Fix sops-nix failure after reboot

/home partition of lvm wasn't mounted and sops-nix couldn't find the key
in that unmounted partition

hosts/franz/default.nix

@@ -1,13 +1,11 @@
-{
-  inputs,
-  outputs,
-  lib,
-  config,
-  pkgs,
-  ...
-}: let
+{ inputs
+, outputs
+, ...
+}:
+let
   vars = import ../../vars.nix;
-in {
+in
+{
   imports = [
     inputs.hardware.nixosModules.common-pc-ssd
     inputs.disko.nixosModules.default
@@ -40,13 +38,15 @@ in {
   systemd.services.NetworkManager-wait-online.enable = false;
 
   # Prevent zfs from being automounted by fstab auto discovery & zfs
-  fileSystems."/storage/dataset".options = ["noauto"];
-  fileSystems."/storage".options = ["noauto"];
+  fileSystems = {
+    "/storage/dataset".options = [ "noauto" ];
+    "/storage".options = [ "noauto" ];
 
-  fileSystems."/home/ghoscht/.zfs" = {
+    "/home/ghoscht/.zfs" = {
       device = "/dev/disk/by-label/SECRET_KEYS";
       fsType = "vfat";
     };
+  };
 
   users.mutableUsers = true;
   users.users.${vars.user} = {

hosts/franz/sops.nix

@@ -1,18 +1,16 @@
-{
-  pkgs,
-  inputs,
-  config,
-  ...
-}: let
-  vars = import ../../vars.nix;
-in {
+{ pkgs
+, inputs
+, ...
+}: {
   imports = [
     inputs.sops-nix.nixosModules.sops
   ];
 
   environment.systemPackages = with pkgs; [ sops ];
 
-  sops.defaultSopsFile = ../../secrets/franz.yaml;
-  sops.defaultSopsFormat = "yaml";
-  sops.age.keyFile = "/home/${vars.user}/.config/sops/age/keys.txt";
+  sops = {
+    defaultSopsFile = ../../secrets/franz.yaml;
+    defaultSopsFormat = "yaml";
+    age.keyFile = "/sops-nix/sops.txt";
+  };
 }