Onyx

A local-first, cross-platform tasks application built with Rust. Inspired by Google Tasks, designed for speed and flexibility.

Core Principles

• Local-First: Your data, your folder, your control
• Fast: Sub-second startup, instant response
• Cross-Platform: Single codebase, all platforms
• Flexible: Multiple workspaces for different contexts

Project Structure

onyx/
├── Cargo.toml                    # Workspace definition
├── PLAN.md                       # Detailed project plan
├── README.md                     # This file
├── crates/
│   ├── onyx-core/          # Core library (backend)
│   └── onyx-cli/           # CLI frontend
├── apps/
│   └── tauri/                    # Tauri v2 GUI (Svelte 5 + Tailwind CSS 4)
└── docs/

Project Status

• Phase 1 (Core + CLI): Complete
• Phase 2 (WebDAV Sync): Complete — backend, CLI, and GUI all wired
• Phase 3 (GUI MVP): Complete
• Phase 4 (Mobile): Tauri Android cfg-gated, needs tauri android init + build

Core Library (onyx-core)

• Data models (Task, TaskList, AppConfig, WorkspaceConfig)
• Markdown file I/O with YAML frontmatter
• Local storage with repository pattern
• Multiple workspace support
• Task ordering and grouping
• Subtask hierarchy (parent_id)
• WebDAV sync with three-way diff and offline queue
• Platform keychain credential storage (feature-gated for Android)
• Checksum-based conflict resolution (remote wins, local recovered as duplicate)

CLI (onyx-cli)

• Workspace management (init, add, list, switch, remove, retarget, migrate)
• Task list management (create, show, delete)
• Task operations (add, complete, delete, edit)
• Group-by-due-date toggle
• WebDAV sync (setup, push, pull, status)

GUI (apps/tauri/)

• Tauri v2 + Svelte 5 + Tailwind CSS 4
• Task CRUD with animated transitions
• Drag-and-drop reordering
• Sliding lists drawer, settings popup
• Workspace switcher with add/remove
• Dark mode (GNOME-style neutral grays, cyan-blue accent)
• Due date picker/editor with optional time
• Subtask hierarchy with three-panel slide navigation
• Move tasks between lists
• List rename, group-by-due-date toggle, delete completed tasks
• Keyboard shortcuts (Escape priority chain)
• WebDAV setup flow with credential auto-population
• File watcher (auto-reloads on external changes)
• Auto-sync with configurable interval, status indicators
• Custom confirmation dialogs
• Desktop packaging (Linux: AppImage + .deb; Windows: MSI)

Development Setup

Prerequisites

• Rust 1.70+ (install from rustup.rs)
• Git
• Node.js 18+ (for Tauri GUI)

Build

# Clone and build
git clone https://github.com/SteelDynamite/onyx.git
cd onyx
cargo build

# Run tests
cargo test -p onyx-core

# Run CLI
cargo run -p onyx-cli -- --help

# Run Tauri GUI
cd apps/tauri && npm install
npm run tauri dev

Quick Start

Initialize your first workspace

# Initialize a new workspace
cargo run -p onyx-cli -- init ~/Documents/Tasks --name personal

# This creates:
# - A workspace named "personal" at ~/Documents/Tasks
# - A default list called "My Tasks"
# - Sets "personal" as the current workspace

Add and manage tasks

# Add a task
cargo run -p onyx-cli -- add "Buy groceries"

# Add a task with due date
cargo run -p onyx-cli -- add "Review PR #123" --list "Work" --due "2026-11-15"

# List all tasks
cargo run -p onyx-cli -- list show

# Complete a task
cargo run -p onyx-cli -- complete <task-id>

# Edit a task (opens in $EDITOR)
cargo run -p onyx-cli -- edit <task-id>

# Delete a task
cargo run -p onyx-cli -- delete <task-id>

Manage workspaces

# Add another workspace
cargo run -p onyx-cli -- workspace add shared ~/Dropbox/TeamTasks

# List workspaces
cargo run -p onyx-cli -- workspace list

# Switch workspace
cargo run -p onyx-cli -- workspace switch shared

# Use specific workspace for a command
cargo run -p onyx-cli -- add "Team meeting" --workspace shared

Manage task lists

# Create a new list
cargo run -p onyx-cli -- list create "Work"

# Show tasks in a specific list
cargo run -p onyx-cli -- list show --list "Work"

# Delete a list
cargo run -p onyx-cli -- list delete "Work"

Data Format

Tasks are stored as markdown files with YAML frontmatter (Obsidian-compatible):

---
id: 550e8400-e29b-41d4-a716-446655440000
status: backlog
version: 3
due: 2026-11-15T14:00:00Z
---

Task description and notes go here in **markdown** format.

- Can include lists
- Rich formatting
- Links, etc.

File System Structure

~/Documents/Tasks/           # User-selected folder
├── .onyx-workspace.json     # Workspace metadata: list ordering, detection
├── My Tasks/                # Task list folder
│   ├── .listdata.json       # List metadata: task order, id, timestamps
│   ├── Buy groceries.md     # Individual task files
│   └── Call dentist.md
└── Work/
    ├── .listdata.json
    ├── Review PRs.md
    └── Team meeting prep.md

Testing

Run the test suite:

# Run all tests
cargo test

# Run tests for specific crate
cargo test -p onyx-core

# Run tests with output
cargo test -- --nocapture

What's Next?

• Phase 4: Mobile support (iOS & Android via Tauri v2 mobile)
• Phase 5: GUI advanced features (rich markdown editor, search/filter)
• Phase 6: Mobile polish and platform-specific integrations
• Phase 7: Google Tasks importer and unique features

See PLAN.md for detailed roadmap.

License

GNU General Public License v3.0 (GPL-3.0)

This project is free and open-source software.