Summary

On macOS, treemd only reads config from ~/Library/Application Support/treemd/config.toml. It would be more convenient to prioritize ~/.config/treemd/config.toml instead.

Current Behavior

The Config::config_path() function uses dirs::config_dir(), which returns:

• Linux: ~/.config
• macOS: ~/Library/Application Support
• Windows: %APPDATA%

This means ~/.config/treemd/config.toml is not recognized on macOS.

Proposed Behavior

On macOS, check both paths with the following priority:

1. ~/.config/treemd/config.toml (primary)
2. ~/Library/Application Support/treemd/config.toml (fallback)

Motivation

• Many CLI tools and developer-focused applications support ~/.config on macOS
• Easier dotfiles management with a unified ~/.config directory
• Simpler to sync configs across Linux and macOS environments
• Users who prefer the Apple-standard path can still use it as a fallback

Possible Implementation

In src/config.rs, modify the Config::load() method:

pub fn load() -> Self {
    #[cfg(target_os = "macos")]
    {
        // Prefer XDG-style path on macOS
        if let Some(home) = dirs::home_dir() {
            let xdg_path = home.join(".config/treemd/config.toml");
            if let Some(config) = Self::load_from_path(&xdg_path) {
                return config;
            }
        }
    }
    // Fall back to platform-specific path
    if let Some(config) = Self::config_path().and_then(|p| Self::load_from_path(&p)) {
        return config;
    }
    Self::default()
}

This approach:

• Prioritizes ~/.config for users who prefer XDG-style paths
• Falls back to ~/Library/Application Support for existing users
• No change for Linux/Windows users