Knot - Minimalist Cross-Scenario Recording Tool

🌟 Project Overview

Knot is an intelligent multi-scenario recording tool inspired by the minimalist concept of ancient "knot-tying" memorization. By integrating core modules such as todo lists, smart notes, and document reading with multi-platform client support, we create a full-scenario productivity toolchain.

Etymology: Just as ancient civilizations recorded important events with physical knots, we continue this simple yet efficient concept through digital "knots".

Click to view code lines statistics (updated automatically)

📱 Core Features

Multi-modal Recording System

• Smart Todo List
  Supports voice input (long-press add button), recurring reminders, and intelligent sorting
• Markdown Notes
  Real-time preview + Syntax highlighting + Image/attachment embedding
• Exercise Tracker
  Precision pedometer + GPS trajectory recording (cycling/running scenarios)
• Data Dashboard
  Visualized statistics + Periodic report generation

Multi-format Document Support

• E-book reader (EPUB/PDF/TXT)
• Document annotation system
• Cross-document content search

Data Management System

• Local/cloud dual backup (WebDAV/OneDrive)
• Encrypted data synchronization (AES-256)
• Cross-platform data migration (Import/Export)

🖥️ Multi-Platform Support

Platform	Core Features	Sync Solutions
Android	Full feature experience	Native cloud sync + Local backup
Windows	Note/Todo editing	Syncthing/WebDAV
macOS	Note/Todo editing	Syncthing/WebDAV
Linux	Note/Todo editing	Syncthing/WebDAV

⚙️ User Guide

Cloud Sync Configuration

1. WebDAV Sync
   Main Menu > Cloud Sync Configure server parameters and enable "Auto-Sync"
2. Data Encryption
   Settings > Preferences Enable encryption for cloud data security

Real-time Reminder Setup

1. Open Android System Settings
2. Navigate to "App Startup Management"
3. Allow Knot's background activities

Permission Specifications

Permission Type	Usage Scenario	Configuration Path
Storage	Local data storage	Auto-request on first launch
Microphone	Voice memo functionality	Long-press add button in Todo UI
Camera	Note photography	Attachment menu in note editor
GPS	Exercise trajectory recording	Activated in location services module
Notification	Todo reminder	Auto-request on first launch
Step Counter	Step counting	Activated in fitness module

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Background Permissions Setup Guide

1. Why Enable These Permissions?

Enabling the following permissions ensures core app functionality works properly:

• ​Instant Task Reminders: Prevents the system from closing the app during sleep mode to avoid missing critical alerts
• ​Continuous Activity Tracking: Allows GPS to record workout routes in the background (e.g., running, cycling)
• ​Feature Integration: Enables interaction with other apps/services (e.g., adding tasks from calendar)

⚠️ Potential issues if disabled:
• Delayed or missed reminders
• Interrupted workout tracking
• Some integration features unavailable

2. How to Configure? (Universal Steps)

Follow these steps (menu names may vary slightly across devices):

1. ​Open System Settings​
   Settings → Apps / Application Manager

2. ​Locate This App​
   Select the app from the list (use search bar if available)

3. ​Enable Required Permissions​
   Activate these options as needed:
   ✅ Auto-start
   ✅ Associated startup
   ✅ Allow background activity
   ✅ Disable Battery optimization/Power saving restrictions

4. ​Brand-Specific Settings Paths​

   Brand	Additional Configuration Path
   Xiaomi	Security Center → Permissions
   Huawei	Battery Optimization → All Apps List
   OPPO	Battery → High Power Consumption Protection
   vivo	Background Power Management → Allow Background
   Samsung	Settings → Battery → Background Usage Limits
   Google (Pixel)	Settings → Apps → [App Name] → Battery → Unrestricted

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📥 Download & Installation

Latest Version Acquisition:

• Scan QR code (Recommended for Android)
  
• GitHub Releases
• API

Download Statistics

Platform	Release File	Downloads
Android	android-build-release-signed.apk
Linux	Knot-Linux-x86_64.AppImage
macOS	Knot-Mac.dmg
Windows	Knot-Win64.zip
Total	-

🔒 Data Security Architecture

graph LR
    A[Local Device] -->|AES-256 Encryption| B(WebDAV Server)
    B --> D[Multi-device Decryption Sync]

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📜 Complete Open Source Acknowledgments

All dependencies are preserved in original format for maintenance and upgrades:

Document Processing Components

Project Name	Functionality	Repository Link
cmark-gfm	GitHub-flavored Markdown extension	github/cmark-gfm

Security & Utility Libraries

Project Name	Functionality	Repository Link
Qt-AES	Data encryption module	bricke/Qt-AES
quazip	Compression/archive support	stachenov/quazip
ini4j	Configuration file management	ini4j
zlib	Data compression algorithm	zlib.net

UI & Auxiliary Tools

Project Name	Functionality	Repository Link
QScintilla	Desktop note editor	QScintilla

Android-specific Components

Project Name	Functionality	Repository Link
AndroidPdfViewerDemo	Android PDF rendering	DImuthuUpe/AndroidPdfViewer
Markwon	Android Markdown rendering	noties/Markwon
Prism4j	Code highlighting support	noties/Prism4j

Other Dependencies

Project Name	Functionality	Repository Link
iconfinder	Icon resources	iconfinder
cppjieba	Chinese text segmentation	yanyiwu/cppjieba

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🔗 Maintenance Reference

Recommended dependency update monitoring:

# Check repository status using GitHub CLI
gh repo view [REPO_NAME] --json name,url,updatedAt,pushedAt

All components follow their original open source licenses. Verify during upgrades:

1. License compatibility (GPL/LGPL/MIT)
2. API changelogs
3. Binary compatibility testing

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We welcome community contributions. Full technical documentation: Technical Architecture

Complete dependency list: build.gradle

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