Fix Keepass settings

AGENTS.md

@@ -0,0 +1,9 @@
+Use idiomatic nix.
+
+Before making changes, read the appropriate entries of the following manuals:
+- man configuration.nix
+- man home-configuration.nix
+
+Do not read the entire manual at once, instead search only for what you need.
+
+After editing nix configurations, always run  `nix flake check nixos/` to check for errors.

nixos/configuration.nix

@@ -76,6 +76,7 @@
   };
 
   home-manager = {
+    backupFileExtension = "~";
     extraSpecialArgs = { inherit inputs; };
     users = {
       "trude" = import ./home.nix;

nixos/home.nix

@@ -79,7 +79,7 @@
 
   home.sessionVariables = {
     EDITOR = "gnome-text-editor";
-    SSH_AUTH_SOCK = "$XDG_RUNTIME_DIR/ssh-agent";
+    SSH_AUTH_SOCK = "$XDG_RUNTIME_DIR/gcr/.ssh";
   };
 
   programs.git = {