DRY nixpkgs config

flake.nix

@@ -24,14 +24,16 @@
   outputs = inputs@{ self, home-manager, nixpkgs, ... }:
     let
       system = "x86_64-linux";
+      # Add nixpkgs overlays and config here. They apply to system and home-manager builds.
       pkgs = import nixpkgs {
         inherit system;
+        config.allowUnfree = true;
         overlays = [
           (import inputs.emacs-overlay)
         ];
       };
       mkComputer = configurationNix: extraModules: nixpkgs.lib.nixosSystem {
-        inherit system;
+        inherit system pkgs;
         # Arguments to pass to all modules.
         specialArgs = { inherit system inputs; };
         modules = (

hosts/facade.nix

@@ -8,7 +8,6 @@
 
   swapDevices = [{ device = "/swapfile"; size = 2048; }];
 
-  nixpkgs.config.allowUnfree = true;
   nix = {
     package = pkgs.nixUnstable;
     extraOptions = ''

hosts/hetzner/ax101.nix

@@ -100,7 +100,6 @@
 
   };
 
-  nixpkgs.config.allowUnfree = true;
   nix = {
     package = pkgs.nixUnstable;
     extraOptions = ''

hosts/hetzner/ax61-nvme.nix

@@ -9,7 +9,7 @@
   boot.initrd.availableKernelModules = [ "nvme" "ahci" ];
   boot.initrd.kernelModules = [ "dm-snapshot" ];
   boot.kernelModules = [ "kvm-amd" ];
-  boot.extraModulePackages = [];
+  boot.extraModulePackages = [ ];
 
   fileSystems."/" =
     {
@@ -17,7 +17,7 @@
       fsType = "ext4";
     };
 
-  swapDevices = [];
+  swapDevices = [ ];
 
   nix.maxJobs = lib.mkDefault 32;
   powerManagement.cpuFreqGovernor = lib.mkDefault "ondemand";
@@ -99,7 +99,6 @@
     hostName = "ryzen9";
   };
 
-  nixpkgs.config.allowUnfree = true;
   nix = {
     package = pkgs.nixUnstable;
     extraOptions = ''

hosts/thick.nix

@@ -51,7 +51,6 @@
     Option "Xinerama" "off"
   '';
 
-  nixpkgs.config.allowUnfree = true;
   nix = {
     package = pkgs.nixFlakes;
     extraOptions = ''

hosts/thin.nix

@@ -38,7 +38,6 @@
   boot.kernelPackages = pkgs.linuxPackages_latest;
   boot.supportedFilesystems = [ "ntfs" ];
 
-  nixpkgs.config.allowUnfree = true;
   nix = {
     package = pkgs.nixFlakes;
     extraOptions = ''