iOS Engineer / Builder
Luminoid
iOS engineer who builds apps, frameworks, and developer tools with Swift.
Apps
Full-featured iOS plant care app — Gemini-powered AI identification from photos, on-device ML identification, per-plant watering schedules with smart rescheduling, growth tracking with measurements and fertilization logs, photo timeline with EXIF metadata, field sightings on an interactive map, WeatherKit calendar overlay with location picker and offline cache, iCloud sync via CloudKit, JSON import/export, Spotlight indexing, share extension, and home screen widgets. 950+ built-in plants in 4 languages (English, Spanish, Simplified & Traditional Chinese), with a custom-URL data source option.
Full-featured iOS pet care app — weight charts, vaccines, parasite prevention, medications, baths, symptoms, and vet visits with reminders, all rolling up into a unified Care Journal timeline. 8 species and 477 breeds (dog / cat / bird / rabbit / small mammal) with ranked search and an A-Z section index. Subject-lifted hero avatars with Live Photo playback and a lift/unlift toggle that animates the avatar circle. Resources tab consolidates expenses, food, nutrition, active medications, litter, bedding, vet contacts, and toys/grooming/other across pets. Family Sharing via CloudKit, Gemini-powered structured record extraction from pasted text notes, home screen widgets, Spotlight search, 20 app icons (iOS 18 light/dark on iPhone/iPad), and ZIP export/import. EN/ES/ZH-Hans.
Frameworks
LumiKit
Design tokens, UI components & utilities for iOS
Modular Swift Package — Core (logger, date/file utilities), UI (design tokens, theming, components, photo browser, share, QR code), Network (URLProtocol request debugger), and Lottie (pull-to-refresh). Built with Swift 6.2 strict concurrency.
Prism
Camera pipeline framework for iOS
Modular Swift Package — Core (actor-isolated AVCaptureSession with async/await capture for still, Live Photo, Portrait, burst, night composite, and video; full manual exposure / ISO / shutter / focus / white balance surface; iOS 17 RotationCoordinator; iOS 17/18 responsive capture and zero shutter lag) and UI (Metal preview view, shutter button, focus indicator, grid, level, aspect mask, settings drawer). Metal-backed Core Image filter pipeline with 20 built-in filters and correct per-filter intensity blending. Built with Swift 6.2 strict concurrency.
Tools
Monolith
Swift project scaffolding CLI
CLI that scaffolds iOS apps (XcodeGen / `.xcodeproj` / SPM), Swift Packages, and Swift CLIs from production-grade templates. 25 optional app features (SwiftData, Core Data + CloudKit, widgets, Mac Catalyst, localization, privacy manifest). Three-flag package wiring (`--use-packages` registry, `--external-packages`, `--target-deps`). 22-color LMKTheme palette derived from one hex. App Store ready out of the box: multi-locale `Localizable.xcstrings`, App Store category in Info.plist + build settings, 3-variant AppIcon skeleton (light / dark / iOS 18 tinted). Interactive wizard + `doctor` diagnostics.
Content
Blog
VisitPersonal tech blog on iOS development, AI services, web deployment, Git, shell automation, and dev environment guides.
Interactive toolkit for optics and astrophysics visualization — Snell's law prism refraction, Schwarzschild gravitational lensing, procedural nebula rendering, topographic contour maps, and Moire interference patterns. Real-time Canvas rendering with 4K export.
Curated collection of timeless quotes from philosophers, writers, poets, artists, scientists, and more, bilingual in English and Chinese. 2,300+ quotes across 18 categories with original-language text, translations, and source attribution. Randomized featured quotes on each visit.