I want to build a modern version of a code book. Something that uses zero encryption at all, yet contains everything I could ever want to say. It seems like on

I want to build a modern version of a code book. Something that uses zero encryption at all, yet contains everything I could ever want to say. It seems like once encryption took over the art of codebooks kinda went away but I still find the history of them really interesting and think a modern take would be fun to build.