Ok, then we are back to what I said earlier, unlike python / c++, you are likely gonna need dependencies in rust. regex was just an example… You can manage with rustc for very basic things or for using rust in an otherwise C code, of maybe for some particular cases when compiling freestanding stuff, but you’d be in the minority. If this was a significant usecase then we would indeed have a rustc package in archlinux… in the meantime you would need to homebrew yourself a rustc aur package if you really don’t want to have cargo.