Remove unneeded flake inputs

flake.lock

@@ -2,12 +2,14 @@
   "nodes": {
     "agenix": {
       "inputs": {
-        "darwin": "darwin",
-        "home-manager": "home-manager",
+        "darwin": [],
+        "home-manager": [],
         "nixpkgs": [
           "nixpkgs"
         ],
-        "systems": "systems"
+        "systems": [
+          "systems"
+        ]
       },
       "locked": {
         "lastModified": 1750173260,
@@ -23,49 +25,6 @@
         "type": "github"
       }
     },
-    "darwin": {
-      "inputs": {
-        "nixpkgs": [
-          "agenix",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1744478979,
-        "narHash": "sha256-dyN+teG9G82G+m+PX/aSAagkC+vUv0SgUw3XkPhQodQ=",
-        "owner": "lnl7",
-        "repo": "nix-darwin",
-        "rev": "43975d782b418ebf4969e9ccba82466728c2851b",
-        "type": "github"
-      },
-      "original": {
-        "owner": "lnl7",
-        "ref": "master",
-        "repo": "nix-darwin",
-        "type": "github"
-      }
-    },
-    "home-manager": {
-      "inputs": {
-        "nixpkgs": [
-          "agenix",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1745494811,
-        "narHash": "sha256-YZCh2o9Ua1n9uCvrvi5pRxtuVNml8X2a03qIFfRKpFs=",
-        "owner": "nix-community",
-        "repo": "home-manager",
-        "rev": "abfad3d2958c9e6300a883bd443512c55dfeb1be",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-community",
-        "repo": "home-manager",
-        "type": "github"
-      }
-    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1752436162,
@@ -85,23 +44,21 @@
     "root": {
       "inputs": {
         "agenix": "agenix",
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": "nixpkgs",
+        "systems": "systems"
       }
     },
     "systems": {
+      "flake": false,
       "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
+        "path": "./pkgs/systems.nix",
+        "type": "path"
       },
       "original": {
-        "owner": "nix-systems",
-        "repo": "default",
-        "type": "github"
-      }
+        "path": "./pkgs/systems.nix",
+        "type": "path"
+      },
+      "parent": []
     }
   },
   "root": "root",

flake.nix

@@ -1,8 +1,15 @@
 {
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
+
+    systems.url = "path:./pkgs/systems.nix";
+    systems.flake = false;
+
     agenix.url = "github:ryantm/agenix";
     agenix.inputs.nixpkgs.follows = "nixpkgs";
+    agenix.inputs.systems.follows = "systems";
+    agenix.inputs.darwin.follows = "";
+    agenix.inputs.home-manager.follows = "";
   };
 
   outputs = { self, nixpkgs, agenix, ... }:

pkgs/systems.nix

@@ -0,0 +1,4 @@
+# See https://github.com/nix-systems/nix-systems
+[
+  "x86_64-linux"
+]