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---
title: What Swift Build means for the Swift ecosystem | daily.dev
description: Apple's newly announced Swift Build unifies the build systems and in-memory project graphs used by SwiftPM and Xcode, which previously operated as two...
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og:title: What Swift Build means for the Swift ecosystem | daily.dev
og:description: Apple's newly announced Swift Build unifies the build systems and in-memory project graphs used by SwiftPM and Xcode, which previously operated as two...
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# What Swift Build means for the Swift ecosystem

**[
      Tuist
    ](https://daily.dev/sources/tuist-blog)** · 7 min read · 0 upvotes · 0 comments

## Summary

Apple's newly announced Swift Build unifies the build systems and in-memory project graphs used by SwiftPM and Xcode, which previously operated as two separate, overlapping systems. This is expected to speed up feature rollout, improve reliability (build determinism, SwiftUI previews), enable extensibility for new platforms, unlock Bazel-like build optimizations via Content Addressable Storage, and provide a foundation for new coding experiences. Tuist's founder shares his perspective on the significance of this open-sourcing move, how it reduces the reverse-engineering work Tuist has historically had to do, and speculates on whether Xcode projects and Swift packages will eventually converge into a single format, possibly via a new DSL similar to Gradle's Kotlin DSL or the PKL language.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://tuist.dev/blog/2025/02/03/swift-build>

## Questions this post answers

### What is Swift Build and how does it change the relationship between Xcode and SwiftPM?

Swift Build is Apple's newly announced unification of the build system and in-memory project graph previously duplicated between xcodebuild and Swift Package Manager. Instead of two separate graphs, one generic and one Apple-platform-specific, both tools now share a single build system layer, with Xcode projects and Swift packages converted into a Project Interchange Format before being passed to it.

_Developers tracking Apple toolchain changes can follow Swift Build's rollout and impact on daily.dev._

### Why did Apple historically have both xcodebuild and SwiftPM as separate build systems for Swift?

Apple maintained two build systems because Swift was designed to run everywhere, not just on Apple platforms, creating a duality between a generic cross-platform graph and one tightly coupled to Xcode and Apple operating systems. This led to duplicated engineering effort and features that were unreliable, missing, or slow across the two systems for years.

_daily.dev helps developers weighing Xcode versus SwiftPM workflows stay current on toolchain shifts._

### What developer experience improvements are expected from unifying Xcode and SwiftPM under one build system?

Expected improvements include faster rollout of new features since they need to be implemented only once, increased reliability for things like build determinism and SwiftUI previews, easier extensibility for new build destinations such as WebAssembly, and build-time optimizations similar to Bazel enabled by explicit modules and content-addressable storage already present in the codebase.

_daily.dev keeps developers evaluating Apple toolchain upgrades informed on what changes to expect._

## Similar posts on daily.dev

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      Tuist
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---

Tags: [#swift](https://daily.dev/tags/swift), [#xcode](https://daily.dev/tags/xcode), [#build-systems](https://daily.dev/tags/build-systems)

[View this post on daily.dev](https://daily.dev/posts/what-swift-build-means-for-the-swift-ecosystem-bdeiggwhz)

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