Made unreal work and make the fake drive update with the json so you can edit the fake config and it writes to the real drive.

DevDriveConfig.cs

@@ -0,0 +1,57 @@
+using System.Text.Json.Serialization;
+
+namespace DevDrive;
+
+/// <summary>
+/// Represents the index.json configuration file structure.
+/// </summary>
+public class DevDriveConfig
+{
+    /// <summary>
+    /// Display name for the drive.
+    /// </summary>
+    [JsonPropertyName("driveName")]
+    public string DriveName { get; set; } = "Dev Drive";
+
+    /// <summary>
+    /// Icon path in format "path,index" (e.g. "%SystemRoot%\System32\shell32.dll,8").
+    /// </summary>
+    [JsonPropertyName("driveIcon")]
+    public string DriveIcon { get; set; } = "";
+
+    /// <summary>
+    /// Total drive capacity in MB (for display purposes).
+    /// </summary>
+    [JsonPropertyName("driveTotalMB")]
+    public double DriveTotalMB { get; set; } = 1.44;
+
+    /// <summary>
+    /// Free space in MB (for display purposes).
+    /// </summary>
+    [JsonPropertyName("driveFreeMB")]
+    public double DriveFreeMB { get; set; } = 0.72;
+
+    /// <summary>
+    /// List of symlink entries to create in the drive root.
+    /// </summary>
+    [JsonPropertyName("paths")]
+    public List<SymlinkEntry> Paths { get; set; } = [];
+}
+
+/// <summary>
+/// Represents a single symlink entry.
+/// </summary>
+public class SymlinkEntry
+{
+    /// <summary>
+    /// Name of the symlink (folder/file name in the drive).
+    /// </summary>
+    [JsonPropertyName("name")]
+    public string Name { get; set; } = string.Empty;
+
+    /// <summary>
+    /// Target path the symlink points to.
+    /// </summary>
+    [JsonPropertyName("path")]
+    public string Path { get; set; } = string.Empty;
+}