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05:5505:55, 13 January 2026 TypeScript 5.9 Study Guide (for JavaScript, Node.js, and React developers) (hist | edit) [31,781 bytes] Ryan (talk | contribs) (Created page with " = TypeScript 5.9 Study Guide (for JavaScript, Node.js, and React developers) = '''Last verified:''' 2026-01-13 '''Latest stable release line shown on the TypeScript site:''' '''TypeScript 5.9''' ([https://www.typescriptlang.org/ TypeScript]) '''Latest patch listed on GitHub releases:''' '''5.9.3''' ([https://github.com/Microsoft/TypeScript/releases GitHub]) '''TypeScript 5.9 announ...")
01:4901:49, 13 January 2026 Full MUI AppShell (React 19 + MUI v7) — Complete Example (hist | edit) [24,838 bytes] Ryan (talk | contribs) (Created page with " = Full MUI AppShell (React 19 + MUI v7) — Complete Example = This document walks you from '''zero → running app''' with a production-grade '''AppShell''': * '''Fixed AppBar''' (top) * '''Responsive Drawer navigation''' ** <code>temporary</code> Drawer on small screens (hamburger menu) ** <code>permanent</code> Drawer on desktop * '''Route-based content area''' (React Router) * '''Light/Dark/Syste...")

07:2507:25, 7 January 2026 Diffable Data Sources in UIKit (UITableView + UICollectionView) — Modern Swift (2026) (hist | edit) [39,369 bytes] Ryan (talk | contribs) (Created page with " = Diffable Data Sources in UIKit (UITableView + UICollectionView) — Modern Swift (2026) = Diffable Data Sources let you drive <code>UITableView</code> and <code>UICollectionView</code> from ''snapshots'' (a declarative “this is what the UI should show right now” state) instead of manually coordinating <code>insertRows</code>, <code>deleteItems</code>, <code>performBatc...")

04:2504:25, 1 January 2026 System-Style SwiftUI Views Cheat Sheet (hist | edit) [12,263 bytes] Ryan (talk | contribs) (Created page with " = System-Style SwiftUI Views Cheat Sheet = This document focuses on '''ready-made, opinionated system views''' you can drop in to get platform‑native UI with minimal code — similar in spirit to <code>ContentUnavailableView</code>. ----- == 1. <code>ContentUnavailableView</code> – Empty & Error States == '''Availability:''' iOS 17+, macOS...")
03:5603:56, 1 January 2026 FileManager.SearchPathDirectory (Swift / Foundation) (hist | edit) [10,422 bytes] Ryan (talk | contribs) (Created page with " = <code>FileManager.SearchPathDirectory</code> (Swift / Foundation) = <code>FileManager.SearchPathDirectory</code> is an enum that identifies “well-known” directory locations. You typically use it with: * <code>FileManager.default.urls(for:in:)</code> to ''locate'' common directories. :contentReferenceoaicite:0 * <code>FileManager.default.url(for:in:appropriateFor:crea...")

