Creating setting bundles for iOS applications is usually a pain, and involves fiddly .plist files. This becomes difficult for large projects requiring many pages of settings integrated into the system settings app.

To solve this issue, I creates SettingsBundleBuilder which uses a result builder/SwiftUI-style syntax to generate the .plist files for you. This makes it significantly easier to create, read and maintain complex setting bundles, like below:

import SettingsBundleBuilder

makeSettingsBundle {
    Group("Main settings:") {
        TextField("Name", key: "username")
            "Background music",
            key: "background_music",
            defaultValue: "ocean",
            possibleValues: ["ocean", "forest", "city", "cafe", "river"],
            readableVersions: ["Ocean", "Forest", "Bustling city", "Quiet cafe", "Gentle stream"]
        "Color scheme:",
        key: "color_scheme",
        defaultValue: "blue",
        possibleValues: ["blue", "red", "green"],
        readableVersions: ["Blue", "Red", "Green"]
    Group("Info") {
        Text("App name", constantValue: "My app")
        Text("App version", key: "version", defaultValue: "1.0.0")
        Page("Advanced") {
            Toggle("Experimental features", key: "experimental_features", defaultValue: false)
            Slider(key: "opacity", defaultValue: 50.0, min: 0.0, max: 100.0)

You can view this project on GitHub.