Yotei - Highly modular & customizable SwiftUI calendar

I built a calendar package for iOS that focuses on modularity, customization, and performance.

GitHub: https://github.com/claustrofob/Yotei

Why I built it

I kept rewriting calendars across projects and couldn’t find something that was both flexible and performant. Most solutions were either pure SwiftUI with corresponding bugs and limitations, UIKit-heavy (fast but harder to integrate cleanly) or some abandoned packages.

Key ideas

• Highly modular architecture — use only the pieces you need
• Fully customizable UI and behavior
• SwiftUI-first API
• UIKit under the hood for smooth scrolling & performance
• Native iOS feel

Example use cases

• Scheduling apps
• Habit trackers
• Fitness / activity apps
• Booking interfaces
• Timeline-based UIs

Would love feedback! Contributions welcome 🙌