diff --git a/flake.nix b/flake.nix
index 3cb6a2e..c90bed3 100644
--- a/flake.nix
+++ b/flake.nix
@@ -24,58 +24,69 @@
             packages = with pkgs; [
               corepack_latest
               nodejs
+              cargo
+              clippy
             ];
           };
         }
       );
+      packages = forSystems (
+        system:
+        let
+          pkgs = pkgs' system;
+        in
+        {
+          fmt = pkgs.treefmt.withConfig {
+            runtimeInputs = with pkgs; [
+              nixfmt-rfc-style
+              nodePackages.prettier
+              rustfmt
+            ];
+            settings = {
+              tree-root-file = ".git/index";
+              formatter = {
+                nixfmt = {
+                  command = "nixfmt";
+                  includes = [ "*.nix" ];
+                };
+                rustfmt = {
+                  command = "rustfmt";
+                  options = [
+                    "--edition"
+                    "2018"
+                  ];
+                  includes = [ "*.rs" ];
+                };
+                prettier = {
+                  command = "prettier";
+                  options = [ "--write" ];
+                  excludes = [ "pnpm-lock.yaml" ];
+                  includes = [
+                    "*.css"
+                    "*.html"
+                    "*.js"
+                    "*.json"
+                    "*.jsx"
+                    "*.md"
+                    "*.mdx"
+                    "*.scss"
+                    "*.ts"
+                    "*.yaml"
+                    "*.yml"
+                    "*.vue"
+                  ];
+                };
+              };
+            };
+          };
+        }
+      );
       formatter = forSystems (
         system:
         let
           pkgs = pkgs' system;
         in
-        pkgs.treefmt.withConfig {
-          runtimeInputs = with pkgs; [
-            nixfmt-rfc-style
-            nodePackages.prettier
-            rustfmt
-          ];
-          settings = {
-            tree-root-file = ".git/index";
-            formatter = {
-              nixfmt = {
-                command = "nixfmt";
-                includes = [ "*.nix" ];
-              };
-              rustfmt = {
-                command = "rustfmt";
-                options = [
-                  "--edition"
-                  "2018"
-                ];
-                includes = [ "*.rs" ];
-              };
-              prettier = {
-                command = "prettier";
-                options = [ "--write" ];
-                excludes = [ "pnpm-lock.yaml" ];
-                includes = [
-                  "*.css"
-                  "*.html"
-                  "*.js"
-                  "*.json"
-                  "*.jsx"
-                  "*.md"
-                  "*.mdx"
-                  "*.scss"
-                  "*.ts"
-                  "*.yaml"
-                  "*.yml"
-                  "*.vue"
-                ];
-              };
-            };
-          };
-        }
+        self.outputs.packages.${system}.fmt
       );
     };
 }