Lapse

A cross-platform flashcard app with spaced repetition, built with Flutter.

This is a school project and is not accepting outside contributions. Pull requests, issues, and comments from non-team members will be closed without review.

Features

• Spaced Repetition — FSRS algorithm for optimal review scheduling
• Nested Decks — Organize cards into hierarchical deck structures
• Offline-First — Local SQLite storage, study anywhere
• Cross-Platform — Linux, macOS, Windows, Android, iOS
• Custom Desktop UI — Frameless window with native-themed titlebar buttons

Tech Stack

Layer	Technology
Framework	Flutter
State Management	Riverpod
Routing	GoRouter (flat routes, platform-aware transitions)
Database	SQLite via sqflite
Scheduling	FSRS (Free Spaced Repetition Scheduler)
Desktop Titlebar	window_manager + modern_titlebar_buttons

Project Structure

lib/
├── core/
│   ├── database/       # DatabaseHelper, constants
│   ├── routing/        # GoRouter config, page transitions
│   ├── theme/          # Material 3 dark theme, colors, spacing
│   └── widgets/        # Shared components (AppScaffold, dialogs, etc.)
├── features/
│   ├── cards/          # Flashcard CRUD
│   ├── decks/          # Deck management (nested hierarchy)
│   └── study/          # Study sessions, FSRS scheduling
└── main.dart

Getting Started

Prerequisites

• Flutter SDK
• Dart SDK

Build & Run

git clone https://github.com/Pairadux/lapse.git
cd lapse
flutter pub get
flutter run

A dev drawer (swipe from left edge) is available in debug builds for navigating screens and loading mock data.

Status

This project is in active development as a school project. See docs/ for AI usage logs and design documentation.

License

All rights reserved. This source code is provided for viewing purposes only. No permission is granted to use, copy, modify, or distribute this software.