diff --git a/public/install.sh b/public/install.sh
new file mode 100755
index 0000000..b564c1d
--- /dev/null
+++ b/public/install.sh
@@ -0,0 +1,17 @@
+#!/bin/sh
+set -eu
+
+# Compatibility entrypoint for installation links published before the
+# installer moved to immutable GitHub Release assets.
+installer_url="https://github.com/push-in/pam/releases/latest/download/install.sh"
+
+if command -v curl >/dev/null 2>&1; then
+    exec curl -fsSL "$installer_url" | sh
+fi
+
+if command -v wget >/dev/null 2>&1; then
+    exec wget -qO- "$installer_url" | sh
+fi
+
+echo "PAM installer: curl or wget is required." >&2
+exit 1