# Development Guide

This guide covers how to set up the development environment, build the project, and run the tests.

## Prerequisites

1.  **Go:** Version 1.25 or later.
2.  **Node.js & npm:** For building the Angular frontend.
3.  **Wails Dependencies:**
    - **Linux:** `libgtk-3-dev`, `libwebkit2gtk-4.1-dev`
    - **macOS/Windows:** Standard development tools (Xcode Command Line Tools / build-essential).

## Setup

1.  Clone the repository and enter the workspace.

2.  Install Go dependencies:
    ```bash
    go mod tidy
    ```

3.  Install Frontend dependencies:
    ```bash
    cd ui
    npm install
    cd ..
    ```

## Building the Project

### Frontend
```bash
cd ui
npm run build
```

### Backend / Application
This package is exercised through Go tests and the host application that embeds it.

To run the tests:
```bash
go test ./pkg/display/...
```