test

flake.nix

@@ -33,8 +33,8 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
-    system_tools = {
-      url = "github:RichieCahill/system_tools";
+    microvm = {
+      url = "github:astro/microvm.nix";
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
@@ -47,6 +47,10 @@
       url = "github:Mic92/sops-nix";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+    system_tools = {
+      url = "github:RichieCahill/system_tools";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
   };
 
   outputs = {
@@ -56,6 +60,7 @@
     systems,
     nixos-cosmic,
     sops-nix,
+    microvm,
     ...
   } @ inputs: let
     inherit (self) outputs;
@@ -71,10 +76,35 @@
   in {
     inherit lib;
     overlays = import ./overlays {inherit inputs outputs;};
-
     devShells = forEachSystem (pkgs: import ./shell.nix {inherit pkgs;});
     formatter = forEachSystem (pkgs: pkgs.alejandra);
 
+    emulated-dev = nixpkgs.lib.nixosSystem {
+      # host system
+      system = "x86_64-linux";
+      modules = let
+        guestSystem = "aarch64-unknown-linux-gnu";
+        # you can use packages in the guest machine with cross system configuration
+        pkgs = import nixpkgs {
+          system = "x86_64-linux";
+          crossSystem.config = guestSystem;
+        };
+      in [
+        {nixpkgs.crossSystem.config = guestSystem;}
+        microvm.nixosModules.microvm
+        {
+          microvm = {
+            # you can choose what CPU will be emulated by qemu
+            cpu = "cortex-a53";
+            hypervisor = "qemu";
+          };
+          environment.systemPackages = with pkgs; [ cowsay htop ];
+          services.getty.autologinUser = "root";
+          system.stateVersion = "23.11";
+        }
+      ];
+    };
+
     nixosConfigurations = {
       bob = lib.nixosSystem {
         modules = [