⚙️ Configuration Guide

leetrs uses a simple TOML configuration file (config.toml) to manage default programming languages, editor launch commands, and display options.

---

📁 Configuration File Location

The configuration file is stored in standard system directories according to XDG / OS conventions:

Platform	Configuration Path
Linux / macOS	~/.config/leetrs/config.toml
Windows	%APPDATA%\leetrs\config.toml

Automatic File Creation

If config.toml does not exist when leetrs is invoked, leetrs creates the directory and populates config.toml with default values automatically.

---

🛠️ Configuration Options

Parameter	Type	Default	Description
editor	string	"nvim"	Command executed when picking a problem. Supports "nvim", "vim", "code", or any custom terminal editor binary.
language	string	"python3"	Default language slug used when fetching problem code templates ("rust", "python3", "pythondata", "mysql", "postgresql").
show_description	boolean	true	When true, opens the problem description alongside the code template in split view.

---

📄 Example config.toml

Default Configuration

# ~/.config/leetrs/config.toml
editor = "nvim"
language = "python3"
show_description = true

Rust Developer Setup

# ~/.config/leetrs/config.toml
editor = "nvim"
language = "rust"
show_description = true

VS Code Integration Setup

# ~/.config/leetrs/config.toml
editor = "code"
language = "python3"
show_description = true

---

🔧 Behavior Notes

• Neovim & Vim Splitting: When editor contains "nvim" or "vim" and show_description is true, leetrs executes:

  nvim <desc_file.md> -c "vsplit <code_file.ext>"

  This creates a vertical side-by-side split automatically.
• Other Editors: For editors like code (VS Code), leetrs passes both file paths as positional arguments:

  code <desc_file.md> <code_file.ext>