got impermanence to wipe drive

flake.lock

@@ -127,6 +127,21 @@
         "type": "github"
       }
     },
+    "impermanence": {
+      "locked": {
+        "lastModified": 1731242966,
+        "narHash": "sha256-B3C3JLbGw0FtLSWCjBxU961gLNv+BOOBC6WvstKLYMw=",
+        "owner": "nix-community",
+        "repo": "impermanence",
+        "rev": "3ed3f0eaae9fcc0a8331e77e9319c8a4abd8a71a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "impermanence",
+        "type": "github"
+      }
+    },
     "nix-darwin": {
       "inputs": {
         "nixpkgs": [
@@ -207,6 +222,7 @@
         "firefox-addons": "firefox-addons",
         "flake-compat": "flake-compat",
         "home-manager": "home-manager",
+        "impermanence": "impermanence",
         "nix-darwin": "nix-darwin",
         "nix-vscode-extensions": "nix-vscode-extensions",
         "nixos-hardware": "nixos-hardware",