diff --git a/pkgs/by-name/op/openmpi/package.nix b/pkgs/by-name/op/openmpi/package.nix
index 7fcca51c739e..719247b58a43 100644
--- a/pkgs/by-name/op/openmpi/package.nix
+++ b/pkgs/by-name/op/openmpi/package.nix
@@ -85,6 +85,7 @@ stdenv.mkDerivation (finalAttrs: {
       zlib
       libevent
       hwloc
+      prrte
     ]
     ++ lib.optionals stdenv.hostPlatform.isLinux [
       libnl
@@ -92,7 +93,6 @@ stdenv.mkDerivation (finalAttrs: {
       pmix
       ucx
       ucc
-      prrte
     ]
     ++ lib.optionals cudaSupport [ cudaPackages.cuda_cudart ]
     ++ lib.optionals (stdenv.hostPlatform.isLinux || stdenv.hostPlatform.isFreeBSD) [ rdma-core ]
@@ -119,7 +119,7 @@ stdenv.mkDerivation (finalAttrs: {
     "--with-pmix=${lib.getDev pmix}"
     "--with-pmix-libdir=${lib.getLib pmix}/lib"
     # Puts a "default OMPI_PRTERUN" value to mpirun / mpiexec executables
-    (lib.withFeatureAs stdenv.hostPlatform.isLinux "prrte" (lib.getBin prrte))
+    (lib.withFeatureAs true "prrte" (lib.getBin prrte))
     (lib.withFeature enableSGE "sge")
     (lib.enableFeature enablePrefix "mpirun-prefix-by-default")
     # TODO: add UCX support, which is recommended to use with cuda for the most robust OpenMPI build
diff --git a/pkgs/by-name/pr/prrte/package.nix b/pkgs/by-name/pr/prrte/package.nix
index 980b4d889d43..1deb96f3a6c7 100644
--- a/pkgs/by-name/pr/prrte/package.nix
+++ b/pkgs/by-name/pr/prrte/package.nix
@@ -75,6 +75,6 @@ stdenv.mkDerivation rec {
     homepage = "https://docs.prrte.org/";
     license = lib.licenses.bsd3;
     maintainers = with lib.maintainers; [ markuskowa ];
-    platforms = lib.platforms.linux;
+    platforms = lib.platforms.unix;
   };
 }
diff --git a/pkgs/development/python-modules/mlx/default.nix b/pkgs/development/python-modules/mlx/default.nix
index ac90ebb89808..aa765f0537a5 100644
--- a/pkgs/development/python-modules/mlx/default.nix
+++ b/pkgs/development/python-modules/mlx/default.nix
@@ -28,13 +28,13 @@ let
 in
 buildPythonPackage rec {
   pname = "mlx";
-  version = "0.18.0";
+  version = "0.21.1";
 
   src = fetchFromGitHub {
     owner = "ml-explore";
     repo = "mlx";
     rev = "refs/tags/v${version}";
-    hash = "sha256-eFKjCrutqrmhZKzRrLq5nYl0ieqLvoXpbnTxA1NEhWo=";
+    hash = "sha256-wxv9bA9e8VyFv/FMh63sUTTNgkXHGQJNQhLuVynczZA=";
   };
 
   pyproject = true;
@@ -83,6 +83,9 @@ buildPythonPackage rec {
     changelog = "https://github.com/ml-explore/mlx/releases/tag/v${version}";
     license = licenses.mit;
     platforms = [ "aarch64-darwin" ];
-    maintainers = with maintainers; [ viraptor ];
+    maintainers = with maintainers; [
+      viraptor
+      Gabriella439
+    ];
   };
 }