Development Diary - December 21, 2025
📋Daily Summary
The official start of ToonNotes Expo development. Launched the complete React Native/Expo app with Story Style and Webtoon Artist AI features, design templates, note management, and boards functionality. Later added production readiness improvements including comprehensive unit tests and validation utilities.
🕐Work Sessions
Session 1: Early Morning Testing (5:24 AM - 9:28 AM)
Focus: Webtoon Artist Feature Testing
Activities:
- Tested the webtoon artist feature functionality
- Initial app validation and debugging
Key Prompts:
- "test the webtoon artist feature"
Session 2: Android Planning (9:30 AM)
Focus: Cross-Platform Research
Activities:
- Researched best practices for Android development with current Expo stack
- Planned potential Android expansion
Key Prompts:
- "let's say I want to create an Android app based on this current expo app built for iPhone. research the best practice with our current dev stack and come up with a plan."
Session 3: Design UI Improvements (9:48 AM - 5:37 PM)
Focus: Design Template UX
Activities:
- Improved design templates to match note design appearance
- Added template names to My Designs and Apply Design pages
- Streamlined Add Reference flow by removing redundant buttons
- Adjusted note navigation and close behavior
- Removed decorative elements from design cards
Key Prompts:
- "for design templates, make them look the same as note design"
- "on the 'Add Reference', remove 'Select Image' button which is redundant"
- "run the app to test design cards"
Session 4: Background & Frame Fixes (5:38 PM - 11:28 PM)
Focus: Background Image and Frame Rendering
Activities:
- Fixed background image fill issues in notes
- Debugged frame border rendering for note designs
- Updated watercolor template
- Improved design creation flow navigation
- Initiated comprehensive code review for production readiness
- Added unit tests for stores, services, and utilities
Key Prompts:
- "when background was added to a note, the background image doesn't fill the full note area"
- "for some reason, some note design doesn't come with frame. inspect why this is happening"
- "when i create a new design from a note, instead of sending me to My Design page, send me back to the note"
- "let's run a code review for the entire app to make sure this is ready for production including unit test"
🏷️Categorized Work
Implementation
- Complete ToonNotes Expo app foundation (83 files, 24,901 lines)
- Story Style and Webtoon Artist AI features
- Design engine and Gemini service integration
- Note, design, board, and user stores
- Pattern assets and texture system
- Production readiness improvements (33 files, 7,770 lines)
- Comprehensive unit test suite
- Validation utilities and secure storage
📸Screenshots
No screenshots captured for this session
💡Insights & Learnings
Decision: Built the app using React Native/Expo for cross-platform capability while initially targeting iOS.
Learning: Background image fill requires careful handling of frame borders to ensure proper coverage.
Decision: Chose MobX-style stores for state management with debounced persistence.
📊Statistics
🎯Tomorrow's Focus
- Continue refining design templates
- Test Android compatibility
- Polish UI/UX based on testing feedback
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