$ hello-nix # this will fail -bash: line 40: hello-nix: command not found -$ nix develop -building '/nix/store/72z63qhsk4f8shg0yn81m76w56m42x7s-hello-again-env.drv'... -$ hello-nix +$ nix run +this derivation will be built: + /nix/store/xdld3mcyya6vzr5v7ihg1wqgq4daj2y6-hello-again.drv +building '/nix/store/xdld3mcyya6vzr5v7ihg1wqgq4daj2y6-hello-again.drv'... +I'm a flake, but I'm running a command defined in a non-flake package. Hello from your nix package!