Blox is a package that provides functions to interact with Roblox tooling such as Rojo from the comfort of Emacs.
Blox is on melpa and can be installed with your package manager of choice.
Blox doesn't bind any keys by itself. Assuming that lua-mode is installed, a configuration might look something like this:
(require 'blox)
(define-key lua-prefix-mode-map (kbd "s") #'blox-prompt-serve)
(define-key lua-prefix-mode-map (kbd "b") #'blox-prompt-build)
(define-key lua-prefix-mode-map (kbd "t") #'blox-test)
Or with use-package:
(use-package blox
:bind (:map lua-prefix-mode-map
("s" . blox-prompt-serve)
("b" . blox-prompt-build)
("t" . blox-test)))