Initial commit

overlay/usr/local/libexec/home-overlay.sh

@@ -0,0 +1,17 @@
+#!/bin/sh
+
+if mountpoint -q "${HOME}"; then
+    exit 0
+fi
+
+upperdir="${XDG_RUNTIME_DIR}"/home/rw
+workdir="${XDG_RUNTIME_DIR}"/home/.work
+
+mkdir -p "${upperdir}"
+mkdir -p "${workdir}"
+
+mount overlay \
+    -t overlay \
+    -o lowerdir="${HOME}",upperdir="${upperdir}",workdir="${workdir}" \
+    "${HOME}"
+chown "${PAM_USER}": "${HOME}"