Built-in Dynamic DNS Service & Reverse Proxy

[Patrizia]

 I would like to propose a pair of features that would work in tandem.

A dynamic DNS system (like DuckDNS) run by Eshtek could work wonders for users that have not purchased a domain name and might find it confusing to set up CNAME records to point multiple services to the same address. The cost of running DuckDNS is apparently negligible, so hopefully there would not need to be a subscription for the service (or if so, then maybe only a few pounds per year).

Combine this with a built-in reverse proxy like Caddy -- which can automatically provision LetsEncrypt SSL certificates -- and curated apps would then be able to be made securely accessible over the internet via an address like:

${service-name}.${user-chosen-name}.hexos.com

Apps could then advertise this as their address in the dashboard, making secure configuration of user apps significantly easier.

The only user-configurable step that would be required would be to open ports 80/443 on the user's router, something that Eshtek cannot control, but crucially, something that the HexOS Deck *would* be able to check for, notifying users if their router is configured correctly. Since there is already a web service running on ports 80/443, this reverse proxy would need alternative ports, but most routers can receive a connection on one port and map it to a different port internally, so this is unlikely to present a major problem.