15:0315:03, 31 December 2025 Firebase for Your iOS App (with a Python/FastAPI Backend) (hist | edit) [21,773 bytes] Ryan (talk | contribs) (Created page with " = Firebase for Your iOS App (with a Python/FastAPI Backend) = This document gives you a practical, end‑to‑end overview of using '''Firebase as the backend''' for an iOS app, with special focus on: * Creating a '''login system''' using Firebase Authentication * Storing and using '''many user‑generated files''' * Using a '''Python (FastAPI) backend''' together with Firebase ----- <span id=...")
09:1709:17, 31 December 2025 Extracting Only the Audio from a Video on iOS (Swift) (hist | edit) [9,653 bytes] Ryan (talk | contribs) (Created page with " = How to Extract Only the Audio from a Video on iOS = This guide shows you '''how to turn a video into an audio file (like .m4a)''' directly on your iPhone or iPad. You’ll learn: # How to do it '''using only built‑in iOS apps''' (Shortcuts + Files) # (Optional) How to do it with a '''third‑party app''' from the App Store ----- </span...") originally created as "How to Extract Only the Audio from a Video on iOS"
08:5708:57, 31 December 2025 Single end-to-end iOS Swift example (Firebase ID token → presign → S3 PUT → Firestore doc) (hist | edit) [11,069 bytes] Ryan (talk | contribs) (Created page with " == Single end-to-end iOS Swift example (Firebase ID token → presign → S3 PUT → Firestore doc) == This example does exactly these steps: # '''Get Firebase ID token''' from the currently signed-in user # '''Call your FastAPI''' <code>POST /v1/uploads/presign</code> with <code>Authorization: Bearer <token></code> # '''Upload bytes to S3''' with <code>URLSessio...")
08:5508:55, 31 December 2025 Fully integrated: Dockerized FastAPI + Firebase Auth + Firestore + S3 (Cloud Run '''or''' ECS/Fargate) (hist | edit) [21,517 bytes] Ryan (talk | contribs) (Created page with " === What “fully integrated” means here === You’ll have: * '''iOS app''' using '''Firebase Authentication''' for login. * A '''Python (FastAPI) backend''' that: ** verifies Firebase '''ID tokens''' (so every request is tied to a real user) ** reads/writes '''Firestore''' (your “source of truth” for app data) ** issues '''S3 presigned URLs''' (so the app uploads/downloads files ''directly'' to/from S3 without...")
08:5308:53, 31 December 2025 Deep dives and “my preferred way to implement it (hist | edit) [28,408 bytes] Ryan (talk | contribs) (Created page with " = End-to-end design: Firebase Auth + Firestore metadata + S3 file bytes + FastAPI = This is the pattern I recommend when you want to keep Firebase as your identity + app-data layer, but you already have S3 or you want AWS-native file pipelines. The core building block is '''S3 presigned URLs''': they grant '''time-limited''' upload/download access to a specific object without g...")
08:5108:51, 31 December 2025 Opinionated add-ons: how I’d build this in the real world (hist | edit) [13,486 bytes] Ryan (talk | contribs) (Created page with " = 1) My default architecture recommendation = If your goal is to ship a solid iOS app quickly and keep complexity low: === My “default stack” === * '''Firebase Auth''' for identity * '''Cloud Firestore''' for app data * '''Firebase Storage''' for files ''unless you already have S3 or must be on AWS'' * '''Cloud Functions''' for small server-side glue * '''FastAPI''' only...")
08:4108:41, 31 December 2025 Firebase for an iOS App Backend (with Auth, AWS S3 files, and an optional Python/FastAPI API) (hist | edit) [21,163 bytes] Ryan (talk | contribs) (Created page with " = Firebase for an iOS App Backend (with Auth, AWS S3 files, and an optional Python/FastAPI API) = This document explains how to use '''Firebase''' as the backend for an '''iOS (Swift/SwiftUI) app''', how to build a '''login system with Firebase Authentication''', how to work with '''files stored in AWS S3''', and how to add a '''Python backend (e.g., FastAPI)''' a...")

03:5603:56, 21 December 2025 AWS Elastic Beanstalk (EB) — Practical Guide for Deploying Python APIs (FastAPI included) (hist | edit) [17,294 bytes] Ryan (talk | contribs) (Created page with " = AWS Elastic Beanstalk (EB) — Practical Guide for Deploying Python APIs (FastAPI included) = == What Elastic Beanstalk is == AWS Elastic Beanstalk is a managed service that helps you '''deploy, run, and scale''' applications on AWS by handling a lot of the “glue work” (provisioning, configuration, health monitoring,...")

05:1605:16, 15 December 2025 Apple Developer “Identifiers” and App Groups (for iOS devs) (hist | edit) [14,525 bytes] Ryan (talk | contribs) (Created page with " == Apple Developer “Identifiers” and App Groups (for iOS devs) == This is a practical overview of what '''Identifiers''' are in the Apple Developer portal and, in particular, '''what App Groups are and why you need them'''. ----- == 1. Where “Identifiers” fit in (big picture) == On developer.apple.com, under '''Certificates, Iden...")

