I've experimented a lot with making my own CLI programs to change how I interact with the terminal, for example wrapping things like cp and mv in a stateful way

I've experimented a lot with making my own CLI programs to change how I interact with the terminal, for example wrapping things like cp and mv in a stateful way. I feel like I'd reached some form of enlightenment when I was able to do > cp file > z folder (which is deeply nested somewhere else) > paste instead of having to type everything out. It feels to me like the possibilities of the CLI and how we interact with it have barely been explored.