Sign in

Dave Lester

@davelester.dev
269 followers 209 following 41 posts

Developer tools and open source ecosystems. Product @ Apple. @swift.org.📍 San Francisco

PostsRepliesMedia
Reposted by Dave Lester
Swift Language @swift.org · 08/08/2026
A busy summer for Swift continues. ☀️ In July: • Task Stealers land in Swift Concurrency’s runtime. • SwiftPM gets a package registry reference implementation. • A talk about explicit ownership at PLDI 2026. Read more: www.swift.org/blog/whats-n...
swift.org
What's new in Swift: July 2026 Edition
Welcome to “What’s new in Swift,” a curated digest of releases, videos, and discussions in the Swift project and community.
0266
Reposted by Dave Lester
Swift Package Index @swiftpackageindex.mas.to.ap.brid.gy · 23/06/2026
Swift Package Index has joined Apple, and together we’re building a comprehensive package registry to serve the Swift community’s evolving needs. Read more: www.swiftpackageindex.com/blog/swif…
02112
Reposted by Dave Lester
Swift Language @swift.org · 12/06/2026
Memory-safe. 13% faster on average. ⚡️ The TrueType hinting interpreter in macOS and iOS has been rewritten in Swift, replacing the original C implementation. Pixel-perfect accuracy was validated across 27 million glyphs. And the results: www.swift.org/blog/migrati...
212219
Reposted by Dave Lester
Swift Language @swift.org · 04/06/2026
A unified networking stack for Swift, layered from low-level I/O primitives, through common protocols, to a modern HTTP client and server API. ⚙️ That's what the new Networking workgroup is building. Interested in contributing? Join us: www.swift.org/blog/announc...
swift.org
Announcing the Networking Workgroup
The Swift Ecosystem Steering Group is excited to announce the creation of the Networking workgroup! Workgroups are community-led efforts, formally recognized by the project, to advance key areas of Sw...
05913
Dave Lester @davelester.dev · 02/05/2026
My favorite part of the latest digest? The two Embedded Swift talks it links to. One of them demos Swift on a Game Boy Advance!
050
Reposted by Dave Lester
Swift Language @swift.org · 31/03/2026
Your digest of everything new in Swift has just landed! Read up on the latest release, community projects, evolution proposals, and videos from across the ecosystem: www.swift.org/blog/whats-n...
swift.org
What's new in Swift: March 2026 Edition
Welcome to “What’s new in Swift,” a curated digest of releases, videos, and discussions in the Swift project and community.
0275
Reposted by Dave Lester
Swift Language @swift.org · 31/01/2026
🗞️News from Swift: web apps, a new mail stack, 3D printing, embedded Swift updates, and some community events. Read all about it in the latest Swift blog post: www.swift.org/blog/whats-n...
“After 20 years of shipping web applications, I have never seen fewer crashes and bugs make it to production. Performance has also been excellent, especially after moving our templates to Elementary. Our heaviest pages make it to the browser in less than 100ms.” (Nick Sloan, Studioworks)
0427
Reposted by Dave Lester
Kelsey Hightower @kelseyhightower.com · 26/01/2026
The @swift.org team is demonstrating a level of consistency that makes me believe they really want to see the Swift programming language thrive outside of the Apple ecosystem.
39412
Dave Lester @davelester.dev · 02/01/2026
Happy New Year, @swift.org crew! So happy to be back, I hope everyone enjoyed some time off.
 If you're looking to catch up on Swift news, check out the December digest: www.swift.org/blog/whats-n... and let me know what you think!
swift.org
What's new in Swift: December 2025 Edition
Welcome to the latest digest of news from the Swift project.
0186
Reposted by Dave Lester
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
062
Dave Lester @davelester.dev · 10/11/2025
Excited about this release for the @swift.org and @temporal.io communities.
010
Reposted by Dave Lester
Swift Language @swift.org · 05/11/2025
Indie developers now have more tools in their toolkit for building with Swift across platforms, thanks to Skip. Exciting to see a Swift community member building a business with the open source Swift SDK for Android. skip.tools/blog/skip-fu... #Android
skip.tools
Skip Fuse is now free for Indie Developers!
