lang/elm: first attempt

init.example.el

@@ -72,6 +72,7 @@
        crystal         ; ruby at the speed of c
        csharp          ; unity, .NET, and mono shenanigans
        data            ; config/data formats
+       elm             ; care for a cup of TEA?
        emacs-lisp      ; drown in parentheses
        go              ; the hipster dialect
        haskell         ; a language that's lazier than I am

modules/lang/elm/config.el

@@ -0,0 +1,18 @@
+;;; lang/elm/config.el
+
+(def-package! elm-mode
+  :mode "\\.elm$"
+  :init
+  (add-hook 'elm-mode-hook #'flycheck-mode)
+  (add-hook 'elm-mode-hook #'rainbow-delimiters-mode)
+  :config
+  (set! :company-backend 'elm-mode '(company-elm))
+  (setq elm-format-on-save t)
+)
+
+(def-package! flycheck-elm
+  :after elm-mode
+  :config
+  (add-hook! 'flycheck-mode-hook #'flycheck-elm-setup)
+)
+

modules/lang/elm/packages.el

@@ -0,0 +1,6 @@
+;; -*- no-byte-compile: t; -*-
+;;; lang/elm/packages.el
+
+(package! flycheck-elm)
+(package! elm-mode)
+