Round Two: Can I manage to set up Jellyfin correctly this time?

Hi y’all, thanks for the help with my question yesterday. I did a bit of homework, and I think I’ve got things figured out. Here’s my revised plan:

1. configure a cron job to update DuckDNS with my IP address every 5 minutes
2. use ufw to block all incoming traffic, except to ports 80 and 443, to allow incoming traffic to reach Caddy
3. configure the Caddyfile to direct traffic from my DuckDNS subdomain to Jellyfin’s port

Does this seem right this time? Am I missing anything, or unnecessarily adding steps? Thanks in advance, I’ll get the hang of all this someday!