diff --git a/flake.lock b/flake.lock
index a64839c..01b6f70 100644
--- a/flake.lock
+++ b/flake.lock
@@ -18,24 +18,6 @@
         "type": "github"
       }
     },
-    "flake-utils_2": {
-      "inputs": {
-        "systems": "systems_2"
-      },
-      "locked": {
-        "lastModified": 1705309234,
-        "narHash": "sha256-uNRRNRKmJyCRC/8y1RqBkqWBLM034y4qN7EprSdmgyA=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "1ef2e671c3b0c19053962c07dbda38332dcebf26",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1706550542,
@@ -70,14 +52,13 @@
     },
     "root": {
       "inputs": {
-        "flake-utils": "flake-utils",
         "nixpkgs": "nixpkgs",
         "rust-overlay": "rust-overlay"
       }
     },
     "rust-overlay": {
       "inputs": {
-        "flake-utils": "flake-utils_2",
+        "flake-utils": "flake-utils",
         "nixpkgs": "nixpkgs_2"
       },
       "locked": {
@@ -108,21 +89,6 @@
         "repo": "default",
         "type": "github"
       }
-    },
-    "systems_2": {
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
-        "type": "github"
-      }
     }
   },
   "root": "root",
diff --git a/flake.nix b/flake.nix
index 488f650..90b5e82 100644
--- a/flake.nix
+++ b/flake.nix
@@ -4,22 +4,24 @@
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
     rust-overlay.url = "github:oxalica/rust-overlay";
-    flake-utils.url = "github:numtide/flake-utils";
   };
 
-  outputs = { self, nixpkgs, rust-overlay, flake-utils, ... }:
-    flake-utils.lib.eachDefaultSystem (system:
-      let
-        overlays = [ (import rust-overlay) ];
-        pkgs = import nixpkgs {
-          inherit system overlays;
-        };
-
-      in
-      with pkgs;
-      {
-        devShells.default = mkShell {
-          buildInputs = [
+  outputs = {
+    nixpkgs,
+    rust-overlay,
+    ...
+  }: let
+    systems = ["x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin"];
+    forEachSystem = nixpkgs.lib.genAttrs systems;
+  in {
+    devShells = forEachSystem (
+      system: let
+        overlays = [(import rust-overlay)];
+        pkgs = import nixpkgs {inherit system overlays;};
+      in rec {
+        default = satty;
+        satty = pkgs.mkShell {
+          buildInputs = with pkgs; [
             pkg-config
             libGL
             libepoxy
@@ -28,16 +30,16 @@
             libadwaita
             fontconfig
 
-            (rust-bin.stable.latest.default.override
-              {
-                extensions = [ "rust-src" ];
-              })
+            (rust-bin.stable.latest.default.override {
+              extensions = ["rust-src"];
+            })
           ];
 
-          shellHook = ''
+          shellHook = with pkgs; ''
             export GSETTINGS_SCHEMA_DIR=${glib.getSchemaPath gtk4}
           '';
         };
       }
     );
+  };
 }