One thing I always found annoying is, say I am on a shared host like WebFaction, and I use supervisord to manage my uWSGI (or whatever) instances. What do I do

One thing I always found annoying is, say I am on a shared host like WebFaction, and I use supervisord to manage my uWSGI (or whatever) instances. What do I do to ensure supervisord itself starts? Current approach is a script run by cron that greps ps for supervisord and if not found, launches it. But that seems rather flakey and unreliable. Suggestions?