diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..1b640d5
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,15 @@
+# Normalize line endings so a checkout on Windows still produces a working
+# deployment. Shell scripts and Docker files MUST stay LF — CRLF makes the
+# shebang fail on the Linux server with "bad interpreter".
+* text=auto eol=lf
+
+*.sh        text eol=lf
+Dockerfile  text eol=lf
+*.yaml      text eol=lf
+*.yml       text eol=lf
+
+*.png binary
+*.jpg binary
+*.ico binary
+*.woff binary
+*.woff2 binary
diff --git a/scripts/update.sh b/scripts/update.sh
old mode 100644
new mode 100755