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README

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+# Sapling 🌱
+
+Sapling is a Git-native Markdown workspace for writing, research, documentation, and knowledge management.
+
+Unlike traditional note-taking applications where version control is an afterthought, Sapling treats Git as a first-class concept. Projects are repositories, history is preserved through commits, attachments are tracked through Git LFS, and complex workspaces can be composed using Git submodules.
+
+Sapling is designed to remain entirely client-side. Your files stay on your machine, your projects remain standard Git repositories, and synchronization is handled through any Git remote of your choice.
+
+## Vision
+
+Sapling aims to provide:
+
+- A modern Markdown editing experience
+- Native Git-based versioning
+- Repository portability
+- Long-term ownership of data
+- No proprietary sync service
+- No vendor lock-in
+
+Your files are just files.
+
+Your projects are just Git repositories.
+
+## Core Concepts
+
+### Workspace
+
+A workspace is a local container for files, folders, and projects.
+
+Workspaces are not versioned.
+
+They may contain:
+
+- Notes
+- Scratch documents
+- Local folders
+- Sapling projects
+
+### Project
+
+A project is a Git repository.
+
+Projects support:
+
+- Local commits
+- Branches
+- Tags
+- Remotes
+- Push and pull
+- Merge operations
+- Git LFS
+- Submodules
+
+Projects can be opened and managed through the graphical interface or external Git tooling.
+
+### Subprojects
+
+Projects may contain subprojects through Git submodules.
+
+Subprojects behave as independent repositories while remaining integrated into the parent project.
+
+Typical use cases:
+
+- Research repositories
+- Shared assets
+- Documentation libraries
+- Reusable knowledge bases
+
+## Features
+
+### Markdown Editor
+
+- Live hybrid Markdown editing
+- Markdown source on the active line
+- Rendered Markdown everywhere else
+- Syntax highlighting
+- Live preview
+
+### Rendering
+
+Initial support includes:
+
+- Markdown
+- LaTeX
+- Mermaid diagrams
+- Image embedding
+
+Future support may include:
+
+- Audio
+- Video
+- PDFs
+- Advanced diagrams
+- Interactive content
+
+### Attachments
+
+Attachments are stored within projects and tracked through Git LFS.
+
+Examples:
+
+- Images
+- PSD files
+- Design assets
+- PDFs
+- Binary resources
+
+Non-Markdown files are opened using the operating system's default application.
+
+### Git Integration
+
+Git is a first-class citizen.
+
+Supported operations include:
+
+- Repository creation
+- Clone
+- Commit
+- Push
+- Pull
+- Branch management
+- Merge workflows
+- History browsing
+- Submodule management
+
+Advanced users can open any project in a terminal and use Git directly.
+
+## Platform Support
+
+### macOS
+
+Primary target platform.
+
+Uses native macOS technologies and integrates with the system Git installation.
+
+### iOS
+
+Future target platform.
+
+Will share as much code as possible with the macOS application while providing an embedded Git implementation suitable for iOS.
+
+## Principles
+
+- Local-first
+- Git-native
+- Markdown-first
+- Open source
+- Portable
+- Extensible
+- Client-side
+
+## Status
+
+Sapling is currently in active development.