resolve NixOS build warnings

flake.nix

@@ -5,7 +5,6 @@
     };
     nixos-hardware = {
       url = "github:NixOS/nixos-hardware/master";
-      inputs.nixpkgs.follows = "nixpkgs";
     };
     disko = {
       url = "github:nix-community/disko/latest";

hosts/andromache/default.nix

@@ -104,16 +104,18 @@ in
   services.syncthing = {
     enable = true;
     openDefaultPorts = true;
+    settings = {
+      devices = {
+        # "device1" = {
+        #   id = "DEVICE-ID-GOES-HERE";
+        # };
+      };
       folders = {
         "/home/${username}/sync" = {
           id = "sync";
           devices = [ ];
         };
       };
-    devices = {
-      # "device1" = {
-      #   id = "DEVICE-ID-GOES-HERE";
-      # };
     };
   };