Swift is more than just a language for building apps. In this talk, we will explore the Swift ecosystem including the compiler, the package manager, and the community-driven tools that make Swift development productive and enjoyable. We will look at how these tools work together and how you can contribute to the ecosystem.

Sho Ikeda

Syo Ikeda is an iOS developer at Realm, known for his contributions to open source projects including Himotoki, Carthage, and ReactiveSwift. He is passionate about the Swift ecosystem and developer tooling.

@ikesyo

Swift is now open source and runs on Linux. In this talk, we will explore practical techniques for writing Swift code that runs on both Apple platforms and Linux, covering the challenges and solutions for building cross-platform libraries and tools with Swift.

JP Simard

JP Simard is an iOS developer at Realm, where he works on the Realm Mobile Database and related tooling. He is the creator of SourceKitten and a core contributor to SwiftLint. He is passionate about developer tools and open source.

@simjp

Reading code is a skill that developers use every day, yet we rarely talk about how to do it well. In this talk, we will explore techniques for reading and understanding unfamiliar codebases, drawing parallels to how we learn human languages and how those same strategies can make us better code readers.

Laura Savino

Laura Savino is an iOS developer and linguist who builds language learning tools. She brings her background in linguistics to software development, exploring the parallels between human languages and programming languages.

@savinola

Apple TV and tvOS open up new possibilities for Swift developers. In this talk, we will explore the tvOS SDK, discuss the unique challenges of developing for the big screen, and demonstrate how to build engaging apps and games for Apple TV using Swift.

Boris Bugling

Boris Bugling is a Cocoa developer at Contentful and a prolific contributor to the CocoaPods ecosystem. He enjoys building tools and exploring new Apple platforms.

@NeoNacho

Protocols with associated types are powerful, but they come with limitations. In this talk, we will explore the concept of type erasure in Swift, why it is needed, and how to implement it to work around the constraints of protocols with associated types.

Gwendolyn Weston

Gwendolyn Weston is an iOS developer who enjoys exploring Swift’s type system and pushing the boundaries of protocol-oriented programming.

@purpleyay

Error handling is a crucial part of writing robust Swift code. In this talk, we will explore three different approaches to error handling in Swift, examining the trade-offs between Optional, Result types, and Swift’s native error handling mechanism using throws.

Yuta Koshizawa

Yuta Koshizawa (@koher) is a Swift developer who is passionate about type safety and functional programming concepts in Swift. He has written extensively about error handling patterns in Swift.

@koher

Protocols are at the heart of Swift’s design philosophy. In this talk, we will explore how to leverage protocols effectively, examining real-world patterns for protocol-oriented programming and how they can lead to cleaner, more maintainable code architectures.

Michele Titolo

Michele Titolo is a lead iOS engineer at Capital One, known for her expertise in Swift protocols and software architecture. She is a frequent conference speaker and advocate for clean code practices.

@micheletitolo

As Swift developers, we come from many different programming backgrounds. In this talk, we will explore how ideas from functional programming, object-oriented programming, and other paradigms blend together in Swift, and how embracing this cultural diversity makes us better programmers.

Daniel Steinberg

Daniel Steinberg (@dimsumthinking) is an author, trainer, and speaker who has been writing about Cocoa and Swift for many years. He is the author of several books on Swift and iOS development and is known for his engaging teaching style.

@dimsumthinking

Core Animation is a powerful framework that goes far beyond simple view animations. In this talk, we will explore advanced techniques for creating stunning graphics and animations using Core Animation layers, including custom drawing, 3D transforms, and particle effects.

Tim Oliver

Tim Oliver is an iOS developer at Realm, and a prolific open-source contributor. Originally from Perth, Australia, he moved to Tokyo where he has been building iOS apps and contributing to the community.

@TimOliverAU

The smart home revolution is here, and Swift developers are uniquely positioned to build the next generation of home automation apps. In this talk, we will explore HomeKit and other frameworks for controlling smart home devices, and discuss the challenges and opportunities in this growing field.

Stephanie Shupe

Stephanie Shupe is an iOS developer focused on smart home technology. She is passionate about the intersection of software and hardware, building apps that connect the digital and physical worlds.

@stloyal

What does it mean to be invisible in the tech industry? In this talk, we will explore the challenges of underrepresented groups in technology, discuss strategies for building inclusive teams, and examine how engineering leaders can create environments where everyone can thrive.

Cate Huston

Cate Huston is an engineering leader at Automattic. She has lived and worked in the UK, Australia, Canada, China, and the United States. She is passionate about engineering leadership, diversity, and inclusion in the tech industry.

