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FoundationModels code-along session Q&A (Sep 25, 2025)

Let me just say this format is AMAZINGLY well done, you guys. Is there a schedule somewhere of other "Code Along"s?

Thank you John, much appreciated! This is the only code along so far, but stay tuned to the Meet with Apple schedule for more events: https://developer.apple.com/events/view/upcoming-events

Will the recorded session be provided?

Great question! Yes, the code along will be available on-demand sometime after the event concludes. The code along will be made available on the Apple developer website and Youtube.

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enum APIError: Error, LocalizedError {
    case unknown, apiError(reason: String), parserError(reason: String)

    var errorDescription: String? {
        switch self {
        case .unknown:
            return "Unknown error"
        case .apiError(let reason), .parserError(let reason):
            return reason
        }

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//
//  ContentView.swift
//  Shared
//
//  Created by Costantino Pistagna on 25/03/21.
//

import SwiftUI

struct ContentView: View {

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func validate<T: Codable>(_ validator: @escaping (T) -> Bool) -> (T) -> Bool {
  return { input in
    return validator(input)
  }
}

enum StringValidator: CustomStringConvertible {
    case isNotEmpty
    case lengthIn(ClosedRange<Int>)
    

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function prompt_char {
	if [ $UID -eq 0 ]; then echo "#"; else echo $; fi
}

PROMPT='%(!.%{$fg_bold[red]%}.%{$fg_bold[cyan]%}%n@)%m:%{$fg_bold[green]%}%(!.%~.%1~)%{$fg_bold[yellow]%} $(git_prompt_info)%{$fg_bold[cyan]%}$(prompt_char)%{$reset_color%} '

ZSH_THEME_GIT_PROMPT_PREFIX="("
ZSH_THEME_GIT_PROMPT_SUFFIX=") "

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import Foundation
import Combine

enum APIError: Error, LocalizedError {
    case unknownError
    case unknownURL
    case unknownData
    case parserError(reason: String)
    case apiError(reason: String)

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import Foundation
import Combine

enum APIError: Error, LocalizedError {
    case unknown, apiError(reason: String), parserError(reason: String)

    var errorDescription: String? {
        switch self {
        case .unknown:
            return "Unknown error"

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import Foundation
import Combine

enum APIError: Error, LocalizedError {
    case unknown, apiError(reason: String)

    var errorDescription: String? {
        switch self {
        case .unknown:
            return "Unknown error"

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extension View {
    func iff(_ condition: Bool, _ modifier: (Self) -> AnyView) -> AnyView {
        if condition {
            return modifier(self).eraseToAnyView()
        }
        return eraseToAnyView()
    }
    
    func some<Value>(_ optional: Value?, modifier: (Value, Self) -> AnyView) -> some View {
        guard let value = optional else {

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import UIKit

extension UIImage {
  /**
   Resizes the image to width x height and converts it to an RGB CVPixelBuffer.
  */
  public func pixelBuffer(width: Int, height: Int) -> CVPixelBuffer? {
    var maybePixelBuffer: CVPixelBuffer?
    let attrs = [kCVPixelBufferCGImageCompatibilityKey: kCFBooleanTrue,
                 kCVPixelBufferCGBitmapContextCompatibilityKey: kCFBooleanTrue]