diff --git a/flake.nix b/flake.nix
index 705ee7e..61a98c3 100644
--- a/flake.nix
+++ b/flake.nix
@@ -36,25 +36,7 @@
   };
 
   outputs = inputs@{ self, nixpkgs, crane, rust-overlay, flake-parts, ... }:
-    let
-      # Systems supported in CI
-      supportedSystems = [ "x86_64-linux" ];
-      fixupFlakes = outputs: nixpkgs.lib.updateManyAttrsByPath [
-        # Apply post-flakeparts massaging for limited supported systems, e.g. systems for which
-        # we don't have KVM support and cannot test in CI, but we still can meaningfully
-        # build packages.
-        {
-          path = [ "legacyPackages" "unsupportedChecks" ];
-          update = checks: checks // (nixpkgs.lib.filterAttrs (name: _: !builtins.elem name supportedSystems) outputs.checks);
-        }
-        {
-          path = [ "checks" ];
-          update = nixpkgs.lib.filterAttrs (name: _: builtins.elem name supportedSystems);
-        }
-      ]
-        outputs;
-    in
-    fixupFlakes (flake-parts.lib.mkFlake { inherit inputs; } ({ moduleWithSystem, ... }: {
+    flake-parts.lib.mkFlake { inherit inputs; } ({ moduleWithSystem, ... }: {
       imports = [
         # Derive the output overlay automatically from all packages that we define.
         inputs.flake-parts.flakeModules.easyOverlay
@@ -273,5 +255,5 @@
             TEST_SYSTEMD = pkgs.systemd;
           };
         };
-    }));
+    });
 }