Simple example on how to do initial configuration/setup for different modules in an app on app startup.

AppModuleEnvironmentConfiguration.swift

//
//  AppModuleEnvironmentConfiguration.swift
//

import SwiftUI

// MARK: AppDelegate

final class AppDelegate: NSObject, UIApplicationDelegate {
    func application(
        _ application: UIApplication,
        willFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil
    ) -> Bool {
        let moduleOneConfiguration = ModuleOneEnvironment.Configuration(
            appName: AppEnvironment.shared.bundleDisplayName,
            appVersion: AppEnvironment.shared.bundleVersion,
            appBuildNumber: AppEnvironment.shared.bundleShortVersionString,
            baseURL: URL(string: AppEnvironment.value(for: "ModuleOneBaseURL"))!
        )
        ModuleOneEnvironment.shared.update(basedOn: moduleOneConfiguration)

        let moduleTwoConfiguration = ModuleTwoEnvironment.Configuration(
            appName: AppEnvironment.shared.bundleDisplayName,
            appVersion: AppEnvironment.shared.bundleVersion,
            appBuildNumber: AppEnvironment.shared.bundleShortVersionString,
            baseURL: URL(string: AppEnvironment.value(for: "ModuleOneBaseURL"))!
        )
        ModuleTwoEnvironment.shared.update(basedOn: moduleTwoConfiguration)

        return true
    }

    func application(
        _ application: UIApplication,
        didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil
    ) -> Bool {

        return true
    }
}

// MARK: Main Target

public final class AppEnvironment: Sendable {
    public static func value<Value>(for key: String) -> Value {
        guard
            let value = Bundle.main.infoDictionary?[key] as? Value
        else {
            fatalError("Missing value for \(key) in Info.plist")
        }
        return value
    }

    public static let shared: AppEnvironment = AppEnvironment()

    public let bundleDisplayName: String
    public let bundleVersion: String
    public let bundleShortVersionString: String

    public init() {
        bundleDisplayName = Self.value(for: "CFBundleDisplayName")
        bundleVersion = Self.value(for: "CFBundleVersion")
        bundleShortVersionString = Self.value(for: "CFBundleShortVersionString")
    }
}

// MARK: Module One

public final class ModuleOneEnvironment: Sendable {
    public struct Configuration {
        public let appName: String
        public let appVersion: String
        public let appBuildNumber: String
        public let baseURL: URL
    }

    public static let shared: ModuleOneEnvironment = ModuleOneEnvironment()

    nonisolated(unsafe) public private(set) var appName: String = ""
    nonisolated(unsafe) public private(set) var appVersion: String = "0.0.0"
    nonisolated(unsafe) public private(set) var appBuildNumber: String = "0000"
    nonisolated(unsafe) public private(set) var baseURL: URL = URL(string: "https://localhost")!

    public func update(basedOn configuration: Configuration) {
        appName = configuration.appName
        appVersion = configuration.appVersion
        appBuildNumber = configuration.appBuildNumber
        baseURL = configuration.baseURL
    }
}

extension URL {
    var moduleOneBaseURL: URL {
        ModuleOneEnvironment.shared.baseURL
    }
}

// MARK: Module Two

public final class ModuleTwoEnvironment: Sendable {
    public struct Configuration {
        public let appName: String
        public let appVersion: String
        public let appBuildNumber: String
        public let baseURL: URL
    }

    public static let shared: ModuleTwoEnvironment = ModuleTwoEnvironment()

    nonisolated(unsafe) public private(set) var appName: String = ""
    nonisolated(unsafe) public private(set) var appVersion: String = "0.0.0"
    nonisolated(unsafe) public private(set) var appBuildNumber: String = "0000"
    nonisolated(unsafe) public private(set) var baseURL: URL = URL(string: "https://localhost")!

    public func update(basedOn configuration: Configuration) {
        appName = configuration.appName
        appVersion = configuration.appVersion
        appBuildNumber = configuration.appBuildNumber
        baseURL = configuration.baseURL
    }
}

extension URL {
    var moduleTwoBaseURL: URL {
        ModuleTwoEnvironment.shared.baseURL
    }
}