "— serving both the Anthropic and OpenAI APIs, one backend, deployable as a 12 MB binary. Prologue explains why Swift on the server makes sense in 2026. www.rotecodefraktion.de/en/blog/humm... #ai #hummingbird #swift
rotecodefraktion.de
Swift on the Server — Hummingbird 2 and a Local LLM Gateway
Prologue · Series: Swift on the Server with Hummingbird. Why Swift on the server is no longer a hobby project in 2026, how Hummingbird differs from Vapor and why we chose a local LLM gateway as our de...
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Stijn Willems @stijn.antping.ai · 03/04/2026
1/3 GitHub flipped Copilot training data collection from opt-in to opt-out. That's not a privacy policy. That's a reversal disguised as a setting.
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Mark @humaiblog.bsky.social · 30/03/2026
The 'no Xcode needed' part is the real unlock. Xcode has always been the steepest entry tax for Swift. Vibe coding removes the toolchain friction and lets the logic come first. The IDE becomes optional.
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Joannis Orlandos @joanniso.bsky.social · 30/03/2026
Wendy allows you to write Swift for a variety of embedded devices. Jetson & Raspberry Pi - and even microcontrollers!
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Swift Language @swift.org · 24/03/2026
Swift 6.3 has landed! 🚀 This release brings community-driven Android support into the official toolchain, along with major improvements to C interoperability, the build system, and embedded Swift. Read more: www.swift.org/blog/swift-6... #AndroidDev #iOSDev
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Hacker News 20 @betterhn20.e-work.xyz · 25/03/2026
Building a coding agent in Swift from scratch github.com/ivan-magda/swift-claude-… (news.ycombinator.com/item?id=475156…)
github.com
GitHub - ivan-magda/swift-claude-code: A Swift reimplementation of a Claude Code-style coding agent, built stage by stage to explore what makes coding agents work
A Swift reimplementation of a Claude Code-style coding agent, built stage by stage to explore what makes coding agents work - ivan-magda/swift-claude-code
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Stephen Belanger @stephenbelanger.com · 25/03/2026
I recently released sequins.dev, to have all the Observability signals you expect like logs, metrics, traces, and profiles, but as a macOS app which you can use for local dev. It's also completely free and open source. Give it a try, and let me know if there's any features you want!
sequins.dev
Sequins — Local Observability on your machine.
Free macOS app for capturing and visualizing OpenTelemetry traces, logs, metrics, and profiles. 100% local, no cloud, no account required.
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Kevin Åberg Kultalahti @kevinak.se · 17/03/2026
Soft-launching a lil' side project I've been working on! Say hello to Tablinum - a local-first database with built-in sync, collaboration and data persistence! tablinum.dev
tablinum.dev
Tablinum
A local-first database for the browser with encrypted sync and built-in collaboration.
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Marco Oliver Grunwald @mgrunwald.bsky.social · 18/03/2026
Ghostmoon.app [pre-release] I created a macOS utility app called Ghostmoon. It lives in the macOS menu bar and gives you easy access to hidden system settings, essential stats, maintenance routines and other functionalities useful in everyday work. #macOS #menubar #prerelease #IndieApp #Mac #Swift
Screenshot of Ghostmoon.app - a utility app for macOS.
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elkraneo @elkraneo.bsky.social · 17/03/2026
The joy of C++ interoperability with Swift.
Xcode local archive panel for the macOS app target “Preflight-macOS-AppStore-Release.” The left shows the app title, the right column lists many builds in chronological order: each line reads “Build Today, [time],” with a yellow warning badge on the latest entry and red hazard icons for all previous builds, indicating failures for a whole day until it succeeds
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Stijn Willems @stijn.antping.ai · 17/03/2026
Every tool I see has to pass a debate before I touch it. Not a quick scan. Agents trained on my roadmap, arguing for and against. I sit in judgment. This is not caution. It is governance.
