fix hydra build packages (#55)

* fix hydra build packages

* change build input

flake.lock

@@ -53,6 +53,22 @@
         "type": "github"
       }
     },
+    "flake-compat_2": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1673956053,
+        "narHash": "sha256-4gtG9iQuiKITOjNQQeQIpoIB6b16fm+504Ch3sNKLd8=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "35bb57c0c8d8b62bbfd284272c928ceb64ddbde9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
     "flake-utils": {
       "inputs": {
         "systems": [
@@ -93,6 +109,22 @@
         "type": "github"
       }
     },
+    "lowdown-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1633514407,
+        "narHash": "sha256-Dw32tiMjdK9t3ETl5fzGrutQTzh2rufgZV4A/BbxuD4=",
+        "owner": "kristapsdz",
+        "repo": "lowdown",
+        "rev": "d2c2b44ff6c27b936ec27358a2653caaef8f73b8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "kristapsdz",
+        "repo": "lowdown",
+        "type": "github"
+      }
+    },
     "mailserver": {
       "inputs": {
         "blobs": "blobs",
@@ -124,6 +156,30 @@
         "type": "gitlab"
       }
     },
+    "nix": {
+      "inputs": {
+        "flake-compat": "flake-compat_2",
+        "lowdown-src": "lowdown-src",
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "nixpkgs-regression": "nixpkgs-regression"
+      },
+      "locked": {
+        "lastModified": 1687956155,
+        "narHash": "sha256-nL3tSXLhXk5jyzX4aWpJvz3JdTyImK+0paRhQqx4f4A=",
+        "owner": "NixOS",
+        "repo": "nix",
+        "rev": "b8cb447a457a4a5e8b26143ba3c8cc5cc6caf0b7",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nix",
+        "type": "github"
+      }
+    },
     "nix-pre-commit": {
       "inputs": {
         "flake-utils": [
@@ -212,12 +268,29 @@
         "type": "github"
       }
     },
+    "nixpkgs-regression": {
+      "locked": {
+        "lastModified": 1643052045,
+        "narHash": "sha256-uGJ0VXIhWKGXxkeNnq4TvV3CIOkUJ3PAoLZ3HMzNVMw=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "215d4d0fd80ca5163643b03a33fde804a29cc1e2",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "215d4d0fd80ca5163643b03a33fde804a29cc1e2",
+        "type": "github"
+      }
+    },
     "root": {
       "inputs": {
         "fenix": "fenix",
         "flake-utils": "flake-utils",
         "home-manager": "home-manager",
         "mailserver": "mailserver",
+        "nix": "nix",
         "nix-pre-commit": "nix-pre-commit",
         "nixos-modules": "nixos-modules",
         "nixpkgs": "nixpkgs",