fix: use caddy module from nixos-unstable

flake.lock

@@ -229,7 +229,8 @@
         "nix-darwin": "nix-darwin",
         "nixos-flake": "nixos-flake",
         "nixpkgs": "nixpkgs",
-        "terranix": "terranix"
+        "terranix": "terranix",
+        "unstable": "unstable"
       }
     },
     "terranix": {
@@ -271,6 +272,22 @@
         "type": "github"
       }
     },
+    "unstable": {
+      "locked": {
+        "lastModified": 1698318101,
+        "narHash": "sha256-gUihHt3yPD7bVqg+k/UVHgngyaJ3DMEBchbymBMvK1E=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "63678e9f3d3afecfeafa0acead6239cdb447574c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "utils": {
       "locked": {
         "lastModified": 1667395993,

flake.nix

@@ -2,6 +2,7 @@
   inputs = {
     # Track channels with commits tested and built by hydra
     nixpkgs.url = "github:nixos/nixpkgs/nixos-23.05";
+    unstable.url = "github:nixos/nixpkgs/nixos-unstable";
 
     nix-darwin.url = "github:lnl7/nix-darwin/master";
     nix-darwin.inputs.nixpkgs.follows = "nixpkgs";

hosts/nachtigall/apps/caddy.nix

@@ -2,7 +2,7 @@
   config,
   lib,
   pkgs,
-  self,
+  flake,
   ...
 }: let
   maintenanceMode = {
@@ -40,6 +40,14 @@
     '';
   };
 in {
+  disabledModules = [
+    "services/web-servers/caddy/default.nix"
+  ];
+
+  imports = [
+    "${flake.inputs.unstable}/nixos/modules/services/web-servers/caddy/default.nix"
+  ];
+
   systemd.tmpfiles.rules = [
     "d '/data/srv/www/os/download/' 0750 hakkonaut hakkonaut - -"
   ];