Dave Lester
@davelester.dev
Developer tools and open source ecosystems. Product @ Apple. @swift.org.📍 San Francisco
New Swift package that caught my attention: SwiftDisc, a native Swift API for Discord github.com/M1tsumi/Swif... #swiftlang
GitHub - M1tsumi/SwiftDisc: SwiftDisc – Native Swift Discord API for iOS & macOS bots. Zero dependencies, full v10 REST + Gateway, async/await, Codable models, slash commands, sharding, rate limiting....
SwiftDisc – Native Swift Discord API for iOS & macOS bots. Zero dependencies, full v10 REST + Gateway, async/await, Codable models, slash commands, sharding, rate limiting. Build powerful bots ...
github.com
November 11, 2025 at 11:49 PM
New Swift package that caught my attention: SwiftDisc, a native Swift API for Discord github.com/M1tsumi/Swif... #swiftlang
Excited about this release for the @swift.org and @temporal.io communities.
Managing long-running, stateful workflows in Swift just got a whole lot easier. The new Temporal SDK brings first-class support for building reliable, fault-tolerant applications. www.swift.org/blog/swift-t... @temporal.io
November 10, 2025 at 10:46 PM
Excited about this release for the @swift.org and @temporal.io communities.
Reposted by Dave Lester
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 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. ...
skip.tools
November 5, 2025 at 9:03 PM
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
Reposted by Dave Lester
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...
www.youtube.com/watch?v=jz3h...
Usability Meets Performance in Swift - Ben Cohen
YouTube video by SwiftServerConf
www.youtube.com
October 24, 2025 at 4:06 PM
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...
www.youtube.com/watch?v=jz3h...
Reposted by Dave Lester
Made a little thing that may help you profile your services from within their own process -- no extra privileges or tools required.
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 7:24 PM
Made a little thing that may help you profile your services from within their own process -- no extra privileges or tools required.
Reposted by Dave Lester
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...
Hello @serversideswift.info! #swiftlang
October 2, 2025 at 9:27 AM
Hello @serversideswift.info! #swiftlang
Reposted by Dave Lester
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](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:5mxqysxzortsy4ohbj5dfd6r/bafkreigukscbdcatvojbuqsijvk6pkc5djzbttby3dxzub2jul6xj4nqhy@jpeg)
September 25, 2025 at 6:46 PM
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...
Reposted by Dave Lester
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...
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 ...
www.swift.org
September 24, 2025 at 12:41 AM
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...
Two weeks until @serversideswift.info at the Science Museum in London! Looking forward to joining in-person and connecting with the community. #swiftlang
September 17, 2025 at 4:17 PM
Two weeks until @serversideswift.info at the Science Museum in London! Looking forward to joining in-person and connecting with the community. #swiftlang
Reposted by Dave Lester
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...
⏩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 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 ...
www.swift.org
September 16, 2025 at 5:29 PM
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...
⏩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...
Reposted by Dave Lester
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 🙏
Last year was a lot of fun, and I can't wait to see y'all in person again 🙏
September 15, 2025 at 6:09 PM
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 🙏
Last year was a lot of fun, and I can't wait to see y'all in person again 🙏
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 - 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…
www.papercall.io
June 27, 2025 at 9:10 PM
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
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
[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…
forums.swift.org
June 23, 2025 at 4:21 PM
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
Reposted by Dave Lester
#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
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
June 16, 2025 at 9:46 AM
#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
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
Reposted by Dave Lester
Reposted by Dave Lester
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...
June 3, 2025 at 12:47 AM
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...
Reposted by Dave Lester
“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...
🧪 🧠 👁️
#scicomm
#neuroskyence
www.sciencealert.com/experimental...
🧪 🧠 👁️
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...
www.sciencealert.com
May 3, 2025 at 12:50 AM
“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...
🧪 🧠 👁️
#scicomm
#neuroskyence
www.sciencealert.com/experimental...
🧪 🧠 👁️
Sunday morning vibe: Alt-J (2012 tiny desk concert) www.youtube.com/watch?v=xKdp...
Alt-J: NPR Music Tiny Desk Concert
YouTube video by NPR Music
www.youtube.com
April 27, 2025 at 3:53 PM
Sunday morning vibe: Alt-J (2012 tiny desk concert) www.youtube.com/watch?v=xKdp...
Saw Jake Xerxes Fussell in concert tonight in Novato! Great show.
April 5, 2025 at 5:21 AM
Saw Jake Xerxes Fussell in concert tonight in Novato! Great show.
Reposted by Dave Lester
📰 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!
March 31, 2025 at 9:20 PM
📰 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!
Reposted by Dave Lester
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...
March 26, 2025 at 11:38 PM
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...
Reposted by Dave Lester
Swift 6.2 Release process announced: forums.swift.org/t/swift-6-2-... #swiftlang
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...
forums.swift.org
March 8, 2025 at 12:06 AM
Swift 6.2 Release process announced: forums.swift.org/t/swift-6-2-... #swiftlang
Thrilled to have rejoined Apple as a Senior Product Manager for Swift!
March 6, 2025 at 1:34 AM
Thrilled to have rejoined Apple as a Senior Product Manager for Swift!
The new NixOS Foundation Board has been announced discourse.nixos.org/t/announcing... #noxos #opensource
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 ...
discourse.nixos.org
March 4, 2025 at 5:38 PM
The new NixOS Foundation Board has been announced discourse.nixos.org/t/announcing... #noxos #opensource