diff --git a/configuration.org b/configuration.org
index 339d5802737af8d21cdb34828e2badf2b44b36cd..ce28427a84132c5a15f6b929f8ac849eced06af1 100644
--- a/configuration.org
+++ b/configuration.org
@@ -13,7 +13,7 @@ Some of my configuration entries where borrowed from other people, see
   the configuration to make each GC call faster for normal emacs use.
 
   #+begin_src emacs-lisp
-    (setq gc-cons-threshold (* 60 1024 1024))
+(setq gc-cons-threshold (* 60 1024 1024))
   #+end_src
 
 * Personal information
@@ -21,11 +21,11 @@ Some of my configuration entries where borrowed from other people, see
   Sets who I am
 
   #+begin_src emacs-lisp
-    (setq user-full-name "Michaël Hauspie"
-          user-mail-address "michael.hauspie@univ-lille.fr"
-          calendar-latitude 50.60483
-          calendar-longitude 3.1464
-          calendar-location-name "Villeneuve d'Ascq, France")
+(setq user-full-name "Michaël Hauspie"
+      user-mail-address "michael.hauspie@univ-lille.fr"
+      calendar-latitude 50.60483
+      calendar-longitude 3.1464
+      calendar-location-name "Villeneuve d'Ascq, France")
   #+end_src
 
 
@@ -34,11 +34,11 @@ Some of my configuration entries where borrowed from other people, see
   I use [[https://elpa.gnu.org][Elpa]], [[https://melpa.org][Melpa]] and [[http://orgmode.org][Org mode]] packages repository, thus I need to add them to the =package-archives= list
 
   #+BEGIN_SRC emacs-lisp
-    (require 'package)
-    (add-to-list 'package-archives '("gnu" . "https://elpa.gnu.org/packages/") t)
-    (add-to-list 'package-archives '("melpa" . "https://melpa.org/packages/") t)
-    (add-to-list 'package-archives '("org" . "https://orgmode.org/elpa/") t)
-    (package-initialize)
+(require 'package)
+(add-to-list 'package-archives '("gnu" . "https://elpa.gnu.org/packages/") t)
+(add-to-list 'package-archives '("melpa" . "https://melpa.org/packages/") t)
+(add-to-list 'package-archives '("org" . "https://orgmode.org/elpa/") t)
+(package-initialize)
   #+END_SRC
 
 
@@ -48,9 +48,9 @@ Some of my configuration entries where borrowed from other people, see
 
 
   #+BEGIN_SRC emacs-lisp
-    (when (not (package-installed-p 'use-package))
-      (package-refresh-contents)
-      (package-install 'use-package))
+(when (not (package-installed-p 'use-package))
+  (package-refresh-contents)
+  (package-install 'use-package))
   #+END_SRC
 
 
@@ -58,27 +58,27 @@ Some of my configuration entries where borrowed from other people, see
   ensure package by default
 
   #+BEGIN_SRC emacs-lisp
-    (require 'use-package-ensure)
-    (setq use-package-always-ensure t)
+(require 'use-package-ensure)
+(setq use-package-always-ensure t)
   #+END_SRC
 
   I like to keep things up to date, so I use =auto-package-update=
 
   #+BEGIN_SRC emacs-lisp
-    ;; (use-package auto-package-update
-    ;;   :config
-    ;;   (setq auto-package-update-delete-old-versions t)
-    ;;   (setq auto-package-update-hide-results t)
-    ;;   (auto-package-update-maybe))
+;; (use-package auto-package-update
+;;   :config
+;;   (setq auto-package-update-delete-old-versions t)
+;;   (setq auto-package-update-hide-results t)
+;;   (auto-package-update-maybe))
   #+END_SRC
 
   and I want to be sure that compiled versions of packages are up-to-date
 
   #+begin_src emacs-lisp
-    (use-package auto-compile
-      :config (auto-compile-on-load-mode))
+(use-package auto-compile
+  :config (auto-compile-on-load-mode))
 
-    (setq load-prefer-newer t)
+(setq load-prefer-newer t)
   #+end_src
 
 
@@ -96,17 +96,17 @@ Some of my configuration entries where borrowed from other people, see
    I quite like have it around sometimes, so I re-enable it.
 
    #+BEGIN_SRC emacs-lisp
-     (use-package better-defaults)
+(use-package better-defaults)
 
-     ;; I want menu bar
-     (menu-bar-mode t)
+;; I want menu bar
+(menu-bar-mode t)
    #+END_SRC
 
    Ido is not set everywhere by =better-defaults= and I really want it everywhere
 
    #+begin_src emacs-lisp
-     (setq ido-enable-flex-matching t)
-     (setq ido-everywhere t)
+(setq ido-enable-flex-matching t)
+(setq ido-everywhere t)
    #+end_src
 
 
@@ -114,15 +114,15 @@ Some of my configuration entries where borrowed from other people, see
    behave *as* an option key and not an Emacs =meta= key.
 
