feat(nix): configure nh

common/system/default.nix

@@ -3,12 +3,13 @@
   pkgs,
   ...
 }: {
-  nix.gc = {
+  nix = {
+    gc = {
       automatic = true;
       options = "--delete-older-than 30d";
     };
-  nix.optimise.automatic = true;
+    optimise.automatic = true;
-  nix.settings = {
+    settings = {
       extra-experimental-features = [
         "flakes"
         "nix-command"
@@ -21,7 +22,16 @@
         config.my.user
       ];
     };
-  nix.package = pkgs.nix;
+    package = pkgs.nix;
+  };
+
+  environment.systemPackages = with pkgs; [
+    unstable.nh
+  ];
+
+  # TODO: make sure hostnames always match flake output name
+  environment.variables."NH_FLAKE" = ''${config.hm.home.homeDirectory}/Projects/nix-dots'';
+
   programs.zsh.enable = true;
   time.timeZone = "America/New_York";
 }

flakes/darwin.nix

@@ -30,7 +30,7 @@
     );
 in {
   flake.darwinConfigurations = {
-    mac = mkDarwin {
+    neptune = mkDarwin {
       modules = [
         {
           hm = import ../user/environments/mac/home.nix;