Split up configuration in five files. I wrote a nice commit message explaining this, but I wrote it in vi and it died on me.

emacs.d/init-modes.el

@@ -0,0 +1,38 @@
+;; Initializes modes I use.
+
+(add-hook 'prog-mode-hook 'esk-pretty-lambdas)
+(add-hook 'prog-mode-hook 'esk-add-watchwords)
+(add-hook 'prog-mode-hook 'idle-highlight-mode)
+
+;; Configure markdown-mode
+(autoload 'markdown-mode "markdown-mode"
+  "Major mode for editing Markdown files" t)
+(add-to-list 'auto-mode-alist '("\\.txt\\'" . markdown-mode))
+(add-to-list 'auto-mode-alist '("\\.markdown\\'" . markdown-mode))
+(add-to-list 'auto-mode-alist '("\\.md\\'" . markdown-mode))
+
+;; Configure haskell-mode
+;; Enable semi-automatic indentation and font-locking
+(add-hook 'haskell-mode-hook 'turn-on-haskell-indentation)
+(add-hook 'haskell-mode-hook 'font-lock-mode)
+
+;; Add keybindings to move nested blocks with C-, rsp. C-.
+(define-key haskell-mode-map (kbd "C-,") 'haskell-move-nested-left)
+(define-key haskell-mode-map (kbd "C-.") 'haskell-move-nested-right)
+
+;; Configure nrepl (Clojure REPL) and clojure-mode
+;; Paredit in clojure
+
+(add-hook 'clojure-mode-hook 'paredit-mode)
+
+;; eldoc in clojure
+(add-hook 'nrepl-interaction-mode-hook
+  'nrepl-turn-on-eldoc-mode)
+
+;; Don't annoy me
+(setq nrepl-hide-special-buffers t)
+(setq nrepl-popup-stacktraces nil)
+
+;; Paredit in nrepl
+(add-hook 'nrepl-mode-hook 'paredit-mode)
+(add-hook 'nrepl-mode-hook 'rainbow-delimiters-mode)