When two humans want to talk but don't speak a shared language, if they spend enough time together, they will figure out how to communicate eventually.

But when two computers want to talk to each other and don't speak a "shared language" (aka, the client specifically must conform to the server's "language"—it's very one-sided in that sense) then no amount of time will allow them to learn one another's rules or settle on a shared communication contact without a human programmer getting involved.

There are ML architectures that can do that. The two halves of an autoencoder learn a “shared language” that allows them to communicate through a bottleneck.

I got that far but... what is the technical solution?