add prebuilt nix-index db

flake.lock

@@ -454,6 +454,26 @@
         "type": "github"
       }
     },
+    "nix-index-database": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1685764721,
+        "narHash": "sha256-CIy1iwQTEKfZRrid4gBLA+r/LPGA9IUFo0lKJVyECGI=",
+        "owner": "Mic92",
+        "repo": "nix-index-database",
+        "rev": "669ca1f2e2bc401abab6b837ae9c51503edc9b49",
+        "type": "github"
+      },
+      "original": {
+        "owner": "Mic92",
+        "repo": "nix-index-database",
+        "type": "github"
+      }
+    },
     "nix-rice": {
       "inputs": {
         "flake-compat": "flake-compat_3",
@@ -640,6 +660,7 @@
         "helix": "helix",
         "home-manager": "home-manager",
         "hyprland": "hyprland",
+        "nix-index-database": "nix-index-database",
         "nix-rice": "nix-rice",
         "nixpkgs": "nixpkgs_3",
         "nur": "nur",