diff --git a/prezentace.md b/prezentace.md
index 7da9b5e..d171960 100644
--- a/prezentace.md
+++ b/prezentace.md
@@ -107,7 +107,7 @@ nix flake show github:kamadorueda/alejandra
       nixos = nixpkgs.lib.nixosSystem {
         system = "x86_64-linux";
         modules = [
-	        ./configuration.nix
+          ./configuration.nix
           home-manager.nixosModules.home-manager
           {
             home-manager.useGlobalPkgs = false;
@@ -163,9 +163,9 @@ nix flake show github:kamadorueda/alejandra
   boot.loader.efi.canTouchEfiVariables = true;
   users.users.nixFreak = {
     isNormalUser = true;
-    extraGroups = ["wheel"]; # Enable ‘sudo’ for the user.
+    extraGroups = ["wheel"];
   };
-  system.stateVersion = "25.05"; # Did you read the comment?
+  system.stateVersion = "25.05";
 }
 ```
 
@@ -179,11 +179,11 @@ nix flake show github:kamadorueda/alejandra
 * `nix flake update [home-manager]` - aktualizace jednoho vstupu
 
 ```nix
-inputs = {
-    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
-    nixpkgs-stable.url = "github:nixos/nixpkgs/nixos-24.11";
-    nixpkgs-current = "github:nixos/nixpkgs?ref=3058cf84bce1aba7b1820cb24319a171572217ba-dirty";
-}
+  inputs = {
+      nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+      nixpkgs-stable.url = "github:nixos/nixpkgs/nixos-24.11";
+      nixpkgs-current = "github:nixos/nixpkgs?ref=3058cf84bce1aba7b1820cb24319a171572217ba-dirty";
+  }
 ```
 
 ---