inital support for sops + fomating

hosts/display/default.nix

@@ -1,6 +1,14 @@
-{ inputs, outputs, lib, config, pkgs, ... }: {
+{
+  inputs,
+  outputs,
+  lib,
+  config,
+  pkgs,
+  ...
+}: {
   imports = [
     inputs.nixos-hardware.nixosModules.raspberry-pi-4
+    inputs.sops-nix.nixosModules.sops
     ./hardware-configuration.nix
     ../pi-server
     ./kiosk.nix
@@ -10,7 +18,7 @@
   nixpkgs.overlays = [
     (final: super: {
       makeModulesClosure = x:
-        super.makeModulesClosure (x // { allowMissing = true; });
+        super.makeModulesClosure (x // {allowMissing = true;});
     })
   ];
 }