There are already many of these. fd, httpie, rg, and so on. There is of course RustTLS that already exists and is already very advanced. For package manager s

There are already many of these. fd, httpie, rg, and so on. There is of course RustTLS that already exists and is already very advanced. For package manager see for example AerynOS (or its new name that I can't remember). There are lots of rust editors, terminal and otherwise. And of course the complete Cosmic Desktop is written in Rust, so you don't have to go 'non-graphical' at all. So AerynOS, with uutils and Cosmic is very close I would say.