diff --git a/behaviour.el b/behaviour.el
index ad216ae..be2aad3 100644
--- a/behaviour.el
+++ b/behaviour.el
@@ -57,17 +57,11 @@
 ;; Show trailing whitespaces and remove whitespace on save
 (setq-default show-trailing-whitespace t)
 (setq whitespace-style '(face trailing lines-tail trailing))
-(setq whitespace-line-column 80)
+
 (add-hook 'before-save-hook 'delete-trailing-lines)
 
 ;; Tabs are spaces and are general at 2. Guide indent with lines
 (setq-default indent-tabs-mode nil)
-(setq tab-width 2)
-(setq tab-stop-list (quote(2 4 6 8 10 12 14 16 20 22 24 26 28 30 32 34 36 38 40
-                             42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74
-                             76 78 80)))
-;; (require 'indent-guide)
-;; (indent-guide-global-mode)
 
 ; Insert newline on save
 (setq require-final-newline t)
@@ -85,6 +79,25 @@
 ;;; When pasting/writing over a selection, replace it.
 (delete-selection-mode 1)
 
+;;;;;;;;;;;;;;;;;;;;;; indentation functions ;;;;;;;;;;;;;;;;;;;;;;
+;; Use this function for ruby, elixir and such
+(defun set-line-limit-80-tab-2 ()
+    (setq whitespace-line-column 80)
+    (setq tab-width 2)
+    (setq tab-stop-list (quote(2 4 6 8 10 12 14 16 20 22 24 26 28 30 32 34 36 38
+                                 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70
+                                 72 74 76 78 80))))
+
+;; Use this function for rust
+(defun set-line-limit-99-tab-4 ()
+    (setq whitespace-line-column 99)
+    (setq tab-width 4)
+    (setq tab-stop-list (quote(4 8 12 16 24 28 32 36 40 44 48 52 56 60
+                                 64 68 72 76 80 84 88 92 96))))
+
+;; By default, use 80
+(set-line-limit-80-tab-2)
+
 ;;;;;;;;;;;;;;;;;;;;;;;; additional features  ;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
 ; Add completion
@@ -133,10 +146,5 @@
 ;; (add-to-list 'default-frame-alist '(alpha . (94 . 90)))
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; Additional loads ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
-; Language specific stuff
-(load "~/.emacs.d/ruby.el")
-(load "~/.emacs.d/elixir.el")
-(load "~/.emacs.d/javascript.el")
-(load "~/.emacs.d/web-mode.el")
+(load "~/.emacs.d/languages.el")
 ;;; behaviour.el ends here
diff --git a/elixir.el b/elixir.el
deleted file mode 100644
index d4d41f7..0000000
--- a/elixir.el
+++ /dev/null
@@ -1,12 +0,0 @@
-; Special language package
-(require 'alchemist)
-
-; Hooks
-(add-hook 'elixir-mode-hook
-          (alchemist-mode))
-
-(add-hook 'elixir-mode-hook
-          'flycheck-mode)
-
-(add-hook 'elixir-mode-hook
-          'ruby-end-mode)
diff --git a/emacs b/emacs
index 72cb061..08e69f8 100644
--- a/emacs
+++ b/emacs
@@ -65,6 +65,7 @@
 
