janet-mode + janet-editor-elf + rainbow-delimiters + monokai via straight for emacs

init.el

;; ~/.emacs.d/init.el

;; via:
;;   https://github.com/raxod502/straight.el#getting-started
(defvar bootstrap-version)
(let ((bootstrap-file
       (expand-file-name "straight/repos/straight.el/bootstrap.el"
                         user-emacs-directory))
      (bootstrap-version 5))
  (unless (file-exists-p bootstrap-file)
    (with-current-buffer
        (url-retrieve-synchronously
         (concat "https://raw.githubusercontent.com/"
                 "raxod502/straight.el/develop/install.el")
         'silent 'inhibit-cookies)
      (goto-char (point-max))
      (eval-print-last-sexp)))
  (load bootstrap-file nil 'nomessage))

;; via:
;;   https://github.com/raxod502/straight.el#integration-with-use-package
(straight-use-package 'use-package)
(setq straight-use-package-by-default t)

;;; monokai
(straight-use-package
 '(monokai-theme :host github
                 :repo "oneKelvinSmith/monokai-emacs"
                 :files ("*.el")))

(load-theme 'monokai t)

(use-package rainbow-delimiters
  :straight t
  :config
  (custom-set-faces
   ;; XXX: doesn't seem too helpful for the unclosed case?
   ;;'(rainbow-delimiters-unmatched-face ((t (:foreground "purple"))))
   '(rainbow-delimiters-depth-1-face ((t (:foreground "dark orange"))))
   '(rainbow-delimiters-depth-2-face ((t (:foreground "deep pink"))))
   '(rainbow-delimiters-depth-3-face ((t (:foreground "chartreuse"))))
   '(rainbow-delimiters-depth-4-face ((t (:foreground "deep sky blue"))))
   '(rainbow-delimiters-depth-5-face ((t (:foreground "yellow"))))
   '(rainbow-delimiters-depth-6-face ((t (:foreground "orchid"))))
   '(rainbow-delimiters-depth-7-face ((t (:foreground "spring green"))))
   '(rainbow-delimiters-depth-8-face ((t (:foreground "sienna1")))))
  ;; XXX: here or elsewhere?
  (add-hook 'emacs-lisp-mode-hook 'rainbow-delimiters-mode)
  (add-hook 'janet-mode-hook 'rainbow-delimiters-mode)
  )

;;; janet-mode
(straight-use-package
 '(janet-mode :host github
              :repo "ALSchwalm/janet-mode"
              :files ("*.el")))

(use-package janet-mode
  :straight t)

(straight-use-package
  '(janet-editor-elf :host github
                     :repo "sogaiu/janet-editor-elf"
                     :files ("*.el" "janet-editor-elf")))

(use-package janet-editor-elf
  :straight t
  :config
  ;; menu
  (add-hook 'janet-mode-hook #'jee-mode)
  ;; indentation
  (add-hook 'janet-mode-hook
            (lambda ()
              ;; line indentation
              (setq-local indent-line-function
                          #'jee-indent-line)
              ;; region indentation
              (setq-local indent-region-function
                          #'jee-indent-region))))