flake.nix

@@ -21,18 +21,19 @@
       configureNixSystem = hostname: nixpkgs.lib.nixosSystem {
         system = "x86_64-linux";
         modules = [
-          # Host specific configuration
-          ./hosts/${hostname}/configuration.nix
-
           # Common settings for all hosts
           ({ pkgs, ... }: import ./nixos_common.nix
             { inherit inputs; inherit pkgs; })
 
+          # Host specific configuration
+          ./hosts/${hostname}/configuration.nix
+
           # home-manager
           home-manager.nixosModules.home-manager
           ({ ... }: import ./home-manager.nix { inherit inputs; })
         ];
       };
+
     in
     {
       nixosConfigurations = {

hosts/Shire/configuration.nix

@@ -1,4 +1,4 @@
-{ ... }:
+{ config, ... }:
 
 {
   imports = [
@@ -8,5 +8,14 @@
 
   networking.hostName = "Shire";
 
-  # TODO
+  boot = {
+    kernelParams = config.boot.kernelParams ++ [
+      "intel_idle.max_cstate=1"
+    ];
+    initrd.unl0kr.enable = true;
+
+    # Does not work with unl0kr now
+    # https://github.com/NixOS/nixpkgs/issues/291935
+    plymouth.enable = false;
+  };
 }