explicitly import nixpkgs-unstable

flake.lock

@@ -456,24 +456,7 @@
     },
     "flake-utils_3": {
       "inputs": {
-        "systems": "systems_3"
-      },
-      "locked": {
-        "lastModified": 1731533236,
-        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
-        "type": "github"
-      },
-      "original": {
-        "id": "flake-utils",
-        "type": "indirect"
-      }
-    },
-    "flake-utils_4": {
-      "inputs": {
-        "systems": "systems_5"
+        "systems": "systems_4"
       },
       "locked": {
         "lastModified": 1731533236,
@@ -1393,7 +1376,6 @@
         "agenix": "agenix",
         "autorenkalender": "autorenkalender",
         "coptic-dictionary": "coptic-dictionary",
-        "flake-utils": "flake-utils_3",
         "home-manager": "home-manager_2",
         "menstruation-backend": "menstruation-backend_2",
         "menstruation-telegram": "menstruation-telegram_2",
@@ -1611,7 +1593,7 @@
           "nixpkgs"
         ],
         "nur": "nur_3",
-        "systems": "systems_4",
+        "systems": "systems_3",
         "tinted-foot": "tinted-foot",
         "tinted-kitty": "tinted-kitty",
         "tinted-schemes": "tinted-schemes",
@@ -1693,21 +1675,6 @@
         "type": "github"
       }
     },
-    "systems_5": {
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
-        "type": "github"
-      }
-    },
     "telebots": {
       "inputs": {
         "flake-utils": "flake-utils_2",
@@ -1959,7 +1926,7 @@
     },
     "wallpaper-generator_2": {
       "inputs": {
-        "flake-utils": "flake-utils_4",
+        "flake-utils": "flake-utils_3",
         "nixpkgs": "nixpkgs_13"
       },
       "locked": {

flake.nix

@@ -160,6 +160,7 @@
           niveumSpecialArgs = system: {
             unstablePackages = import nixpkgs-unstable {
               inherit system;
+              overlays = [];
               config.allowUnfreePredicate =
                 pkg:
                 builtins.elem (nixpkgs-unstable.lib.getName pkg) [