first version worth putting in git - compiles and runs - missing a lot still.

lib/models/osm_camera_node.dart

@@ -0,0 +1,18 @@
+import 'package:latlong2/latlong.dart';
+
+class OsmCameraNode {
+  final int id;
+  final LatLng coord;
+  final Map<String, String> tags;
+
+  OsmCameraNode({
+    required this.id,
+    required this.coord,
+    required this.tags,
+  });
+
+  bool get hasDirection => tags.containsKey('direction');
+  double? get directionDeg =>
+      hasDirection ? double.tryParse(tags['direction']!) : null;
+}
+