diff --git a/setup.sh b/setup.sh
index 1bc42ac..c531f89 100755
--- a/setup.sh
+++ b/setup.sh
@@ -127,7 +127,8 @@ detect_platform() {
     esac
 }
 
-# ── Install just ──
+# ── Install just through the detected package manager ──
+# Returns non-zero if no supported manager is available or just remains unavailable.
 install_just() {
     if command -v just >/dev/null 2>&1; then
         ok "just already installed: $(just --version 2>/dev/null | head -1)"