From f983ff66a946a42846f2ec29e734a71f88c94cb3 Mon Sep 17 00:00:00 2001
From: Shurong Cao <170531907+CAOShurong@users.noreply.github.com>
Date: Wed, 12 Aug 2026 12:55:27 +0800
Subject: [PATCH 1/2] fix: respect configured NuGet package sources

---
 cibuildwheel/platforms/windows.py |  2 --
 unit_test/get_platform_test.py    | 22 +++++++++++++++++++++-
 2 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/cibuildwheel/platforms/windows.py b/cibuildwheel/platforms/windows.py
index d7df473ef..fe61e762c 100644
--- a/cibuildwheel/platforms/windows.py
+++ b/cibuildwheel/platforms/windows.py
@@ -81,8 +81,6 @@ def get_nuget_args(
         package_name,
         "-Version",
         version,
-        "-FallbackSource",
-        "https://api.nuget.org/v3/index.json",
         "-OutputDirectory",
         str(output_directory),
     ]
diff --git a/unit_test/get_platform_test.py b/unit_test/get_platform_test.py
index 22bd9d053..2a275c9af 100644
--- a/unit_test/get_platform_test.py
+++ b/unit_test/get_platform_test.py
@@ -8,7 +8,11 @@
 
 from cibuildwheel.ci import CIProvider, detect_ci_provider
 from cibuildwheel.errors import FatalError
-from cibuildwheel.platforms.windows import PythonConfiguration, setup_setuptools_cross_compile
+from cibuildwheel.platforms.windows import (
+    PythonConfiguration,
+    get_nuget_args,
+    setup_setuptools_cross_compile,
+)
 
 TYPE_CHECKING = False
 if TYPE_CHECKING:
@@ -30,6 +34,22 @@ def patched_environment(
         yield
 
 
+@pytest.mark.parametrize(
+    ("arch", "free_threaded", "package_name"),
+    [("AMD64", False, "python"), ("ARM64", True, "pythonarm64-freethreaded")],
+)
+def test_nuget_args_use_configured_sources(
+    arch: str, free_threaded: bool, package_name: str, tmp_path: Path
+) -> None:
+    assert get_nuget_args("3.14.1", arch, free_threaded, tmp_path) == [
+        package_name,
+        "-Version",
+        "3.14.1",
+        "-OutputDirectory",
+        str(tmp_path),
+    ]
+
+
 def test_x86(tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
     environment: dict[str, str] = {}
     configuration = PythonConfiguration(version="irrelevant", identifier="cp314-win32", url=None)

From 51c5d3fc6c22978d9df0345c13465f2492bd561d Mon Sep 17 00:00:00 2001
From: Shurong Cao <170531907+CAOShurong@users.noreply.github.com>
Date: Wed, 12 Aug 2026 16:40:46 +0800
Subject: [PATCH 2/2] test: use concise NuGet args name

---
 unit_test/get_platform_test.py | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/unit_test/get_platform_test.py b/unit_test/get_platform_test.py
index 2a275c9af..9eeb79ecb 100644
--- a/unit_test/get_platform_test.py
+++ b/unit_test/get_platform_test.py
@@ -38,9 +38,7 @@ def patched_environment(
     ("arch", "free_threaded", "package_name"),
     [("AMD64", False, "python"), ("ARM64", True, "pythonarm64-freethreaded")],
 )
-def test_nuget_args_use_configured_sources(
-    arch: str, free_threaded: bool, package_name: str, tmp_path: Path
-) -> None:
+def test_get_nuget_args(arch: str, free_threaded: bool, package_name: str, tmp_path: Path) -> None:
     assert get_nuget_args("3.14.1", arch, free_threaded, tmp_path) == [
         package_name,
         "-Version",