10:2110:21, 21 November 2025 A Practical Guide to 'nonisolated' in Swift Concurrency (hist | edit) [14,095 bytes] Ryan (talk | contribs) (Created page with " = A Practical Guide to <code>nonisolated</code> in Swift Concurrency = Swift’s concurrency model leans heavily on ''isolation''—especially '''actor isolation'''—to prevent data races. The <code>nonisolated</code> modifier is a precision tool that lets you selectively ''opt out'' of that isolation for specific members, so you can call them without hopping to the actor’s executor (and thus wi...")

06:4906:49, 16 November 2025 Swift "@resultBuilder" — A Comprehensive Guide With Many Examples (2025) (hist | edit) [16,979 bytes] Ryan (talk | contribs) (Created page with " = Swift <code>@resultBuilder</code> — a comprehensive guide (2025) = <blockquote>A practical, copy‑pasteable handbook to designing, implementing, and using result builders to create expressive DSLs. </blockquote> ----- == 0) TL;DR == * <code>@resultBuilder</code> lets you '''turn a multi‑statement closure into a single value''' at compile time. * You write a builder type (...") originally created as "Swift "@result Builder" — A Comprehensive Guide With Many Examples (2025)"
06:0706:07, 16 November 2025 SwiftUI "@ViewBuilder" — a comprehensive guide (2025) (hist | edit) [20,661 bytes] Ryan (talk | contribs) (Created page with " = SwiftUI <code>@ViewBuilder</code> — a comprehensive guide (2025) = <blockquote>Learn the mental model, API surface, best practices, and pitfalls of <code>@ViewBuilder</code> with many copy‑pasteable examples. </blockquote> ----- == TL;DR == * <code>@ViewBuilder</code> is SwiftUI’s '''result builder''' for producing <code>View</code> hierarchies from declarative, multi‑...")

15:3315:33, 13 November 2025 Swift Macros in 2025: A Practical Guide (hist | edit) [19,799 bytes] Ryan (talk | contribs) (Created page with " = Swift Macros in 2025: A Practical Guide = <blockquote>Updated for '''Swift 6.2''' (released Sep 15, 2025). If you’re on Swift 5.9+ the fundamentals are the same; Swift 6.x added polish and tooling, not a new macro model. ([https://www.swift.org/blog/swift-6.2-released/?utm_source=chatgpt.com Swift.org]) </blockquote> ----- == Table of contents == * #1-what-are-macros-...")
13:1813:18, 13 November 2025 Unified Logging System (ULS) for Swift Developers — A Production‑Grade Guide (iOS & macOS) (hist | edit) [31,309 bytes] Ryan (talk | contribs) (Created page with " = 🧰 Unified Logging System (ULS) for Swift Developers — A Production‑Grade Guide (iOS & macOS) = <blockquote>'''Scope:''' This guide focuses on Apple’s '''modern Swift <code>Logger</code> API''' in the <code>OSLog</code> framework. We’ll cover structured logging, signposts for performance, privacy, Console/Xcode/CLI workflows, plus integration patterns for...")

03:5903:59, 5 November 2025 Swift Logging for iOS & macOS — A Practical Guide (hist | edit) [24,362 bytes] Ryan (talk | contribs) (Created page with " = Swift Logging for iOS & macOS — A Practical Guide = <blockquote>'''TL;DR (recommendations)''' * Use Apple’s '''unified logging''' (<code>Logger</code> from <code>OSLog</code>) for app diagnostics. Prefer level‑appropriate calls (<code>.debug</code>, <code>.info</code>, <code>.notice</code>, <code>.error</code>, <code>.fault</code>). ([https://developer.apple.com/documentation/os/logging?utm_so...")

08:1308:13, 4 November 2025 Diagnosing Performance Issues in iOS Apps (hist | edit) [27,267 bytes] Ryan (talk | contribs) (Created page with " = Diagnosing Performance Issues in iOS Apps = === 1) Introduction === Great performance directly affects '''user satisfaction''', '''retention''', '''ratings''', and even '''App Store success'''. Apple’s tooling makes it possible to quantify performance, catch regressions, and turn “it feels slow” into actionable timelines and call trees. Apple’s guidance also emphasize...")

