added sops tools in prep for using secrets.

flake.lock

@@ -280,6 +280,22 @@
         "type": "github"
       }
     },
+    "nixpkgs-stable": {
+      "locked": {
+        "lastModified": 1716655032,
+        "narHash": "sha256-kQ25DAiCGigsNR/Quxm3v+JGXAEXZ8I7RAF4U94bGzE=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "59a450646ec8ee0397f5fa54a08573e8240eb91f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "release-23.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "nixvim": {
       "inputs": {
         "devshell": "devshell",
@@ -347,7 +363,29 @@
         "home-manager": "home-manager",
         "nixos-wsl": "nixos-wsl",
         "nixpkgs": "nixpkgs",
-        "nixvim": "nixvim"
+        "nixvim": "nixvim",
+        "sops-nix": "sops-nix"
+      }
+    },
+    "sops-nix": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "nixpkgs-stable": "nixpkgs-stable"
+      },
+      "locked": {
+        "lastModified": 1716692524,
+        "narHash": "sha256-sALodaA7Zkp/JD6ehgwc0UCBrSBfB4cX66uFGTsqeFU=",
+        "owner": "mic92",
+        "repo": "sops-nix",
+        "rev": "962797a8d7f15ed7033031731d0bb77244839960",
+        "type": "github"
+      },
+      "original": {
+        "owner": "mic92",
+        "repo": "sops-nix",
+        "type": "github"
       }
     },
     "systems": {