diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..59c5f25
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,3 @@
+# Keep authored text bytes identical in Windows checkouts and Linux release CI.
+* text=auto eol=lf
+*.inxpkg binary