    #+begin_src emacs-lisp
-     (when (eq system-type 'darwin)
-       (setq mac-right-option-modifier nil))
+(when (eq system-type 'darwin)
+  (setq mac-right-option-modifier nil))
    #+end_src
 
    Allow pressing only =y= instead of =yes= for fast answer to yes or no question
 
    #+begin_src emacs-lisp
-     ;; Make the y or n suffice for a yes or no question
-     (fset 'yes-or-no-p 'y-or-n-p)
+;; Make the y or n suffice for a yes or no question
+(fset 'yes-or-no-p 'y-or-n-p)
    #+end_src
 
 ** Editor tweaks
@@ -130,39 +130,39 @@ Some of my configuration entries where borrowed from other people, see
    Save the place in the file when killing the buffer so that it reopens at the same spot later
 
    #+begin_src emacs-lisp
-     (save-place-mode t)
+(save-place-mode t)
    #+end_src
 
    Syntax highlighting everywhere 
 
    #+begin_src emacs-lisp
-     (global-font-lock-mode t)
-     (setq font-lock-maximum-decoration t)
+(global-font-lock-mode t)
+(setq font-lock-maximum-decoration t)
    #+end_src
 
    Use 4 spaces as tab
 
    #+begin_src emacs-lisp
-     (setq tab-width 4)
+(setq tab-width 4)
    #+end_src
 
    Allow cursor to top/bottom of file before signaling a scrolling error
 
    #+begin_src emacs-lisp
-     (setq scroll-error-top-bottom t)
+(setq scroll-error-top-bottom t)
    #+end_src
 
 
    Replace selection as I type
 
    #+begin_src emacs-lisp
-     (delete-selection-mode t)
+(delete-selection-mode t)
    #+end_src
 
    When using =C-k=, kill the whole line (including =\n=)
 
    #+begin_src emacs-lisp
-     (setq kill-whole-line t)
+(setq kill-whole-line t)
    #+end_src
 
    When moving the cursor up or down, remember when it was on a line end
@@ -170,7 +170,7 @@ Some of my configuration entries where borrowed from other people, see
 
 
    #+begin_src emacs-lisp
-     (setq track-eol t)
+(setq track-eol t)
    #+end_src
 
 
@@ -180,36 +180,36 @@ Some of my configuration entries where borrowed from other people, see
    save/revert, Emacs asks what to do.
 
    #+begin_src emacs-lisp
-     (global-auto-revert-mode t)
-     ;; kept for future use, I think I do not want that
-     ;;  (setq global-auto-revert-non-file-buffers nil)
+(global-auto-revert-mode t)
+;; kept for future use, I think I do not want that
+;;  (setq global-auto-revert-non-file-buffers nil)
    #+end_src
 
    Do not word wrap buffers, truncate long lines
    #+begin_src emacs-lisp
-     ;; Truncate lines (don't word wrap)
-     (setq truncate-lines t)
+;; Truncate lines (don't word wrap)
+(setq truncate-lines t)
    #+end_src
 
    If a timestamp tag is present in the file, update it when saving
 
    #+begin_src emacs-lisp
-     ;; Time stamping
-     (setq  time-stamp-active t          ; do enable time-stamps
-            time-stamp-line-limit 70     ; check first 70 buffer lines for Time-stamp:
-            time-stamp-format "%Y-%02m-%02d %02H:%02M:%02S (%u)") ; date format
-     (add-hook 'write-file-hooks 'time-stamp)
+;; Time stamping
+(setq  time-stamp-active t          ; do enable time-stamps
+       time-stamp-line-limit 70     ; check first 70 buffer lines for Time-stamp:
+       time-stamp-format "%Y-%02m-%02d %02H:%02M:%02S (%u)") ; date format
+(add-hook 'write-file-hooks 'time-stamp)
    #+end_src
 
    Define a shortcut to re-indent all buffer. This saves the current point, marks whole buffer and call =indent-region=
 
    #+begin_src emacs-lisp
-     (defun mh/indent-buffer()
-       (interactive)
-       (save-excursion
-         (indent-region (point-min) (point-max))))
+(defun mh/indent-buffer()
+  (interactive)
+  (save-excursion
+    (indent-region (point-min) (point-max))))
 
-     (global-set-key (kbd "C-c i b") 'mh/indent-buffer)
+(global-set-key (kbd "C-c i b") 'mh/indent-buffer)
    #+end_src
 
    #+RESULTS:
@@ -220,9 +220,9 @@ Some of my configuration entries where borrowed from other people, see
    Manage undo as a tree so that we can undo/redo more. Bound by default on =C-x u=
 
    #+begin_src emacs-lisp
-     (use-package undo-tree
-       :config
-       (global-undo-tree-mode))
+(use-package undo-tree
+  :config
+  (global-undo-tree-mode))
    #+end_src
 
 
@@ -235,31 +235,31 @@ Some of my configuration entries where borrowed from other people, see
    matching parenthesis. Also do not show the welcome screen.
 
