As long as you’re not behind CGNAT, you can use a dynamic DNS provider (like duckdns.org) and its web API to keep a record pointed at your IP. If you’re behind CGNAT, Tailscale also has a service (Tailscale Funnel) that can expose an internal service to the internet.
You could also pay for a small VPS with a static IP, and set up a Wireguard tunnel to your home server and an HTTPS proxy to forward traffic through the tunnel.
As long as you’re not behind CGNAT, you can use a dynamic DNS provider (like duckdns.org) and its web API to keep a record pointed at your IP. If you’re behind CGNAT, Tailscale also has a service (Tailscale Funnel) that can expose an internal service to the internet.
You could also pay for a small VPS with a static IP, and set up a Wireguard tunnel to your home server and an HTTPS proxy to forward traffic through the tunnel.
Also, just in general, use Tailscale. It’s serious black magic fuckery on the firewall.