API mostly working, starting to work on webapp

ConfigService.cs

@@ -0,0 +1,30 @@
+using System.Text.Json;
+
+namespace ComiServ
+{
+    public class Configuration
+    {
+        public string LibraryRoot { get; set; }
+        public string DatabaseFile { get; set; }
+        public Configuration Copy()
+            => MemberwiseClone() as Configuration
+                //this really shouldn't be possible
+                ?? throw new Exception("Failed to clone configuration");
+    }
+    public interface IConfigService
+    {
+        public Configuration Config { get; }
+    }
+    public class ConfigService : IConfigService
+    {
+        public Configuration _Config;
+        //protect original
+        public Configuration Config => _Config.Copy();
+        public ConfigService(string filepath)
+        {
+            using var fileStream = File.OpenRead(filepath);
+            _Config = JsonSerializer.Deserialize<Configuration>(fileStream)
+                ?? throw new ArgumentException("Failed to parse config file");
+        }
+    }
+}