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WWDC24: Go small with Embedded Swift | Apple

Apple Developer · 138K views · 2024-06-11 · 22:17

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Overview

An Apple WWDC24 session introducing Embedded Swift, a subset of Swift with no runtime that targets tiny microcontrollers. It demonstrates the idea on an off-the-shelf Matter smart home device.

On Hacker News

HN cites it as Apple's own explanation of why Embedded Swift exists and what it targets.

Discussed on HN; no positive recommendation is recorded in this export · HN mentions 2024–2025

Topics

Embedded systems & DIY electronicsProgramming language designCompilers, interpreters & program analysis
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swiftmicrocontrollerswwdcmattermemory safety

What people said

pjmlp · 2025-10 · Reference

Not for much longer, replacing it with Swift is one of the reasons why Swift Embedded subset came to be. "Why Embedded Swift" [VIDEO]

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timsneath · 2025-02 · Reference

Of course! Tons of examples here: [LINK] At WWDC24, we shared a session on embedded Swift, which is available on YouTube: [VIDEO] More documentation on embedded Swift tooling here: [LINK] (Disclosure: I work at Apple.)

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jitl · 2025-02 · Reference

Although opinions inside Apple about Swift vary, they seem to be investing in low level Swift for embedded, kernel use, and programming the “Secure Enclave” subsystem. They certainly have many opportunities to use it for headphones, AirTag, flash driver, etc, beyond the very believable but less embedded use in kernel/Secure Enclave. See also the wwdc session where they propose swift for building smart home thingies [VIDEO]

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Sources

Video by Apple Developer, played through YouTube.

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