feat(qemu): add qemu configuration

hosts/marpa/configuration.nix

@@ -26,10 +26,13 @@
         de = "gnome";
       };
     };
-    dev.docker = {
-      enable = true;
-      podman.enable = true;
-      autoprune.enable = true;
+    dev = {
+      docker = {
+        enable = true;
+        podman.enable = true;
+        autoprune.enable = true;
+      };
+      qemu.enable = true;
     };
     hardware = {
       amdgpu.enable = true;

system/dev/default.nix

@@ -1,3 +1,3 @@
 {
-  imports = [./docker.nix];
+  imports = [./docker.nix ./qemu.nix];
 }

system/dev/qemu.nix

@@ -0,0 +1,19 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.mySystem.dev.qemu;
+in {
+  options.mySystem.dev.qemu.enable = mkEnableOption "Enable QEMU";
+  config = mkIf cfg.enable {
+    environment.systemPackages = with pkgs; [
+      qemu
+      virt-manager
+    ];
+    systemd.tmpfiles.rules = [ "L+ /var/lib/qemu/firmware - - - - ${pkgs.qemu}/share/qemu/firmware" ];
+    boot.binfmt.emulatedSystems = [ "aarch64-linux" ];
+  };
+}

users/phundrak/packages.nix

@@ -75,7 +75,6 @@ with lib; {
     grype # Vulnerability scanner for container images and filesystems
     kicad # Working on my custom keyboard
     tectonic # better LaTeX engine
-    virt-manager
     zeal
 
     ## LSP servers