wip: aarch64 widevine for helium

packages/helium-browser/widevine-meta.nix

@@ -0,0 +1,15 @@
+lib: {
+  description = "Widevine CDM";
+  homepage = "https://www.widevine.com";
+  sourceProvenance = with lib.sourceTypes; [ binaryNativeCode ];
+  license = lib.licenses.unfree;
+  maintainers = with lib.maintainers; [
+    jlamur
+    bearfm
+  ];
+  platforms = lib.map (name: lib.removeSuffix ".nix" (lib.removePrefix "widevine-" name)) (
+    lib.filter (name: name != "meta.nix" && name != "package.nix") (
+      builtins.attrNames (builtins.readDir ./.)
+    )
+  );
+}