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Reposted by Stijn Willems
Konrad ‘ktoso’ Malawski @kto.so · 11/03/2026
Hot take: half of LLM use for code editing is safe refactorings that intellij was able to do ages ago, but primarily just in Java, and never quite reached this level in other languages... For better or worse, we now can, but with lots of $$$ burnt each time you do huh
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Konrad ‘ktoso’ Malawski @kto.so · 12/03/2026
To counter balance my previous agents tweet about source code editing. In having a load of success outsourcing simple tasks and fix up's to agents and aid in research of codebases or problems. Also "try these 20things to reproduce, minimize a reproducer" and stuff like that.
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Stijn Willems @stijn.antping.ai · 17/03/2026
This made me genuinely happy. An AI agent gets dramatically more accurate when you tell it: debate what you're unsure about, and stumbling is ok. We build tech like we raise children. Tech meetings should start talking about love in their stack.
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Reposted by Stijn Willems
Peter Friese @peterfriese.dev · 12/03/2026
AI can write working code, but can it build a working system? Why engineering discipline still matters. by Miguel Ramos www.linkedin.com/pulse/illus...
linkedin.com
The Illusion of "Working" Code: Why Engineering Matters More Than Ever
We are witnessing a fascinating democratization of software development. At lightning speed, LLMs can produce functional code, turning anyone into a creator.
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Stijn Willems @stijn.antping.ai · 14/03/2026
Mr orange bans electric cars and after boms oil supplies. So its goal is what. Get all of the US on bicycles? China’s Edge in an Oil Shock: Electric Cars and Renewables www.nytimes.com/2026/03/14/b...
nytimes.com
China’s Edge in an Oil Shock: Electric Cars and Renewables
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Manton Reece @manton.org · 11/03/2026
From reviews, sounds like the MacBook Neo is a great little laptop. It has been a while since I’ve thought an Apple product actually followed that “a thousand no’s for every yes” video from WWDC a decade ago… This laptop makes the right trade-offs.
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Reposted by Stijn Willems
Swift Language @swift.org · 06/03/2026
🏗️What if your whole stack was built with Swift? @telemetrydeck.com made it a reality, building an internet-scale, privacy-first analytics backend from the ground up. Read their story: www.swift.org/blog/buildin...
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Swift Language @swift.org · 03/03/2026
Swift/JS interop used to mean "JSObject", "JSValue", and runtime surprises. BridgeJS changes that: annotate your Swift, get typed glue code in both directions. Compile-time safe. Zero manual boilerplate. 🧵
The BridgeJS Playground at https://swiftwasm.org/JavaScriptKit/PlayBridgeJS/
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Reposted by Stijn Willems
stackotter @stackotter.dev · 04/03/2026
I've just released SwiftCrossUI v0.2.0 (two and a half years after v0.1.0), and I'm aiming to begin making regular releases now that I'm focusing on SwiftCrossUI full time. 492 commits, 127 PRs, and 77k changed lines. github.com/moreSwift/sw...
github.com
Release v0.2.0 - 2.5 years later · moreSwift/swift-cross-ui
Overview The headline feature of the past 2.5 years of work is probably the new layout system for most users. It standardizes layout behaviour across all backends, making it much easier to make you...
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Rudrank Riyam @rudrank.bsky.social · 12/02/2026
VecturaKit 5.0.0 is out! Big embedder release for Swift on-device RAG: - ModernBERT, RoBERTa, XLM-RoBERTa + NomicBERT support - Cleaner model-family resolution - Stronger validation/BERT fallback - Bumped up platform minimums github.com/rryam/Vectu...
github.com
GitHub - rryam/VecturaKit: Swift-based vector database for on-device RAG using MLTensor and MLX Embedders
Swift-based vector database for on-device RAG using MLTensor and MLX Embedders - rryam/VecturaKit
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Reposted by Stijn Willems
Daniel Saidi @danielsaidi.bsky.social · 07/02/2026
OnboardingKit 9.2 is out, with new styling options and convenience initializers for the welcome screen and its USP list items. #SwiftUI github.com/danielsaidi/...
