flake/nixosConfigurations: enable home-manger file backups by default

If there's an existing file in its way, home-manager will move it to
<file-name>.backup

1 files changed, 1 insertions, 0 deletions

diff --git a/flake/nixosConfigurations/default.nix b/flake/nixosConfigurations/default.nix
index 2be0ec1..b303335 100644
--- a/flake/nixosConfigurations/default.nix
+++ b/flake/nixosConfigurations/default.nix
@@ -25,6 +25,7 @@
     agenix.nixosModules.default
     {
       home-manager = {
+        backupFileExtension = "backup";
         useGlobalPkgs = true;
         useUserPackages = true;
         users.sils = import ../../hm;