Since the launch of the official Swift SDK for Android on swift.org last month, we have been overwhelmed by a surge of interest in building cross-platform apps using a single shared SwiftUI codebase. ...
13911
Reposted by Dave Lester
Ben Cohen @airspeedswift.bsky.social · 24/10/2025
My talk from Server Side Swift is up! Talking about how languages make the trade-off between easy to write and fast at runtime, and how (shockingly!) I think #Swift strikes the right balance. www.youtube.com/watch?v=jz3h...
youtube.com
Usability Meets Performance in Swift - Ben Cohen
YouTube video by SwiftServerConf
0175
Reposted by Dave Lester
Johannes Weiss @jweiss.io · 06/10/2025
Made a little thing that may help you profile your services from within their own process -- no extra privileges or tools required.
0105
Reposted by Dave Lester
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.
06017
Dave Lester @davelester.dev · 02/10/2025
Hello @serversideswift.info! #swiftlang
010
Reposted by Dave Lester
Swift Language @swift.org · 25/09/2025
Introducing Swift Configuration, a new way to share and manage configuration for Swift. It's a smarter way to keep secrets safe and separate develop/test/prod environments. More here: forums.swift.org/t/introducin...
let config = ConfigReader(providers: [
    EnvironmentVariablesProvider(),
    try await JSONProvider(filePath: "/etc/config.json")
])
let httpTimeout = config.int(forKey: "http.timeout", default: 60)
print(httpTimeout) // prints 15
07019
Reposted by Dave Lester
Swift Language @swift.org · 24/09/2025
Ahead of next week's ServerSide.swift conference in London, organizer and Swift server workgroup member @0xtim.bsky.social looks back at the growth of Swift as a platform for building server apps: www.swift.org/blog/swift-o...
swift.org
The Growth of the Swift Server Ecosystem
Nearly ten years ago, Swift was open sourced and an official runtime for Linux was released. I’ve been involved with Swift on the server since almost the very beginning, originally picking it up as a ...
05019
Dave Lester @davelester.dev · 17/09/2025
Two weeks until @serversideswift.info at the Science Museum in London! Looking forward to joining in-person and connecting with the community. #swiftlang
062
Reposted by Dave Lester
Swift Language @swift.org · 16/09/2025
Swift 6.2 is here, including so much 🆕🥳: ⏩Approachable concurrency 🦺Opt-in strict memory safety 📦WebAssembly support 🏃Faster build perf for macros 🐞Enhanced async debugging 📚Inline stack-based arrays 🚇Subprocess support 🧪Test result attachments www.swift.org/blog/swift-6...
swift.org
Swift 6.2 Released
We’re excited to announce Swift 6.2, a release aimed at making every Swift developer more productive, regardless of where or how you write code. From improved tooling and libraries to enhancements in ...
08532
Reposted by Dave Lester
Honza Dvorsky @czechboy0.dev · 15/09/2025
Excited to present at @serversideswift.info this year 🏎️ Last year was a lot of fun, and I can't wait to see y'all in person again 🙏
192
Dave Lester @davelester.dev · 27/06/2025
Developing Swift on server? Less than two weeks to submit a talk for @serversideswift.info, a conference taking place October 2/3 in London, UK that @0xTim.bsky.social is organizing once again this year! CFP closes July 10, 2025 23:59 UTC. www.papercall.io/serversidesw... #SwiftLang
papercall.io
PaperCall.io - ServerSide.swift 2025
ServerSide.swift is a framework-independent, server-side Swift conference, to bring all of the community toghether to learn and share. The conference is aimed at being a non-profit conference and…
0137
Dave Lester @davelester.dev · 23/06/2025
Join the @swift.org server meetup group online in less than an hour. Talks feature embedded Swift and edge AI forums.swift.org/t/meetup-swi... #swiftlang
forums.swift.org
[meetup] Swift Server Meetup #5 - Online - June 23rd
📅 Monday, June 23rd, 2025 🕖 7pm CEST (10am PDT / 1pm EDT) 🌐 Online – https://youtube.com/live/0JrLkHgZa-k We’re excited to invite you to the next Swift Server Side Meetup, where Swift takes a…
012
Reposted by Dave Lester
InfoQ @infoq.com · 16/06/2025
#Apple has migrated its global Password Monitoring service from #Java to #Swift! The result❓ 40% increase in throughput and significantly reduced memory usage - freeing up nearly 50% of previously allocated Kubernetes capacity. Learn more: bit.ly/4mZcs1T #InfoQ #Performance #SoftwareDevelopment
073
Reposted by Dave Lester
Swift Language @swift.org · 04/06/2025
Ahem... 🆕
616132
Reposted by Dave Lester
Swift Language @swift.org · 03/06/2025
The story behind the Apple Password Monitoring service, handling multiple billions of requests per day from devices all over the world, which was recently rewritten in Swift: www.swift.org/blog/swift-a...
