diff --git a/flake.nix b/flake.nix
index ddc1f73..3acd8a3 100644
--- a/flake.nix
+++ b/flake.nix
@@ -41,9 +41,6 @@
         inherit (pkgs.stdenv) isDarwin isLinux;
       in {
         inherit flake-utils nixpkgs;
-
-        darwinOnly = ls: optionals isDarwin ls;
-        linuxOnly = ls: optionals isLinux ls;
       };
 
       templates = {
diff --git a/rust/flake.nix b/rust/flake.nix
index 5e0f7b1..e069385 100644
--- a/rust/flake.nix
+++ b/rust/flake.nix
@@ -27,7 +27,8 @@
 
         deps = with pkgs; [ openssl pkgconfig ];
         rustTools = with pkgs;
-          [ cargo-profiler rust-analyzer ] ++ optionals isLinux (with pkgs; [ cargo-watch ]);
+          [ cargo-profiler rust-analyzer ]
+          ++ optionals isLinux (with pkgs; [ cargo-watch ]);
       in {
         packages.default = rust;