 ; load custom config files
 (load "~/.emacs.d/packages.el")
+(load "~/.emacs.d/functions.el")
 (load "~/.emacs.d/behaviour.el")
 (load "~/.emacs.d/themes.el")
 (load "~/.emacs.d/key-bindings.el")
diff --git a/functions.el b/functions.el
new file mode 100644
index 0000000..b9c2565
--- /dev/null
+++ b/functions.el
@@ -0,0 +1,6 @@
+(defun kill-other-buffers
+    "Kill all buffers except for the current one"
+  (interactive)
+  (mapc 'kill-buffer (delq (current-buffer) (buffer-list)))
+  )
+
diff --git a/javascript.el b/javascript.el
deleted file mode 100644
index a839915..0000000
--- a/javascript.el
+++ /dev/null
@@ -1 +0,0 @@
-(setq js-indent-level 2)
diff --git a/languages.el b/languages.el
new file mode 100644
index 0000000..5b7eafd
--- /dev/null
+++ b/languages.el
@@ -0,0 +1,78 @@
+;;; Languages -- summary
+;;; Commentary:
+
+
+;;; Code:
+
+;;;; Major languages ;;;;
+;;; Ruby
+(defun ruby-mode-config ()
+  "Setup editor for Ruby."
+  (remove-hook 'rust-mode-hook 'rust-mode-config)
+  (remove-hook 'elixir-mode-hook 'elixir-mode-config)
+  (remove-hook 'emacs-lisp-mode-hook 'elisp-mode-config)
+
+  (set-line-limit-99-tab-4)
+  (aggressive-mode-indent)
+  (defun align-to-colon (begin end)
+    "Align region to colon signs"
+    (align-regexp begin end
+                  (rx ":" (group (zero-or-mode (syntax-white))))))
+  ;; Do not align 'begin' and 'while' ;;
+  (setq ruby-align-to-stmt-keywords '(if begin case elseif rescue))
+
+  ;; Do not indent inside the parenthasis
+  (setq ruby-deep-indent-paren nil)
+
+  ;; Do not insert encoding comments ;;
+  (setq ruby-insert-encoding-magic-comment nil)
+
+  ;; Use web-mode for erb
+  (add-to-list 'auto-mode-alist '("\\.erb\\'" . web-mode)))
+
+(add-hook 'ruby-mode-hook 'ruby-mode-config)
+
+;;; Rust
+(defun rust-mode-config ()
+  "Setup editor for rust."
+  (remove-hook 'ruby-mode-hook 'ruby-mode-config)
+  (remove-hook 'elixir-mode-hook 'elixir-mode-config)
+  (remove-hook 'emacs-lisp-mode-hook 'elisp-mode-config)
+  (set-line-limit-99-tab-4)
+  (flycheck-mode 1))
+
+(add-hook 'rust-mode-hook 'rust-mode-config)
+
+;;; Elixir
+(defun elixir-mode-config ()
+  "Call elixir mode config."
+  (remove-hook 'ruby-mode-hook 'ruby-mode-config)
+  (remove-hook 'rust-mode-hook 'rust-mode-config)
+  (remove-hook 'emacs-lisp-mode-hook 'elisp-mode-config)
+  (require 'alchemist)
+  (alchemist-mode)
+  (flycheck-mode 1)
+  (set-line-limit-80-tab-2)
+  (ruby-end-mode))
+
+(add-hook 'elixir-mode-hook 'elixir-mode-config)
+
+;;; Elisp
+(defun elisp-mode-config ()
+  "Setup editor for Lisp."
+  (remove-hook 'rust-mode-hook 'rust-mode-config)
+  (remove-hook 'ruby-mode-hook 'ruby-mode-config)
+  (remove-hook 'elixir-mode-hook 'elixir-mode-config)
+  (set-line-limit-80-tab-2)
+  (flycheck-mode 1))
+
+(add-hook 'emacs-lisp-mode-hook 'elisp-mode-config)
+
+;;;; Other things ;;;;;
+;;; Javascript
+(setq js-indent-level 2)
+
+;;; Web-mode
+(setq web-mode-markup-indent-offset 2)
+(setq web-mode-code-indent-offset 2)
+;;; languages.el ends here
diff --git a/ruby.el b/ruby.el
deleted file mode 100644
index 1b509b5..0000000
--- a/ruby.el
+++ /dev/null
@@ -1,26 +0,0 @@
-(add-hook 'ruby-mode-hook
-  (aggressive-indent-mode))
-
-(add-hook 'yaml-mode-hook
-  (lambda () (indent-guide-mode -1)))
-
-(add-hook 'sql-mode-hook
-  (lambda () (indent-guide-mode -1)))
-
-(defun align-to-colon (begin end)
-  "Align region to colon (:) signs"
-  (interactive "r")
-  (align-regexp begin end
-                (rx ":" (group (zero-or-more (syntax whitespace))) ) 1 1 ))
-
-;; Do not align 'begin' and 'while' ;;
-(setq ruby-align-to-stmt-keywords '(if begin case elseif rescue))
-
-;; Do not indent inside the parenthasis
-(setq ruby-deep-indent-paren nil)
-
-;; Do not insert encoding comments ;;
-(setq ruby-insert-encoding-magic-comment nil)
-
-;; Use web mode for erb
-(add-to-list 'auto-mode-alist '("\\.erb\\'" . web-mode))
diff --git a/themes.el b/themes.el
index c6425df..adff9a6 100644
--- a/themes.el
+++ b/themes.el
@@ -26,6 +26,7 @@
 ;; (load-theme 'flatui t t)
 (load-theme 'atom-one-dark t t)
 (load-theme 'flatui t t)
+(load-theme 'noctilux t t)
 
 (require 'helm-themes)
 (if (display-graphic-p)
@@ -35,9 +36,10 @@
       ;; (helm-themes 'avk-daylight t))
 
   (progn
-    (enable-theme 'monokai))
-    ;; (helm-themes 'monokai t))
+    ;; (enable-theme 'flatui))
+    (enable-theme 'flatui)
     ;; (enable-theme 'airline-base16-shell-dark)
+    )
   )
 
 (color-theme-approximate-on)
diff --git a/web-mode.el b/web-mode.el
deleted file mode 100644
index cb297fa..0000000
--- a/web-mode.el
+++ /dev/null
@@ -1,3 +0,0 @@
-;; Indent by 2 spaces
-(setq web-mode-markup-indent-offset 2)
-(setq web-mode-code-indent-offset 2)