add Caddyfile for testing

Caddyfile

@@ -0,0 +1,18 @@
+{
+	auto_https off
+}
+
+:8080 {
+	root * ./result/public
+	encode gzip
+	file_server
+
+	# redirect to your custom 404 page
+	handle_errors {
+		@404 {
+			expression {http.error.status_code} == 404
+		}
+		rewrite @404 /404.html
+		file_server
+	}
+}

flake.nix

@@ -13,12 +13,12 @@
     supportedSystems = ["x86_64-linux" "aarch64-linux"];
     forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
     pkgs = forAllSystems (system: nixpkgs.legacyPackages.${system});
-    url = "https://project-cloud.net";
+    url_deploy = "https://project-cloud.net";
+    url_local = "http://localhost:8080";
     name = "project-cloud";
     theme = theme_anemone;
-  in {
-    packages = forAllSystems (system: {
-      default = pkgs.${system}.stdenv.mkDerivation {
+    package = system: url:
+      pkgs.${system}.stdenv.mkDerivation {
         inherit name;
         nativeBuildInputs = with pkgs.${system}; [zola];
 
@@ -35,11 +35,16 @@
           cp -r public/ $out/
         '';
       };
+  in {
+    packages = forAllSystems (system: rec {
+      project-cloud = package system url_deploy;
+      test = package system url_local;
+      default = project-cloud;
     });
 
     devShells = forAllSystems (system: {
       default = pkgs.${system}.mkShellNoCC {
-        packages = with pkgs.${system}; [zola];
+        packages = with pkgs.${system}; [zola caddy];
       };
     });
   };