better structure

config/waybar/waybar.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env sh
+
+# Terminate already running bar instances
+killall -q waybar
+
+# Wait until the processes have been shut down
+while pgrep -x waybar -u "$USER" >/dev/null; do sleep 1; done
+
+# Launch main
+waybar &