KAkacesensitive·May 27, 2025
In Letter to Arc Members 2025pointfreeco
swift-composable-architecture
Swift2020–2025
pointfreeco / swift-composable-architecture
swift-composable-architecture
A library for building applications in a consistent and understandable way, with composition, testing, and ergonomics in mind.
5Distinct people
5Mentions
0Explicit recommenders
15KGitHub stars
What to know before exploring
What it is
A library for building applications in a consistent and understandable way, with composition, testing, and ergonomics in mind.
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
No recommendation phrase was found in the indexed comments.
No classified warning is attached to this page. Read the discussions before treating silence as approval.
Also in these discussions
No other repository is repeatedly linked in the same discussions.
This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.
No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.
Mentions over time
HN mentions by year5 dated mentions
Observed mentions: 2020-05-04 16:40:19 UTC to 2025-05-27 04:16:27 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2020 | 2020-01-01 00:00:00 UTC | 2021-01-01 00:00:00 UTC | 1 | 1 | 0 |
| 2021 | 2021-01-01 00:00:00 UTC | 2022-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2022 | 2022-01-01 00:00:00 UTC | 2023-01-01 00:00:00 UTC | 3 | 0 | 3 |
| 2023 | 2023-01-01 00:00:00 UTC | 2024-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2024 | 2024-01-01 00:00:00 UTC | 2025-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2025 | 2025-01-01 00:00:00 UTC | 2026-01-01 00:00:00 UTC | 1 | 0 | 1 |
What Hacker News says
5 sourcesIf you're interested in SwiftUI and care about feature composability, decent test coverage, dependency injection, isolated side effects, functional core and being able to use live previews properly, take a look at: https://github.com/pointfreeco/swift-composable-architecture
Been using it at work for a moderately complex app (not a toy app by any means) and it's been fantastic. We're 7 months in and haven't hit any gotchas, but the learning curve can be a bit steep, especially for more junior iOS devs.
Helps that they have a full video series taking you through the library and how they built it: https://www.pointfree.co/collections/composable-architecture
In SwiftUI for Mac 2022One point that's not being discussed enough -- using SwiftUI (since it's heavily value-typed / struct-based) prevents a whole host of problems around retain cycles, typically the bugbear of iOS dev. I recently built an iOS app from scratch with recent grads with zero Swift experience (but had done React).
It was ~2mo before they even had to learn what a retain cycle was, and that was from using UIKit.
Of course you still eventually see this if / when you use `@ObservedObjects` and their implementation, but in our case we were also using https://github.com/pointfreeco/swift-composable-architecture which hides this away as well.
In SwiftUI in 2022[Books by Objc.io](https://www.objc.io/books/) are great. Also whilst not a book, [Composable Architecture](https://github.com/pointfreeco/swift-composable-architecture) seems like a nice way to develop cross platform (iOS/macOS) apps.
In Ask HN: Book Recommendation for macOS DevelopmentComposable Architecture – Swift with composition, testing and ergonomics in mind
6 points · Open discussion