Shelgon: A Robust Rust Framework for Interactive REPL Apps

Shelgon is a powerful Rust framework for building interactive REPL (Read-Eval-Print Loop) applications and custom shells. It offers a flexible, type-safe foundation with built-in terminal UI capabilities using ratatui. Features include type-safe command execution, async runtime integration (tokio), a beautiful TUI, rich input handling (command history, cursor movement, tab completion, Ctrl+C/Ctrl+D handling), custom context support, and STDIN support. The project includes comprehensive documentation and examples to help developers quickly build their own shells.