Hacker News Reader

Thankfully IPv6 defined a single "localhost" or loopback IP: ::1/128

There is none of this 127/8 mess.

that "mess" is great for testing though, you can spin up numerous instances each on their own loopback address.

You can use a link local address of your public interface in IPv6.

That's just one, adding more require elevated privileges, with 127.0.0.0/8 you have 256³ at your disposal.