supervisord.conf

[supervisord]
nodaemon=true
logfile=/tmp/supervisord.log ; (main log file;default $CWD/supervisord.log)
pidfile=/tmp/supervisord.pid ; (supervisord pidfile;default supervisord.pid)

[program:shiny]
command=shiny run app.py --host 0.0.0.0 --port 7860
autostart=true
autorestart=true
stdout_logfile=/tmp/shiny.log
stderr_logfile=/tmp/shiny_err.log

[program:flask]
command=python flask_app.py
autostart=true
autorestart=true
stdout_logfile=/tmp/flask.log
stderr_logfile=/tmp/flask_err.log