diff --git a/flake.nix b/flake.nix
index 4279eb1..c0e29e8 100644
--- a/flake.nix
+++ b/flake.nix
@@ -28,6 +28,10 @@
         GST_DEV_PATH = pkgs.gst_all_1.gstreamer.dev;
         GLIB_DEV_PATH = pkgs.glib.dev;
         GLIB_PATH = pkgs.glib.out;
+
+	HAILORT_LOGGER_PATH = "./logs";
+	HAILORT_CONSOLE_LOGGER_LEVEL = "info";
+	HAILO_MONITOR = 1;
       };
     }
   );
diff --git a/logs/hailort.log b/logs/hailort.log
new file mode 100644
index 0000000..e69de29
diff --git a/src/main.zig b/src/main.zig
index d860013..24c3079 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -7,8 +7,7 @@ const hlo = @cImport({
 const Allocator = std.mem.Allocator;
 const assert = std.debug.assert;
 
-// const hef_file = "yolov5s.hef";
-const hef_file = "./libhailort/examples/hefs/shortcut_net";
+const hef_file = "yolov7.hef";
 const max_edge_layers = 32;
 
 
@@ -36,6 +35,10 @@ pub fn main() void {
     var input_vstream_size       : usize = max_edge_layers;
     var output_vstream_size      : usize = max_edge_layers;
 
+    @memset(device_params, 0);
+    @memset(&input_vstream_params, 0);
+    @memset(&output_vstream_params, 0);
+
 
     status = hlo.hailo_create_vdevice(null, &vdevice);
     assert(status == hlo.HAILO_SUCCESS);
diff --git a/yolov7.hef b/yolov7.hef
new file mode 100644
index 0000000..6af99a3
Binary files /dev/null and b/yolov7.hef differ