Declare hostname explicitly

flake.nix

@@ -13,24 +13,23 @@
 
   outputs = inputs@{ self, nixpkgs, home-manager, microvm, ... }:
     let
-      hostName = "nixos";
       system = "x86_64-linux";
       username = "tbarnouin";
     in
     {
       nixosConfigurations = {
-        ${hostName} = nixpkgs.lib.nixosSystem {
+        nixos-hypervisor = nixpkgs.lib.nixosSystem {
           inherit system;
           modules = [
-            ./hosts/${hostName}/configuration.nix
+            ./hosts/nixos-hypervisor/configuration.nix
             {
-              networking.hostName = hostName;
+              networking.hostName = "nixos-hypervisor";
             }
             home-manager.nixosModules.home-manager
             {
               home-manager.useGlobalPkgs = true;
               home-manager.useUserPackages = true;
-              home-manager.users.${username} = import ./hosts/${hostName}/home.nix;
+              home-manager.users.${username} = import ./hosts/nixos-hypervisor/home.nix;
             }
             microvm.nixosModules.host
             {