flake: impermanence nixpkgs follow nixpkgs

flake.lock

@@ -233,7 +233,9 @@
     "impermanence": {
       "inputs": {
         "home-manager": "home-manager_2",
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": [
+          "nixpkgs"
+        ]
       },
       "locked": {
         "lastModified": 1767822991,
@@ -311,22 +313,6 @@
       }
     },
     "nixpkgs": {
-      "locked": {
-        "lastModified": 1748026106,
-        "narHash": "sha256-6m1Y3/4pVw1RWTsrkAK2VMYSzG4MMIj7sqUy7o8th1o=",
-        "owner": "nixos",
-        "repo": "nixpkgs",
-        "rev": "063f43f2dbdef86376cc29ad646c45c46e93234c",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nixos",
-        "ref": "nixos-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs_2": {
       "locked": {
         "lastModified": 1768621446,
         "narHash": "sha256-6YwHV1cjv6arXdF/PQc365h1j+Qje3Pydk501Rm4Q+4=",
@@ -342,7 +328,7 @@
         "type": "github"
       }
     },
-    "nixpkgs_3": {
+    "nixpkgs_2": {
       "locked": {
         "lastModified": 1764517877,
         "narHash": "sha256-pp3uT4hHijIC8JUK5MEqeAWmParJrgBVzHLNfJDZxg4=",
@@ -391,7 +377,7 @@
         "lanzaboote": "lanzaboote",
         "nix-minecraft": "nix-minecraft",
         "nixos-hardware": "nixos-hardware",
-        "nixpkgs": "nixpkgs_2",
+        "nixpkgs": "nixpkgs",
         "senior_project-website": "senior_project-website",
         "srvos": "srvos",
         "trackerlist": "trackerlist",
@@ -606,7 +592,7 @@
     "ytbn-graphing-software": {
       "inputs": {
         "flake-utils": "flake-utils_2",
-        "nixpkgs": "nixpkgs_3",
+        "nixpkgs": "nixpkgs_2",
         "rust-overlay": "rust-overlay_2"
       },
       "locked": {

flake.nix

@@ -40,6 +40,7 @@
 
     impermanence = {
       url = "github:nix-community/impermanence";
+      inputs.nixpkgs.follows = "nixpkgs";
     };
 
     agenix = {