#What is Obsidian

It introduces itself on the official website as follows:

• Obsidian is the private and flexible note‑taking app that adapts to the way you think.

LifeOS uses Obsidian as its implementation tool, mainly to leverage its powerful customization abilities and rich plugin ecosystem!

Obsidian is a private and flexible note-taking application that adapts to your thinking patterns, as described on its official website. It is a Markdown-based note-taking software with several distinctive advantages that make it stand out among other note-taking tools:

#Markdown Support

• Uses plain text format, making files lightweight and portable
• Grants full control over Markdown file management

#Local Storage

• Saves notes locally, ensuring data privacy and maximum security
• Fully functional offline

#Powerful Linking Capabilities

• Supports bidirectional linking to create network-like note structures
• Includes graph view to visualize connections between notes

#Plugin System

• Extensible via community-driven plugins (calendar, task management, etc.)
• Supports custom scripting for advanced users

#High Customizability

• Custom themes via CSS modification
• Configurable workspaces for different needs

#Efficiency

• Fast performance due to local storage
• Extensive keyboard shortcuts for quick operations

#Free Core Features

• The basic version is free for personal use, it's a great choice for those who want to manage their notes and tasks without spending money.

LifeOS adopts Obsidian as its foundation specifically to leverage its powerful customization and rich plugin ecosystem for building comprehensive personal productivity systems.