Im using wireguard VPN. You have to setup VPN server (using your DynDNS address, but duckdns in my case), open wireguard port in your router and configure each device that needs access. Reverse proxy is not needed, but I have it so I can use jellyfin.example.com instead of 192.168.100.40:8096. I use NPM (nginx proxy manager) with awesome GUI that can create lets encrypt certificates. I also use piHole for local DNS server