nixpkgs/pkgs/development/compilers/flutter/patches/override-operating-system.patch


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diff --git a/packages/flutter_tools/lib/src/base/platform.dart b/packages/flutter_tools/lib/src/base/platform.dart
index 45da89ad4c..2d79dbaece 100644
--- a/packages/flutter_tools/lib/src/base/platform.dart
+++ b/packages/flutter_tools/lib/src/base/platform.dart
@@ -132,7 +132,7 @@ class LocalPlatform extends Platform {
   String get pathSeparator => io.Platform.pathSeparator;

   @override
-  String get operatingSystem => io.Platform.operatingSystem;
+  String get operatingSystem => io.Platform.environment['NIX_FLUTTER_OPERATING_SYSTEM'] ?? io.Platform.operatingSystem;

   @override
   String get operatingSystemVersion => io.Platform.operatingSystemVersion;