07:2707:27, 1 November 2025 Swift + Xcode Library: Build, Document & Share (Step-by-Step) (hist | edit) [12,935 bytes] Ryan (talk | contribs) (Created page with " = Swift + Xcode Library: Build, Document & Share (Step-by-Step) = == What you’ll build == * A Swift '''package''' (the standard way to make libraries). * It works in Xcode (iOS, macOS, tvOS, watchOS). * It has tests, documentation, CI (optional), and versioned releases. * You’ll share it via '''Swift Package Manager (SPM)'''. (Optional: CocoaPods + XCFra...")
07:2207:22, 1 November 2025 Swift Sendable: a practical, step‑by‑step guide (2025) (hist | edit) [25,238 bytes] Ryan (talk | contribs) (Created page with " = Swift <code>Sendable</code>: a practical, step‑by‑step guide (2025) = <blockquote><code>Sendable</code> tells the Swift compiler ''“this value is safe to share across concurrent code (different tasks/actors) without data races.”'' It’s a compile‑time safety net. ([https://www.swift.org/migration/documentation/swift-6-concurrency-migration-guide/dataracesafety/?utm_source=chatgpt.com Swift....")

15:3915:39, 16 October 2025 The SwiftUI Observation Guide: @Observable, @Bindable, and Friends (2025 Edition) (hist | edit) [37,361 bytes] Ryan (talk | contribs) (Created page with " = The SwiftUI Observation Guide: <code>@Observable</code>, <code>@Bindable</code>, and Friends (2025 Edition) = '''Tested with:''' * '''Xcode:''' 26.0.1 (17A400) * '''Swift:''' 6.2 '''Minimum platforms for Observation APIs:''' iOS 17.0+, iPadOS 17.0+, macOS 14.0+, tvOS 17.0+, watchOS 10.0+, visionOS 1.0+. ([https://developer.apple.com/news/releases/?id=09222025m&utm_source=ch...")
13:3313:33, 16 October 2025 Media Playback Programming for iOS & macOS (Step-by-Step, with runnable code) (hist | edit) [52,941 bytes] Ryan (talk | contribs) (Created page with " = Media Playback Programming for iOS & macOS (Step-by-Step, with runnable code) = '''Version banner (verified):''' '''Tested with Swift 6.2, Xcode 26.0.1''', minimum targets '''iOS 17 / iPadOS 17, macOS 14''' (to use SwiftUI '''<code>@Observable</code>''' and the modern SwiftUI/AVKit stack). Generated '''Oct 16, 2025 (Asia/Seoul)'''. * Apple confirms '''Xcode 26.0.1''' and t...")

04:4604:46, 15 October 2025 How to Create a macOS Shortcut to Instantly Insert Today’s Date Anywhere (hist | edit) [5,310 bytes] Ryan (talk | contribs) (Created page with " = Show Today’s Date with Apple Shortcuts (macOS) = '''Overview:''' We’ll build a simple shortcut that gets today’s date, formats it, then shows it as a notification, copies it to the clipboard, and pops up an alert. == Steps == # Open '''Shortcuts''' on your Mac. # In the left sidebar, click '''All Shortcuts'''. # Click the '''+''' button (top-right) to create a new shortcut....") originally created as "Show Today’s Date with Apple Shortcuts (macOS)"

10:5910:59, 14 October 2025 Copyable vs Noncopyable in Swift — A Friendly, Step‑by‑Step Guide (hist | edit) [21,116 bytes] Ryan (talk | contribs) (Created page with " = Copyable vs Noncopyable in Swift — A Friendly, Step‑by‑Step Guide = == Table of Contents == # '''Big Picture (Why this matters)''' # '''What “copying” means in Swift''' 2.1 Value types (struct/enum) 2.2 Reference types (class) 2.3 Implicit copies vs explicit copies # '''<code>Copyable</code> and <code>~Copyable</code> (noncopyable)''' 3.1 The...")

