refactor(nixos): derive RomM virtual host

configs/nixos/guests/romm.nix

@@ -53,12 +53,6 @@ in
       description = "Host path mounted as RomM's user assets.";
     };
 
-    virtualHost = lib.mkOption {
-      type = lib.types.str;
-      example = "romm.example.org";
-      description = "Public host name configured in RomM's local nginx.";
-    };
-
     igdbClientIdSecret = lib.mkOption {
       type = lib.types.str;
       default = "services/romm/igdb/client-id";
@@ -151,7 +145,7 @@ in
           database.createLocally = true;
           redis.createLocally = true;
           watcher.enable = true;
-          nginx.virtualHost = cfg.virtualHost;
+          nginx.virtualHost = cfg.reverseProxy.route.domain;
           inherit environmentFile;
         };
 

configs/nixos/hosts/pikachu/default.nix

@@ -98,7 +98,6 @@
     romsPath = "/pikachu/media/games/emulation/roms";
     biosPath = "/pikachu/media/games/emulation/bios";
     usersPath = "/pikachu/media/games/emulation/users";
-    virtualHost = "games.alexion.dev";
     reverseProxy = {
       enable = true;
       route = {