diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..2f53224
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,13 @@
+# Default: let git auto-detect text vs binary
+* text=auto
+
+# Ensure shell scripts and Dockerfiles are LF on every platform.
+# Without this, git on Windows checks them out with CRLF and Docker
+# builds (alpine bash) fail with errors like:
+#   /tmp/install-zig.sh: line 2: set: pipefail: invalid option name
+# because the trailing \r corrupts shell built-in option parsing.
+
+*.sh         text eol=lf
+*.bash       text eol=lf
+Dockerfile   text eol=lf
+*.dockerfile text eol=lf