diff --git a/flake.lock b/flake.lock
index ed82162..9063fd8 100644
--- a/flake.lock
+++ b/flake.lock
@@ -1,20 +1,5 @@
 {
   "nodes": {
-    "allowed-systems": {
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
-        "type": "github"
-      }
-    },
     "flake-parts": {
       "inputs": {
         "nixpkgs-lib": "nixpkgs-lib"
@@ -69,7 +54,6 @@
     },
     "root": {
       "inputs": {
-        "allowed-systems": "allowed-systems",
         "flake-parts": "flake-parts",
         "nixpkgs": "nixpkgs",
         "systems": "systems"
diff --git a/flake.nix b/flake.nix
index 45f3f31..eec1e79 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,7 +1,6 @@
 {
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
-    allowed-systems.url = "github:nix-systems/default";
     flake-parts.url = "github:hercules-ci/flake-parts";
     # The systems to build for. If empty, build for current system.
     systems.url = "github:srid/empty";
@@ -9,7 +8,7 @@
   };
   outputs = inputs@{ flake-parts, ... }:
     flake-parts.lib.mkFlake { inherit inputs; } {
-      systems = import inputs.allowed-systems;
+      systems = [ "x86_64-linux" "aarch64-linux" "aarch64-darwin" "x86_64-darwin" ];
       perSystem = { self', pkgs, lib, system, ... }: {
         packages =
           let