facet_appkit

The macOS AppKit backend for facet: native mounting, input, layout sync, services, and window integration.

Use cpc pm add . facet_appkit --platform macos so the consuming manifest gets the full macOS dependency closure. Applications normally import the runtime, not this backend directly; App::run installs it:

[dependencies]
facet         = "*"
facet_runtime = "*"

[macos.dependencies]
facet_appkit = "*"

import "facet_runtime/runtime" as runtime;
import "facet/screen" as screen;

fn main() -> i32 {
    let app = runtime::App::new("hello");
    app.window("main", main_screen,
               chrome: screen::Chrome::new(title: "Hello"));
    if app.run("main").is_ok() { return 0; }
    return 1;
}

• Tutorial — declare and run a macOS facet app
• Guide — mounting, sync, ownership, and AppKit constraints
• Reference — installed seams and backend surface
• Backend manifest — disposition of every facet contract verb

Run unit tests from this directory with cpc test. The suite includes the backend seam and leak harness; visual behavior still needs a real app window.