feat(nix): configure nh

common/system/default.nix

@@ -3,25 +3,35 @@
   pkgs,
   ...
 }: {
-  nix.gc = {
-    automatic = true;
-    options = "--delete-older-than 30d";
+  nix = {
+    gc = {
+      automatic = true;
+      options = "--delete-older-than 30d";
+    };
+    optimise.automatic = true;
+    settings = {
+      extra-experimental-features = [
+        "flakes"
+        "nix-command"
+      ];
+      keep-outputs = true;
+      log-lines = 25;
+      tarball-ttl = 43200;
+      trusted-users = [
+        "root"
+        config.my.user
+      ];
+    };
+    package = pkgs.nix;
   };
-  nix.optimise.automatic = true;
-  nix.settings = {
-    extra-experimental-features = [
-      "flakes"
-      "nix-command"
-    ];
-    keep-outputs = true;
-    log-lines = 25;
-    tarball-ttl = 43200;
-    trusted-users = [
-      "root"
-      config.my.user
-    ];
-  };
-  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;