I think its an app clip?

MacOS 26 replaced launchpad with spotlight, your installed apps can be accessed by pressing cmd+space and then cmd+1.

I found the solution was to add var id = UUID() to the model definition so the final result would look something like: @Model final class Character { var id = UUID() var name: String var production: Production? var myCharacter: Bool init(name: String, production: Production?, myCharacter: Bool = false) { self.name = name self.production = production self.myCharacter = myCharacter } } @Model final class Production { var id = UUID() var name: String @Relationship(deleteRule: .cascade, inverse: \Act.production) var acts: [Act] = [] init(name: String) { self.name = name } }

I was missing the { from ToolbarItem var body: some View { NavigationStack { Text("Home") .toolbar { ToolbarItem(placement: .navigationBarLeading) { NavigationLink { AccountView() } label: { Image(systemName: "gearshape") } } } } }