The main goal is to serve content for a domain via a server which requires no configuration, handles TLS and can run on mostly any host on the internet with an IP address in one's possession.
Obviously this solution is an end in itself and there already is [Caddy](https://caddyserver.com/).
Thanks to [golang.org/x/crypto/acme/autocert](https://pkg.go.dev/golang.org/x/crypto/acme/autocert), the server will automatically attempt to get a certificate from Let's Encrypt via the [HTTP-01 challenge](https://letsencrypt.org/docs/challenge-types/#http-01-challenge) to enable TLS.