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Reposted by Stijn Willems
Point-Free @pointfree.co · 27/01/2026
Some say Xcode previews replace unit tests 😵‍💫. We strongly disagree. That's why we spent so much time making sure SQLiteData is 100% testable. Learn how to bootstrap an in-memory database per test and assert on feature behavior. www.pointfree.co/episodes/ep3...
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Stijn Willems @stijn.antping.ai · 27/01/2026
An American Street www.nytimes.com/2026/01/27/u...
nytimes.com
An American Street
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Gigi @gcqd.fr · 29/12/2025
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.
github.com
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
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Mishal @shahmishal.bsky.social · 18/12/2025
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!
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Martin @martinp7r.com · 19/12/2025
Look, there's an official #Claude LSP plugin for #swiftlang @swift.org now! github.com/anthropics/c... github.com/anthropics/c...
github.com
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
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Angelo 🎟️ Passable @angomarcello.bsky.social · 19/12/2025
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. 👨🏻‍💻
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Swift Language @swift.org · 18/12/2025
Exploring the Swift SDK for Android: updates on ongoing progress! www.swift.org/blog/explori...
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Miguel de Icaza @migueldeicaza.bsky.social · 13/12/2025
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
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Stijn Willems @stijn.antping.ai · 09/11/2025
beauty in the making? Let's find out in the coming months :)
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Joannis Orlandos @joanniso.bsky.social · 20/10/2025
🚨 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
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
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Stijn Willems @stijn.antping.ai · 15/10/2025
github.com/swiftlens/sw... anybody experience if this improves Claude code? #swiftlang
github.com
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...
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Reposted by Stijn Willems
Matt Massicotte @massicotte.org · 13/10/2025
My talk from ServerSide is up!
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Stijn Willems @stijn.antping.ai · 13/10/2025
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 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.
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Stijn Willems @stijn.antping.ai · 09/10/2025
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.
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Stijn Willems @stijn.antping.ai · 07/10/2025
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.
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ServerSide.swift @serversideswift.info · 07/10/2025
An Introduction to Valkey-Swift by Adam Fowler youtu.be/RNVMM1p7jgU
youtu.be
Introduction to Valkey-Swift - Adam Fowler
🎥 Recorded at the ServerSide.swift conference in London in 2025. 🙌 Sponsored by Broken Hands: https://www.brokenhands.io 🐥 Twitter: https://twitter.com/swiftserverconf 🐘 Mastodon:…
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Hacker News 50 @betterhn50.e-work.xyz · 06/10/2025
Apps SDK developers.openai.com/apps-sdk (news.ycombinator.com/item?id=454945…)
developers.openai.com
Apps SDK
Learn how to use Apps SDK by OpenAI. Our framework to build apps for ChatGPT.
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Swift Language @swift.org · 06/10/2025
New tooling for profiling performance-critical services with Swift -- introducing the Swift Profile Recorder. More here: www.swift.org/blog/swift-p...
Screenshot of the output of Swift Profile Recorder, running Hummingbird’s hello example visualized in Speedscope.
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Jaleel Akbashev @jaleel.bsky.social · 04/10/2025
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. 🤔
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TelemetryDeck App Analytics @telemetrydeck.com · 03/10/2025
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
TelemetryDeck Fall Update 2025 | TelemetryDeck
Learn what's new with your favorite app analytics solution.
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Daniel Jay @breakth-esystem.bsky.social · 03/10/2025
Fantastic! @mikaelacaron.com just announced learnswift.space, a new blog about leaning swift 😍
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Stijn Willems @stijn.antping.ai · 03/10/2025
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
developer.apple.com
Validating apps that connect to your server | Apple Developer Documentation
Verify that connections to your server come from legitimate instances of your app.
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Stijn Willems @stijn.antping.ai · 03/10/2025
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
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...
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Stijn Willems @stijn.antping.ai · 03/10/2025
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
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Stijn Willems @stijn.antping.ai · 03/10/2025
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
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Stijn Willems @stijn.antping.ai · 03/10/2025
@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
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