Wallper App

Overview

• 4K/60fps H.264/H.265 video wallpapers (MP4)
• Built with SwiftUI, AVKit, Combine, CoreAnimation, CoreGraphics, CoreImage
• Metal-optimized rendering, low-latency decoding
• Smart filters: resolution, duration, size, category, created date
• Multi-device sync, license validation
• AWS Lambda (Node.js runtime), API Gateway, S3/MinIO storage
• CloudFront CDN delivery, DynamoDB for likes/metadata
• Secure with macOS App Sandbox, Hardened Runtime, Code Signing, Notarization
• Efficient caching with NSCache + URLSession background downloads
• JSON-based API communication, GZIP compression, CORS enabled

Tech Stack

Frontend: SwiftUI, AVKit, Combine, CoreAnimation, Metal, CoreImage
Backend: AWS Lambda, API Gateway, S3, MinIO, DynamoDB, CloudFront
Build Tools: Xcode, SwiftPM, Shell scripts
Infra: HTTPS, JSON APIs, GZIP, CORS
DevOps: GitHub Actions, macOS code signing & notarization

License

Private project for educational and experimental purposes.