initial nixos install

configuration.nix

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+{ modulesPath, ... }: {
+  imports = [ (modulesPath + "/profiles/qemu-guest.nix") ];
+
+  boot.loader.grub = {
+    efiSupport = true;
+    efiInstallAsRemovable = true;
+  };
+
+  networking.hostName = "myserver";
+  networking.useDHCP = true;
+
+  services.openssh = {
+    enable = true;
+    settings.PasswordAuthentication = false;
+  };
+
+  users.users.root.openssh.authorizedKeys.keys = [
+    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPmPNXFUH+yVRbsvgl+51x6UkJfR2eQB9GTKlWKFg3dP freek@MacBookPro.localdomain"
+  ];
+
+  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+  nix.gc = {
+    automatic = true;
+    options = "--delete-older-than 14d";
+  };
+
+  system.stateVersion = "25.11";
+}

disk.nix

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+{
+  disko.devices.disk.main = {
+    device = "/dev/sda";
+    type = "disk";
+    content = {
+      type = "gpt";
+      partitions = {
+        boot = { size = "1M"; type = "EF02"; };
+        ESP = {
+          size = "512M";
+          type = "EF00";
+          content = {
+            type = "filesystem";
+            format = "vfat";
+            mountpoint = "/boot";
+          };
+        };
+        root = {
+          size = "100%";
+          content = {
+            type = "filesystem";
+            format = "ext4";
+            mountpoint = "/";
+          };
+        };
+      };
+    };
+  };
+}

flake.nix

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+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
+    disko.url = "github:nix-community/disko";
+    disko.inputs.nixpkgs.follows = "nixpkgs";
+  };
+
+  outputs = { nixpkgs, disko, ... }: {
+    nixosConfigurations.myserver = nixpkgs.lib.nixosSystem {
+      system = "x86_64-linux";
+      modules = [
+        disko.nixosModules.disko
+        ./disk.nix
+        ./configuration.nix
+      ];
+    };
+  };
+}