Fix

modules/desktop/run0.nix

@@ -1,4 +1,5 @@
 {
+  # TODO: Server too
   security = {
     polkit.persistentAuthentication = true;
     run0-sudo-shim.enable = true;

modules/server/boot.nix

@@ -0,0 +1,8 @@
+{modulesPath, ...}: {
+  imports = [(modulesPath + "/installer/scan/not-detected.nix") (modulesPath + "/profiles/qemu-guest.nix")];
+  boot.loader.grub = {
+    enable = true;
+    efiSupport = true;
+    efiInstallAsRemovable = true;
+  };
+}

modules/server/disko.nix

@@ -0,0 +1,34 @@
+{inputs, ...}: {
+  imports = [inputs.disko.nixosModules.disko];
+  disko.devices.disk.main = {
+    type = "disk";
+    device = "/dev/sda";
+    content = {
+      type = "gpt";
+      partitions = {
+        boot = {
+          size = "1M";
+          type = "EF02"; # for grub MBR
+        };
+        ESP = {
+          size = "1G";
+          type = "EF00";
+          content = {
+            type = "filesystem";
+            format = "vfat";
+            mountpoint = "/boot";
+            mountOptions = ["umask=0077"];
+          };
+        };
+        root = {
+          size = "100%";
+          content = {
+            type = "filesystem";
+            format = "ext4";
+            mountpoint = "/";
+          };
+        };
+      };
+    };
+  };
+}