It's not horrible, like it'll do the job just fine, it's just probably a better idea to use systemd and like, containers and whatnot, but I couldn't be arsed to fiddle with all that for Jellyfin, caddy reverse proxy, and two modded Minecraft servers, so shell scripts and tmux won the day. It takes a little extra time to restart everything after an update, and maybe I'll get the motivation to do things "correctly™" one day, but today is not that day.

1. They're all gone when you restart
2. It doesn't properly deal with logging
3. You can't set up dependencies between services but that doesn't matter due to point 1

I recommend using systemd services and/or docker compose instead. systemd services are files that describe which program / script to run and when (like after networking is active or after a certain other service is loaded).