diff --git a/pkgs/by-name/fu/furmark/package.nix b/pkgs/by-name/fu/furmark/package.nix
index ef5e9acf6540..2892c7f1db8a 100644
--- a/pkgs/by-name/fu/furmark/package.nix
+++ b/pkgs/by-name/fu/furmark/package.nix
@@ -47,9 +47,7 @@ let
 in
 stdenv.mkDerivation (finalAttrs: {
   pname = "furmark";
-  version =
-    versions.${stdenv.hostPlatform.system}
-      or (throw "Furmark is not available on ${stdenv.hostPlatform.system}");
+  version = versions.${stdenv.hostPlatform.system} or versions.x86_64-linux;
 
   src = fetchurl sources.${stdenv.hostPlatform.system};
 
diff --git a/pkgs/by-name/ov/OVMF-cloud-hypervisor/package.nix b/pkgs/by-name/ov/OVMF-cloud-hypervisor/package.nix
index 035fa814b072..aa0e71380764 100644
--- a/pkgs/by-name/ov/OVMF-cloud-hypervisor/package.nix
+++ b/pkgs/by-name/ov/OVMF-cloud-hypervisor/package.nix
@@ -143,6 +143,10 @@ edk2.mkDerivation projectDscPath (finalAttrs: {
     maintainers = with lib.maintainers; [
       messemar
     ];
+    platforms = [
+      "x86_64-linux"
+      "aarch64-linux"
+    ];
     broken = stdenv.hostPlatform.isDarwin;
   };
 })
diff --git a/pkgs/by-name/pg/pgsql-tools/package.nix b/pkgs/by-name/pg/pgsql-tools/package.nix
index e8ac7a04be46..101eb38a575e 100644
--- a/pkgs/by-name/pg/pgsql-tools/package.nix
+++ b/pkgs/by-name/pg/pgsql-tools/package.nix
@@ -81,7 +81,11 @@ stdenv.mkDerivation (finalAttrs: {
     description = "Backend service for PostgreSQL server tools, offering features such as connection management, query execution with result set handling, and language service support via the VS Code protocol";
     changelog = "https://github.com/microsoft/pgsql-tools/releases/tag/v${finalAttrs.version}";
     license = lib.licenses.mit;
-    platforms = lib.platforms.linux ++ lib.platforms.darwin;
+    platforms = [
+      "x86_64-linux"
+      "aarch64-linux"
+      "aarch64-darwin"
+    ];
     maintainers = with lib.maintainers; [ liberodark ];
     mainProgram = "ossdbtoolsservice_main";
     sourceProvenance = with lib.sourceTypes; [ binaryNativeCode ];
diff --git a/pkgs/by-name/su/sunshine/package.nix b/pkgs/by-name/su/sunshine/package.nix
index 1a285cb4279d..793728b6c467 100644
--- a/pkgs/by-name/su/sunshine/package.nix
+++ b/pkgs/by-name/su/sunshine/package.nix
@@ -328,6 +328,10 @@ stdenv'.mkDerivation (finalAttrs: {
       devusb
       anish
     ];
-    platforms = lib.platforms.linux ++ lib.platforms.darwin;
+    platforms = [
+      "x86_64-linux"
+      "aarch64-linux"
+      "aarch64-darwin"
+    ];
   };
 })
diff --git a/pkgs/development/compilers/swift/compiler/default.nix b/pkgs/development/compilers/swift/compiler/default.nix
index 2f6fa2a9450f..52c25a741055 100644
--- a/pkgs/development/compilers/swift/compiler/default.nix
+++ b/pkgs/development/compilers/swift/compiler/default.nix
@@ -819,7 +819,12 @@ stdenv.mkDerivation {
     homepage = "https://github.com/apple/swift";
     teams = [ lib.teams.swift ];
     license = lib.licenses.asl20;
-    platforms = with lib.platforms; linux ++ darwin;
+    platforms = [
+      "x86_64-linux"
+      "aarch64-linux"
+      "x86_64-darwin"
+      "aarch64-darwin"
+    ];
     # Swift doesn't support 32-bit Linux, unknown on other platforms.
     badPlatforms = lib.platforms.i686;
     timeout = 86400; # 24 hours.
diff --git a/pkgs/development/python-modules/tritonclient/default.nix b/pkgs/development/python-modules/tritonclient/default.nix
index 419de8bda9b7..ec393bb95fef 100644
--- a/pkgs/development/python-modules/tritonclient/default.nix
+++ b/pkgs/development/python-modules/tritonclient/default.nix
@@ -69,6 +69,9 @@ buildPythonPackage rec {
     homepage = "https://github.com/triton-inference-server/client";
     license = lib.licenses.bsd3;
     maintainers = with lib.maintainers; [ happysalada ];
-    platforms = lib.platforms.linux;
+    platforms = [
+      "x86_64-linux"
+      "aarch64-linux"
+    ];
   };
 }