Update flake.nix to make mvn2nix depend on same nixpkgs as ourselves (makes transitive closure smaller).

flake.lock

@@ -20,8 +20,12 @@
     },
     "mvn2nix": {
       "inputs": {
-        "nixpkgs": "nixpkgs",
-        "utils": "utils"
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "utils": [
+          "flake-utils"
+        ]
       },
       "locked": {
         "lastModified": 1629170129,
@@ -38,22 +42,6 @@
       }
     },
     "nixpkgs": {
-      "locked": {
-        "lastModified": 1684049129,
-        "narHash": "sha256-7WB9LpnPNAS8oI7hMoHeKLNhRX7k3CI9uWBRSfmOCCE=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "0470f36b02ef01d4f43c641bbf07020bcab71bf1",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixos-21.05",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs_2": {
       "locked": {
         "lastModified": 1684049129,
         "narHash": "sha256-7WB9LpnPNAS8oI7hMoHeKLNhRX7k3CI9uWBRSfmOCCE=",
@@ -73,7 +61,7 @@
       "inputs": {
         "flake-utils": "flake-utils",
         "mvn2nix": "mvn2nix",
-        "nixpkgs": "nixpkgs_2"
+        "nixpkgs": "nixpkgs"
       }
     },
     "systems": {
@@ -90,39 +78,6 @@
         "repo": "default",
         "type": "github"
       }
-    },
-    "systems_2": {
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
-        "type": "github"
-      }
-    },
-    "utils": {
-      "inputs": {
-        "systems": "systems_2"
-      },
-      "locked": {
-        "lastModified": 1681202837,
-        "narHash": "sha256-H+Rh19JDwRtpVPAWp64F+rlEtxUWBAQW28eAi3SRSzg=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "cfacdce06f30d2b68473a46042957675eebb3401",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
     }
   },
   "root": "root",

flake.nix

@@ -2,8 +2,12 @@
   inputs = rec {
     nixpkgs.url = github:NixOS/nixpkgs/nixos-unstable;
     flake-utils.url = "github:numtide/flake-utils";
-    mvn2nix.url = "github:fzakaria/mvn2nix";
-    mvn2nix.inputs = { inherit nixpkgs; utils = flake-utils; };
+
+    mvn2nix = {
+      url = "github:fzakaria/mvn2nix";
+      inputs.nixpkgs.follows = "nixpkgs";
+      inputs.utils.follows = "flake-utils";
+    };
   };
 
   outputs = { nixpkgs, mvn2nix, flake-utils, ... }: