There’s a general UTI category for archives. Does an archive type HAVE to compress the file data, or can the data be stored 1:1? I’m asking because some of the descriptions suggest the category is for compressed archives, but my archive type is 1:1.

Glancing through the APIs, SwiftUI can handle the open app, reopen app, open doc, and quit core events (with the “aevt” suite ID). What about the print doc and open content events? If there are no hooks (yet), how can I implement them the traditional way without clashing with SwiftUI?

Should there be separate intents to open each supported file type? Or a single intent, and my code sniffs out the format?

I read some article that said for using Apple Intelligence as an integrated part of an app, instead of tacked on, MVVM and VIPER are not good fits. Would that be accurate? What other architectures could work better? (The author didn’t suggest any replacements.)

This is a successor to: https://developer.apple.com/forums/thread/814231 I went into a slightly different direction. I generated more AI slop that use NSLock. Then I had the NSLock usage changed to Mutex usage. Now it crashes with: Task 13: EXC_BREAKPOINT (code=1, subcode=0x18d29326c) On one of the mutex closures. With an extended description: warning: TypeSystemSwiftTypeRef::operator(): had to engage SwiftASTContext fallback for type $s7Combine10PublishersO21LineBreakingPublisherE11SplitAtZeroV12Subscription33_D18F5AAE73662968F407B0A79FBD1F8DLLCy_x_qd__GD I put the class, a Subscription nested in its corresponding Publisher operator, in the given file Subscription.txt

I tried making a concurrency-safe data queue. It was going well, until memory check tests crashed. It's part of an unadvertised git project. Its location is: https://github.com/CTMacUser/SynchronizedQueue/commit/84a476e8f719506cbd4cc6ef513313e4e489cae3 It's the blocked-off method "`memorySafetyReferenceTypes'" in "SynchronizedQueueTests.swift." Note that the file and its tests were originally AI slop.

I saw this file among my project's check-in: .swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata Does this need to be added to source control? Or the .gitignore file (or equivalent)? Or are there some files within the ".swiftpm" that should be checked in, and others ignored?

This is from an Xcode generated file. var values: [String] = [] let exp = Expectation() let c = pub.filter { $0 != nil }.map { $0! }.sink( The second line gives an error: "'Expectation' cannot be constructed because it has no accessible initializers". My best guess that Expectation objects come from some other Apple Swift Testing function, but I don't know where.

I'm making an operator Publisher, which has to wrap the upstream publisher. But I want the operator to conditionally conform to ConnectablePublisher, but only when the upstream publisher does the same. I can make my connect() call the upstream's connect(), but is that all I have to do? That Apple's plumbing will automatically hold back the initial call to the Subscription object if the publisher is connectable. Otherwise, I need to make a flag in the subscription for when to connect, which would involve an infinitely copyable struct somehow send a message to a unique class/actor. That last part makes sense to me, but it also seems like too much work for something plug-and-play. Having Apple's implementation taking care of that issue also makes sense, and would be a better solution.

We can get informed on object changes through conforming to ObservableObject or having the @Observable macro attached to the type’s definition. How do you handle imported code that assumes the other observation technique?

NSApplicationDelegate.application(_:open:) gets the files it needs to read from the file URLs given. There are similar older functions that use a String to identify the file. What format are those strings expecting? A path name? An URL?

I was looking through: https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/ScriptableCocoaApplications/SApps_handle_AEs/SAppsHandleAEs.html And wondered how these are handled for SwiftUI apps. What would I add or override?

I've heard that when a Mac app implements their version of the Standard AppleEvent suite, the developer can copy "CocoaStandard.sdef" and trim out whatever they don't need. What are the constraints on this trimming? I guess that we could remove commands wholesale, but can we remove sub-parts of a command? Can we change an enumeration? A record type?

Just trying to understand the documentation. Obviously, we can send a request to the service to return all the data at once. Can the data arrive in pieces, involving either multiple async callbacks or a Combine Publisher?

For example, let’s propose an XPC service that can connect to websites. Suppose that I want to connect to Apple.com, microsoft.com, and ibm.com. Can 3 service objects be made between the service and client? Or does the service have to return an ID for each web connection, with the client needing to specify which connection ID along with a command?