Sops based on ssh keys

nixos/modules/impermanence/default.nix

@@ -4,7 +4,6 @@
   inputs,
   ...
 }: let
-  isBtrfs = config.fileSystems."/".fsType == "btrfs";
 in {
   imports = [
     inputs.impermanence.nixosModules.impermanence
@@ -48,32 +47,4 @@ in {
   ];
 
   programs.fuse.userAllowOther = true;
-  boot.initrd.postDeviceCommands = lib.mkAfter (
-    if isBtrfs
-    then ''
-      mkdir /btrfs_tmp
-      mount /dev/root_vg/root /btrfs_tmp
-      if [[ -e /btrfs_tmp/root ]]; then
-          mkdir -p /btrfs_tmp/old_roots
-          timestamp=$(date --date="@$(stat -c %Y /btrfs_tmp/root)" "+%Y-%m-%-d_%H:%M:%S")
-          mv /btrfs_tmp/root "/btrfs_tmp/old_roots/$timestamp"
-      fi
-
-      delete_subvolume_recursively() {
-          IFS=$'\n'
-          for i in $(btrfs subvolume list -o "$1" | cut -f 9- -d ' '); do
-              delete_subvolume_recursively "/btrfs_tmp/$i"
-          done
-          btrfs subvolume delete "$1"
-      }
-
-      for i in $(find /btrfs_tmp/old_roots/ -maxdepth 1 -mtime +30); do
-          delete_subvolume_recursively "$i"
-      done
-
-      btrfs subvolume create /btrfs_tmp/root
-      umount /btrfs_tmp
-    ''
-    else ''''
-  );
 }