How do several widgets live in one extension, and what is a widget’s kind used for?

Predict first

Does a bundle of 16 widgets compile?

import WidgetKit
import SwiftUI

struct E: TimelineEntry { let date: Date }
struct P: TimelineProvider {
    func placeholder(in context: Context) -> E { E(date: .now) }
    func getSnapshot(in context: Context, completion: @escaping (E) -> Void) { completion(E(date: .now)) }
    func getTimeline(in context: Context, completion: @escaping (Timeline<E>) -> Void) {
        completion(Timeline(entries: [E(date: .now)], policy: .never))
    }
}
struct W1: Widget { var body: some WidgetConfiguration { StaticConfiguration(kind: "w1", provider: P()) { _ in Text("1") } } }
struct W2: Widget { var body: some WidgetConfiguration { StaticConfiguration(kind: "w2", provider: P()) { _ in Text("2") } } }

@main struct Bundle16: WidgetBundle {
    var body: some Widget {
        W1(); W2(); W1(); W2(); W1(); W2(); W1(); W2()
        W1(); W2(); W1(); W2(); W1(); W2(); W1(); W2()
    }
}

• Yes, it compiles
• No: a bundle is limited to a handful of widgets
• No: @main is not allowed on a bundle