In comparison with the previous Java service, the updated backend delivers a 40% increase in performance, along with improved scalability, security, and availability.
19326
Reposted by Dave Lester
Sensory Ecology Lab @sensoryecology.bsky.social · 03/05/2025
“Our eyes could potentially be coaxed into a special repair mode above and beyond our natural self-healing abilities, according to a new study, thanks to the delivery of antibodies that trigger nerve cell regeneration in the retina.” #scicomm #neuroskyence www.sciencealert.com/experimental... 🧪 🧠 👁️
sciencealert.com
Experimental Drug Tested in Mice Repairs The Eye to Restore Vision
Our eyes could potentially be coaxed into a special repair mode above and beyond our natural self-healing abilities, according to a new study, thanks to the delivery of antibodies that trigger nerve c...
317046
Dave Lester @davelester.dev · 27/04/2025
Sunday morning vibe: Alt-J (2012 tiny desk concert) www.youtube.com/watch?v=xKdp...
youtube.com
Alt-J: NPR Music Tiny Desk Concert
YouTube video by NPR Music
010
Dave Lester @davelester.dev · 05/04/2025
Saw Jake Xerxes Fussell in concert tonight in Novato! Great show.
000
Reposted by Dave Lester
Swift Language @swift.org · 31/03/2025
📰 Announcing Swift 6.1 📰 With ergonomic improvements to concurrency, simpler Objective-C interop, productivity and package improvements: swift.org/blog/swift-6... Install with Xcode 16.3 or the new swiftly version manager!
08533
Reposted by Dave Lester
Swift Language @swift.org · 26/03/2025
Spring is here (in the northern hemisphere) 🪺🐣 -- and what could be a better time for some code tidying? Fortunately Periphery is here to rescue us, building unused code detection on top of swift-syntax. Have you tried it? github.com/peripheryapp...
24512
Reposted by Dave Lester
Mishal @shahmishal.bsky.social · 08/03/2025
Swift 6.2 Release process announced: forums.swift.org/t/swift-6-2-... #swiftlang
forums.swift.org
Swift 6.2 Release Process
This post describes the release process, and estimated schedule for Swift 6.2. Snapshots of Swift 6.2 Downloadable snapshots of the Swift 6.2 release branch will be posted regularly as part of contin...
041
Dave Lester @davelester.dev · 06/03/2025
Thrilled to have rejoined Apple as a Senior Product Manager for Swift!
080
Dave Lester @davelester.dev · 04/03/2025
The new NixOS Foundation Board has been announced discourse.nixos.org/t/announcing... #noxos #opensource
discourse.nixos.org
Announcing the New NixOS Foundation Board
Hey Everyone! + Happy Almost 22nd Birthday to Nix 😉 The NixOS Foundation board rotation selection has concluded, and we’re excited to introduce the new board members! This is the first rotation held ...
