add nixos module

flake.nix

@@ -6,8 +6,26 @@
     flake-utils.url = "github:numtide/flake-utils";
   };
 
-  outputs = { self, nixpkgs, flake-utils }:
+  outputs =
-    flake-utils.lib.eachDefaultSystem (system:
+    {
+      self,
+      nixpkgs,
+      flake-utils,
+    }:
+    {
+      nixosModules.default =
+        {
+          pkgs,
+          ...
+        }:
+        {
+          config = {
+            environment.systemPackages = [ self.packages.${pkgs.system}.qvm ];
+          };
+        };
+    }
+    // flake-utils.lib.eachDefaultSystem (
+      system:
       let
         pkgs = import nixpkgs { inherit system; };
 
@@ -52,7 +70,8 @@
             # Wrap all scripts with PATH containing required dependencies
             for script in $out/bin/*; do
               wrapProgram "$script" \
-                --prefix PATH : ${pkgs.lib.makeBinPath [
+                --prefix PATH : ${
+                  pkgs.lib.makeBinPath [
                     pkgs.qemu
                     pkgs.openssh
                     pkgs.jq
@@ -64,7 +83,8 @@
                     pkgs.bc
                     pkgs.procps
                     pkgs.sshpass
-                ]} \
+                  ]
+                } \
                 --set QVM_LIB_DIR "$out/lib/qvm"
             done
 
@@ -75,13 +95,14 @@
             description = "Quick development VMs for AI-assisted workflows";
             homepage = "https://github.com/josh/qvm";
             license = licenses.mit;
-            maintainers = [];
+            maintainers = [ ];
             platforms = platforms.linux;
             mainProgram = "qvm";
           };
         };
 
-      in {
+      in
+      {
         packages = {
           inherit qvm;
           default = qvm;