13:4913:49, 11 October 2025 Git Sparse-Checkout — A Friendly Guide (with --cone vs non-cone) (hist | edit) [11,069 bytes] Ryan (talk | contribs) (Created page with " = 1) Introduction = '''What is sparse-checkout?''' Sparse-checkout lets you '''check out only part of a repository''' to your working directory. You still have the full commit history locally, but you only download or materialize certain folders/files to save time and disk space. '''Why use it?''' * Large/monorepos: You don’t need everything. * Faster operations: Less to index, build, and search. * Clear focus: Only the folders you ca...")
13:3513:35, 11 October 2025 Building and Shipping a Safari Web Extension on macOS (Manifest V3, 2025 Edition): A Complete Step-by-Step Guide (hist | edit) [36,737 bytes] Ryan (talk | contribs) (Created page with " = 1) Quick overview = <blockquote>Quick version notes (today) * '''Manifest V3 is supported in Safari''' (initially from Safari '''15.4+''') and remains supported in current Safari. ([https://webkit.org/blog/12445/new-webkit-features-in-safari-15-4/?utm_source=chatgpt.com WebKit]) * Latest '''Xcode''' release (stable): '''Xcode 26 (17A324)''' (Apple’s official releases page). * Use the latest '''macOS''' and '''Safari''' available i...")

10:4810:48, 10 October 2025 Codex‑CLI Power User Guide (2025) (hist | edit) [10,833 bytes] Ryan (talk | contribs) (Created page with " = Codex‑CLI Power User Guide (2025) = == 1) What is Codex‑CLI? == Codex‑CLI is a '''local coding agent''' you run from your terminal. It can '''read files''', '''edit code''', and '''run commands''' in the directory you choose. You talk to it with plain English (and even attach screenshots). It plans, makes diffs, runs tests, and iterates — like a teammate who works directly i...")

12:0012:00, 7 October 2025 Monorepo Management with Git – Best Practices and Workflows (hist | edit) [16,249 bytes] Ryan (talk | contribs) (Created page with " = Monorepo Management with Git – Best Practices and '''Workflows''' = == 1) Introduction == '''What is a monorepo?''' A ''monorepo'' is a single Git repository that stores many projects (apps, services, libraries, tools) together. Example: <code>apps/web</code>, <code>apps/mobile</code>, <code>libs/ui</code>, <code>libs/auth</code>, <code>infra/terraform</code...")
08:1308:13, 7 October 2025 Bazel in a Monorepo — A Practical, Copy‑Ready Guide (hist | edit) [25,060 bytes] Ryan (talk | contribs) (Created page with " = Bazel in a Monorepo — A Practical, Copy‑Ready Guide = <blockquote>You already know build tools like Gradle, npm, or Make. This guide shows you '''how to use Bazel effectively in a real monorepo'''. We keep the language simple, give short examples, and end each section with a quick '''Takeaway'''. </blockquote> ----- == 1) Introduction to Bazel == '''What...")

08:1508:15, 5 October 2025 Thanksgiving Day (October 5, 2025) (hist | edit) [2 bytes] Ryan (talk | contribs) (Created page with "..") originally created as "Thanksgiving Day 2025"
08:1408:14, 5 October 2025 Today, I Did This (hist | edit) [40 bytes] Ryan (talk | contribs) (Created page with "* Thanksgiving Day 2025")

00:1000:10, 3 October 2025 Mermaid Flowcharts (with UML Meanings) (hist | edit) [17,824 bytes] Ryan (talk | contribs) (Created page with " = Mermaid Flowcharts (with UML Meanings) = '''Beginner‑friendly guide with short explanations and many examples.''' ----- == 1) What is Mermaid Flowchart? == A '''flowchart''' is a diagram made of '''nodes''' (shapes with text) connected by '''edges''' (lines/arrows). Mermaid lets you write text that renders into a diagram. '''Mermaid Flowchart ≠ UML''': Mermaid...")

14:3414:34, 2 October 2025 Mermaid Sequence Diagrams: Syntax, UML Meaning, and Best Practices (hist | edit) [19,555 bytes] Ryan (talk | contribs) (Created page with " == 1) Introduction == '''What is a sequence diagram?''' A sequence diagram shows '''how things talk to each other over time'''. Each “thing” (a person, system, service, object) is drawn as a '''lifeline'''. Messages (arrows) go back and forth to show the order of actions. In UML, sequence diagrams are a kind of '''interaction diagram'''. '''Why use Mermaid?''' Mermaid lets you write diagrams as '''text'''. This is great for code revi...")

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