diff --git a/tree/.local/nu/cargo.nu b/tree/.local/nu/cargo.nu
new file mode 100644
index 0000000..e67fe32
--- /dev/null
+++ b/tree/.local/nu/cargo.nu
@@ -0,0 +1,6 @@
+# Resolve path to the cargo target dir, including an optional subpath
+def ctd [
+	path?: string
+] {
+	$"($env.CARGO_TARGET_DIR)/($path)"
+}
diff --git a/tree/.local/nu/readelf.nu b/tree/.local/nu/readelf.nu
old mode 100755
new mode 100644