feat(manifest): add hephaestus

nix/manifest.nix

@@ -7,11 +7,18 @@
       shell = "fish";
       pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILdsZyY3gu8IGB8MzMnLdh+ClDxQQ2RYG9rkeetIKq8n rafiq";
     };
-    hosts.darwin.venus = {
+    hosts = {
+      darwin = {
+        venus = {
           graphical = true;
           machine.platform = "intel";
         };
-    hosts.nixos = {
+        hephaestus = {
+          graphical = true;
+          machine.platform = "apple-silicon";
+        };
+      };
+      nixos = {
         nemesis = {
           graphical = true;
           machine = {
@@ -93,4 +100,5 @@
         };
       };
     };
+  };
 }

nix/modules/machine/platform.nix

@@ -21,5 +21,4 @@
     {
       nixpkgs.hostPlatform = "${arch}-darwin";
     };
-
 }