@catehstn

Setting boundaries in your codebase is essential for maintainability and scalability. In this talk, we will explore practical techniques for defining clear boundaries between modules, layers, and components in Swift applications, with a focus on real-world patterns from production apps.

Ayaka Nonaka

Ayaka Nonaka is an iOS engineer at Venmo, where she works on internationalization and localization. She is passionate about making apps accessible to users around the world and is known for her expertise in Swift localization patterns.

@ayanonagon

Prototyping is a powerful way to explore ideas and validate designs before committing to a full implementation. In this talk, we will explore how to use Swift and iOS frameworks to quickly build interactive prototypes with fluid animations and delightful interactions that feel like magic.

Adam Bell

Adam Bell is a software engineer at Facebook, where he works on animation and prototyping tools. He is known for his creative approach to interactive animations and has contributed to popular open-source animation libraries.

@b3ll

Protocol extensions were a game-changing addition to Swift. In this talk, we will trace the history of protocol extensions, from their conceptual origins in other languages to their implementation in Swift, and explore how they have transformed the way we write Swift code.

Matthew Gillingham

Matthew Gillingham is a Tokyo-based iOS developer with a deep interest in the history and evolution of programming languages. He enjoys exploring how language features influence software design patterns.

@gillygize

Building a thriving developer community takes dedication and passion. In this talk, we will share the story of growing Women Who Code in Tokyo, discussing the challenges and rewards of organizing events, fostering diversity, and creating an inclusive space for women in technology.

Himi Sato

Himi Sato is the lead organizer of Women Who Code Tokyo, dedicated to building a supportive community for women in technology in Tokyo. She is passionate about diversity and inclusion in the tech industry.

@himisato

Good API design is like good product design – it should be intuitive, discoverable, and a joy to use. In this talk, we will explore principles of good API design in Swift, drawing inspiration from Don Norman’s ‘The Design of Everyday Things’ and applying those principles to create APIs that are easy to use correctly and hard to use incorrectly.

Rachel Bobbins

Rachel Bobbins is a lead iOS engineer at Stitch Fix, where she builds delightful shopping experiences. She is passionate about clean Swift API design and creating intuitive developer interfaces.

@bobbins

Core Data has evolved significantly over the years. In this talk, we will explore modern best practices for using Core Data in Swift, including the latest APIs, concurrency patterns, and architectural approaches that make Core Data a joy to work with in modern iOS applications.

Daniel Eggert

Daniel Eggert is a co-founder of objc.io and a Core Data expert. He has been working with Core Data since its inception and has contributed extensively to the iOS developer community through writing and speaking.

@danielboedewadt

LLDB integrates the Swift compiler to provide a rich debugging experience. In this talk, we will explore how the Swift compiler is embedded within LLDB, how expression evaluation works, and what this means for debugging Swift code at a deeper level.

Novall Khan

Novall Khan is a software engineer at Splitwise with expertise in LLDB and compiler internals. She enjoys diving deep into debugging tools and sharing her knowledge of how Swift’s debugger works under the hood.

@novaborosky

Building a great Swift library involves more than just writing code. In this talk, we will cover the full lifecycle of creating and maintaining a Swift library, from API design and testing strategies to documentation, versioning, and community management, drawing from experience with Quick and Nimble.

Jeff Hui

Jeff Hui is a maintainer of Quick and Nimble, popular testing frameworks for Swift and Objective-C. He is passionate about testing practices and building developer tools that make it easier to write reliable software.

@jeffhui

Networking code is often messy and hard to maintain. In this talk, we will explore how protocol-oriented programming can transform the way we write networking code in Swift, using protocols and associated types to build type-safe, composable API clients, as demonstrated by the APIKit library.

Yosuke Ishikawa

Yosuke Ishikawa is an iOS engineer at Mercari and the author of APIKit, a type-safe networking library for Swift. He is passionate about protocol-oriented programming and building elegant API abstractions.

@_ishkawa

Design and development don’t have to be separate processes. In this talk, we will explore techniques for live designing in Swift, bridging the gap between designers and developers by creating interactive design tools and workflows that bring designs to life in real time.

Maxim Cramer

Maxim Cramer is a designer and developer at SwiftKey, known for her work bridging the gap between design and development. She specializes in live design techniques and creating tools that bring designs to life interactively.

@mennenia

Table views are fundamental to iOS development, yet they are often overcomplicated. In this talk, we will explore idiomatic patterns for using table view controllers in Swift, focusing on clean data source implementations, reusable cells, and modern approaches to building list-based interfaces.

Chris Eidhof

Chris Eidhof is a co-founder of objc.io and the author of ‘Functional Swift’ and ‘Advanced Swift’. He is known for his contributions to the Swift community through writing, speaking, and building innovative Swift projects.

@chriseidhof