Improve flake inputs

flake.lock

@@ -219,48 +219,16 @@
     },
     "nixpkgs-stable": {
       "locked": {
-        "lastModified": 1720535198,
-        "narHash": "sha256-zwVvxrdIzralnSbcpghA92tWu2DV2lwv89xZc8MTrbg=",
+        "lastModified": 1729181673,
+        "narHash": "sha256-LDiPhQ3l+fBjRATNtnuDZsBS7hqoBtPkKBkhpoBHv3I=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "205fd4226592cc83fd4c0885a3e4c9c400efabb5",
+        "rev": "4eb33fe664af7b41a4c446f87d20c9a0a6321fa3",
         "type": "github"
       },
       "original": {
         "owner": "nixos",
-        "ref": "nixos-23.11",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs-stable_2": {
-      "locked": {
-        "lastModified": 1729357638,
-        "narHash": "sha256-66RHecx+zohbZwJVEPF7uuwHeqf8rykZTMCTqIrOew4=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "bb8c2cf7ea0dd2e18a52746b2c3a5b0c73b93c22",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "release-24.05",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs_2": {
-      "locked": {
-        "lastModified": 1729265718,
-        "narHash": "sha256-4HQI+6LsO3kpWTYuVGIzhJs1cetFcwT7quWCk/6rqeo=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "ccc0c2126893dd20963580b6478d1a10a4512185",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-unstable",
+        "ref": "nixos-24.05",
         "repo": "nixpkgs",
         "type": "github"
       }
@@ -352,8 +320,12 @@
     },
     "sops-nix": {
       "inputs": {
-        "nixpkgs": "nixpkgs_2",
-        "nixpkgs-stable": "nixpkgs-stable_2"
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "nixpkgs-stable": [
+          "nixpkgs-stable"
+        ]
       },
       "locked": {
         "lastModified": 1729394972,