FunfunZenWriter

A distraction-free Markdown editor for the desktop. Pure white canvas, no toolbars, no clutter — just you and your writing. Built with Tauri 2 (Rust + Svelte).

Features

• Distraction-free — full white canvas, 800px centered text, no toolbars
• Auto-save — saves automatically 1 second after you stop typing
• Live preview — split-pane Markdown preview, toggled with Ctrl+Shift+V
• Command palette — Ctrl+Shift+P to access all commands with shortcut hints
• Font picker — choose font family and size, persisted across sessions
• Splash window — full-size branded splash on startup, dismisses automatically
• AI-ready — stub backend command wired for future LLM integration
• Fast — UTF-8 rope buffer (ropey) handles large files efficiently

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Install

Download the latest release for your platform from the Releases page:

Platform	File
Debian / Ubuntu	FunfunZenWriter_x.x.x_amd64.deb
Fedora / RHEL	FunfunZenWriter-x.x.x-1.x86_64.rpm
Any Linux	FunfunZenWriter_x.x.x_amd64.AppImage

Debian / Ubuntu

sudo dpkg -i FunfunZenWriter_*.deb

RPM (Fedora / RHEL)

sudo rpm -i FunfunZenWriter-*.rpm

AppImage (any Linux distro)

chmod +x FunfunZenWriter_*.AppImage
./FunfunZenWriter_*.AppImage

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Development setup

Prerequisites

Tool	Version
Rust	1.70+
Node.js	20 LTS
System libs	see below

Linux system libraries:

sudo apt-get install -y \
  libwebkit2gtk-4.1-dev \
  libgtk-3-dev \
  libayatana-appindicator3-dev \
  librsvg2-dev \
  patchelf

Run in development mode

# Clone the repo
git clone https://github.com/aoqfonseca/funfuneditor.git
cd funfuneditor

# Install JS dependencies
npm install

# Start the app (Vite dev server + Tauri window)
cargo tauri dev

Build a release bundle

cargo tauri build

Artifacts are written to src-tauri/target/release/bundle/.

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Keyboard shortcuts

Shortcut	Action
Ctrl+Shift+P	Open command palette
Ctrl+S	Save current file
Ctrl+O	Open file
Ctrl+Shift+S	Save as…
Ctrl+N	New file
Ctrl+Shift+V	Toggle Markdown preview
Ctrl+,	Font & size picker

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Project structure

funfuneditor/
├── src-tauri/          # Rust backend (Tauri)
│   ├── src/
│   │   ├── main.rs         # Entry point
│   │   ├── lib.rs          # Tauri builder + command registration
│   │   └── file_manager.rs # File I/O via ropey + AI stub
│   ├── capabilities/
│   │   └── default.json    # Tauri 2 permissions
│   └── tauri.conf.json
├── src/                # Svelte frontend
│   ├── routes/
│   │   ├── +page.svelte        # Main editor page
│   │   └── splash/+page.svelte # Splash screen (own Tauri window)
│   └── lib/
│       ├── Editor.svelte       # Textarea component
│       ├── Preview.svelte      # Markdown preview (marked)
│       ├── CommandPalette.svelte
│       ├── FontSettings.svelte # Font/size picker panel
│       ├── FontLoader.svelte   # Dynamic Google Font injection
│       ├── commands.ts         # Typed Tauri invoke wrappers
│       └── ai_service.ts       # AI integration stub
└── .github/workflows/
    └── release.yml     # CI: build + publish on push to main/master

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Contributing

Contributions are welcome. Please follow these steps:

1. Fork the repository and create a branch from master:

   git checkout -b feature/my-feature

2. Make your changes. Keep commits focused — one logical change per commit.

3. Test locally before opening a PR:

   cargo tauri dev   # smoke-test in dev mode
   cargo tauri build # verify the release build passes

4. Open a pull request against master with a clear description of what changed and why.

Guidelines

• Rust code: run cargo clippy and fix any warnings before submitting
• Svelte/TypeScript: keep components small and focused
• No new dependencies without discussion — keep the binary lean
• The AI integration (ai_service.ts / process_text_with_ai) is intentionally a stub; PRs adding real LLM backends are very welcome

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License

MIT © Andre Fonseca