020
Dave Lester @davelester.dev · 01/02/2025
Standing room only in the #swiftlang DevRom at #fosdem! Starting at the top of the hour and live streaming online: live.fosdem.org/watch/k4401
live.fosdem.org
FOSDEM 2025 - Stream K.4.401
000
Dave Lester @davelester.dev · 01/02/2025
Up next at #fosdem in building K! “Incremental Memory Safety in an Established Software Stack. Lessons learned from Swift” #swiftlang
031
Reposted by Dave Lester
Anne Bertucio de Hollembeak @annebdh.bsky.social · 26/01/2025
Google’s #opensource program office is hiring! We’re looking for people who have experience working at the intersection of open source and business, and who enjoy working with engineering and product teams to get things done (We also enjoy OSS puns and animal memes) www.google.com/about/career...
google.com
Developer Relations Engineer, Open Source Strategy — Google Careers
143
Dave Lester @davelester.dev · 26/01/2025
A poem for the week ahead, [Traveler, your footprints], by Antonio Muchado www.poetryfoundation.org/poems/58815/.... I particularly like the English translation that Jennifer Michael Hecht read on the The Gray Area podcast, which ended with “Traveler, there is no path, only a foam trail on the sea”
poetryfoundation.org
[Traveler, your footprints]
Traveler, your footprints are the only road, nothing else. Traveler, there is no road; you make your own path as you walk. As you walk, you make your own road, and when you look back you see the path ...
111
Dave Lester @davelester.dev · 25/01/2025
TIL: Lumon's office building in Severance is actually the Bell Labs Holmdel Complex en.wikipedia.org/wiki/Bell_La...
en.wikipedia.org
Bell Labs Holmdel Complex - Wikipedia
020
Dave Lester @davelester.dev · 23/01/2025
Looking forward to being in Brussels for @fosdem.bsky.social, including the Swift DevRoom!
171
Dave Lester @davelester.dev · 09/01/2025
From the homepage of Hacker News: "Swift for C++ Practitioners, Part 12: Move Semantics" by Doug Gregor www.douggregor.net/posts/swift-.... As a commenter noted, you may want to start with Part 1: www.douggregor.net/posts/swift-.... #swiftlang
douggregor.net
Swift for C++ Practitioners, Part 12: Move Semantics | Doug's Compiler Corner
Swift for C++ Practitioners, Part 12: Move Semantics
020
Dave Lester @davelester.dev · 07/01/2025
Embedded Swift, Swift on Server, IoT, Cross-Platform Development, and more -- excited about the range of talks in the #swiftlang Developer Room at #fosdem next month
141
Dave Lester @davelester.dev · 25/12/2024
First time having eggnog and the verdict is… that it’s delicious
010
Dave Lester @davelester.dev · 21/12/2024
Earlier this year I briefly presented at GitHub's OSPO Advisory Board meeting about analyzing GitHub Data with BigQuery, which inspired this written tutorial: davelester.github.io/gharchive-bi.... Open to ideas and feedback on how to improve and expand the resource.
davelester.github.io
Analyzing GitHub Data with BigQuery Using GH Archive
Examples Using BigQuery to Analyze GH Archive Data
000
Dave Lester @davelester.dev · 17/12/2024
If you're interested in delving deeper into the design of recent #swiftlang technical directions, as well as the requirements that are driving their development, I highly recommend exploring the Swift vision documents:
github.com
swift-evolution/visions at main · swiftlang/swift-evolution
This maintains proposals for changes and user-visible enhancements to the Swift Programming Language. - swiftlang/swift-evolution
1113
Dave Lester @davelester.dev · 16/12/2024
Fantastic article in the latest issue of iOS Dev Weekly which features some of the work Luke Howard is doing to develop a hardware project that uses #swiftlang
iosdevweekly.com
Issue 691
Can Swift, C/C++, Linux, Android, Dart, and Flutter all work together? They can! 🤖
082
Dave Lester @davelester.dev · 09/12/2024
A new live album by Nils Frahm dropped last week music.apple.com/us/album/par...
music.apple.com
Paris by Nils Frahm on Apple Music
Album · 2024 · 10 Songs
000
Dave Lester @davelester.dev · 03/12/2024
Discovered 'Repo Lockdown' a while ago — a GitHub Action for automating the closing and locking of Issues/PRs. Useful if you want your source available but aren't accepting community contributions. github.com/marketplace/actions/repo…
github.com
Repo Lockdown - GitHub Marketplace
Immediately close and lock issues and pull requests
010
Dave Lester @davelester.dev · 27/11/2024
Day 2 of yoga at home: ✅ Feeling accomplished! My goal is to stay consistent through the end of the year.
000