Install dockerfile mode, prevent fira code from loading on non Macos

.emacs.d/custom.el

@@ -12,7 +12,7 @@
  '(epg-gpg-program "/usr/local/bin/gpg")
  '(global-hl-line-mode t)
  '(package-selected-packages
-   '(sudo-edit modus-themes org-caldav json-mode pdf-tools org-special-block-extras neotree sr-speedbar lsp-python-ms fira-code-mode yasnippet org-pdftools phps-mode projectile webfeeder znc pinboard yaml-mode which-key web-mode virtualenvwrapper use-package twittering-mode try smex racer powershell poetry pipenv ox-reveal outline-magic org-pdfview org-bullets ob-restclient multiple-cursors magit lua-mode lsp-ui iedit helm flycheck-rust exec-path-from-shell eglot edit-indirect company-lsp ansible ace-window)))
+   '(dockerfile-mode sudo-edit modus-themes org-caldav json-mode pdf-tools org-special-block-extras neotree sr-speedbar lsp-python-ms fira-code-mode yasnippet org-pdftools phps-mode projectile webfeeder znc pinboard yaml-mode which-key web-mode virtualenvwrapper use-package twittering-mode try smex racer powershell poetry pipenv ox-reveal outline-magic org-pdfview org-bullets ob-restclient multiple-cursors magit lua-mode lsp-ui iedit helm flycheck-rust exec-path-from-shell eglot edit-indirect company-lsp ansible ace-window)))
  '(znc-servers
    `(("bouncer.awful.club" 5000 t
       ((freenode "blindidiotgod/freenode" ,znc-password)

.emacs.d/jlj-generic.el

@@ -17,10 +17,11 @@
 (show-paren-mode 1)
 (setq show-paren-delay 0)
 
-;; set default font
-(set-frame-font "fira code 12")
-(add-to-list 'default-frame-alist '(font . "fira code 12" ))
-(set-face-attribute 'default t :font "fira code 12" )
+;; set default font for macos
+(when (eq system-type 'darwin)
+  (set-frame-font "fira code 12")
+  (add-to-list 'default-frame-alist '(font . "fira code 12" ))
+  (set-face-attribute 'default t :font "fira code 12" ))
 (transient-mark-mode 1)              ; Enable transient mark mode (highlights)
 
 (global-hl-line-mode t)              ; highlights the line you're on
@@ -237,6 +238,9 @@
 (use-package sudo-edit
   :ensure t)
 
+(use-package dockerfile-mode
+  :ensure t)
+
 (server-start)
 
 ;;; jlj-generic.el ends here