diff --git a/README.md b/README.md
index 4b55506..4467391 100644
--- a/README.md
+++ b/README.md
@@ -46,3 +46,19 @@ Autodetection is a bash-spaghetti, so you need to check results. BTW it's just a
 ## Close VM
 
     $ pkill.... :)
+
+# App description
+
+    $ cat nix/chromium.nix
+    {pkgs, ...}:
+    {
+      imports = [
+        <nixpkgs/nixos/modules/virtualisation/qemu-vm.nix>
+        <nix/base.nix>
+      ];
+
+      environment.systemPackages = [ pkgs.chromium ];
+      services.xserver.displayManager.sessionCommands = "while [ 1 ]; do ${pkgs.chromium}/bin/chromium; done &";
+    }
+
+For create new app you should add package name (search at https://nixos.org/nixos/packages.html) and path to binary (typically same as package name).