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GEMINI.md

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+# Gemini Code Assistant Context
+
+This document provides context for the Gemini code assistant to understand and assist with the development of this project.
+
+## Project Overview
+
+This is a simple, terminal-based Tic-Tac-Toe game written in C++. It uses the `ncurses` library to create the game interface in the terminal. The game is played on a 5x5 grid.
+
+The project is structured into three main components:
+
+*   **`Engine`**: The main game engine that manages the game loop, player turns, and input processing.
+*   **`Window`**: Handles the display of the game board in the terminal.
+*   **`Player`**: Represents a player in the game.
+
+## Building and Running
+
+The project uses CMake for building.
+
+**To build the project:**
+
+```bash
+mkdir build
+cd build
+cmake ..
+make
+```
+
+**To run the game:**
+
+```bash
+./tic_tac_toe
+```
+
+## Development Conventions
+
+*   **Language**: C++23
+*   **Build System**: CMake
+*   **Code Style**: The code follows a consistent style with the use of header guards, and clear naming conventions.
+*   **Testing**: There are no tests in the project.