feat(marr): enable openssh

hosts/marr/configuration.nix

@@ -3,6 +3,7 @@
   pkgs,
   inputs,
   username,
+  pubkeys,
   ...
 }:
 {
@@ -147,6 +148,7 @@
         "dialout" # Necessary for serial port interactions
       ];
       shell = pkgs.fish;
+      openssh.authorizedKeys.keys = [ pubkeys.ny ];
     };
   };
 
@@ -159,6 +161,10 @@
 
   security.polkit.enable = true;
 
+  services.openssh = {
+    enable = true;
+  };
+
   # List packages installed in system profile. To search, run:
   # $ nix search wget
   environment.systemPackages = with pkgs; [