    #+BEGIN_SRC emacs-lisp
-     ;; Do not show welcome screen
-     (setq inhibit-startup-screen t)
+;; Do not show welcome screen
+(setq inhibit-startup-screen t)
 
-     ;; Highlight current line
-     (global-hl-line-mode t)
+;; Highlight current line
+(global-hl-line-mode t)
 
-     ;; Show line number on the left hand side of the code
-     (global-linum-mode t)
+;; Show line number on the left hand side of the code
+(global-linum-mode t)
 
-     ;; Show matching parenthesis
-     (show-paren-mode t)
+;; Show matching parenthesis
+(show-paren-mode t)
 
-     ;; Detailed window title
-     (setq-default frame-title-format (list "%65b %f"))
-     (setq-default icon-title-format (list "%b"))
+;; Detailed window title
+(setq-default frame-title-format (list "%65b %f"))
+(setq-default icon-title-format (list "%b"))
    #+END_SRC
 
 
 ** Theme
 
    #+BEGIN_SRC emacs-lisp
-     (use-package color-theme-sanityinc-tomorrow
-       :config
-       (load-theme 'sanityinc-tomorrow-bright t)
-       )
+(use-package color-theme-sanityinc-tomorrow
+  :config
+  (load-theme 'sanityinc-tomorrow-bright t)
+  )
    #+END_SRC
 
 
@@ -269,26 +269,26 @@ Some of my configuration entries where borrowed from other people, see
    Use =moody= for a nice looking bottom modeline
 
    #+begin_src emacs-lisp
-     ;; (use-package moody
-     ;;   :config
-     ;;   (setq x-underline-at-descent-line t
-     ;;         moody-mode-line-height 10)
-     ;;   (moody-replace-mode-line-buffer-identification)
-     ;;  (moody-replace-vc-mode))
+;; (use-package moody
+;;   :config
+;;   (setq x-underline-at-descent-line t
+;;         moody-mode-line-height 10)
+;;   (moody-replace-mode-line-buffer-identification)
+;;  (moody-replace-vc-mode))
    #+end_src
 
 
    Tweak how some modeline elements are displayed
 
    #+begin_src emacs-lisp
-     ;; Show line and column number in mode line
-     (column-number-mode t)
-     (line-number-mode t)
-
-     ;; Show time in mode line
-     (setq display-time-24hr-format t)
-     (setq display-time-day-and-date t)
-     (display-time-mode t)
+;; Show line and column number in mode line
+(column-number-mode t)
+(line-number-mode t)
+
+;; Show time in mode line
+(setq display-time-24hr-format t)
+(setq display-time-day-and-date t)
+(display-time-mode t)
    #+end_src
 
 
@@ -296,15 +296,15 @@ Some of my configuration entries where borrowed from other people, see
    ensure that diminish is called only for modules that are installed
    and loaded.
    #+begin_src emacs-lisp
-     (use-package diminish
-       :config
-       (eval-after-load "company" '(diminish 'company-mode))
-       (eval-after-load "company-box" '(diminish 'company-box-mode))
-       (eval-after-load "undo-tree" '(diminish 'undo-tree-mode))
-       (eval-after-load "yasnippet" '(diminish 'yas-minor-mode))
-       (eval-after-load "which-key" '(diminish 'which-key-mode))
-       (diminish 'eldoc-mode)
-       )
+(use-package diminish
+  :config
+  (eval-after-load "company" '(diminish 'company-mode))
+  (eval-after-load "company-box" '(diminish 'company-box-mode))
+  (eval-after-load "undo-tree" '(diminish 'undo-tree-mode))
+  (eval-after-load "yasnippet" '(diminish 'yas-minor-mode))
+  (eval-after-load "which-key" '(diminish 'which-key-mode))
+  (diminish 'eldoc-mode)
+  )
    #+end_src
 
 
@@ -314,9 +314,9 @@ Some of my configuration entries where borrowed from other people, see
    possible next keys in the mini-buffer
 
    #+begin_src emacs-lisp
-     (use-package which-key
-       :config
-       (which-key-mode t))
+(use-package which-key
+  :config
+  (which-key-mode t))
    #+end_src
 
 
@@ -326,7 +326,7 @@ Some of my configuration entries where borrowed from other people, see
    we can redo/undo the buffer configuration
 
    #+begin_src emacs-lisp
-     (winner-mode t)
+(winner-mode t)
    #+end_src
 
 
@@ -339,24 +339,24 @@ Some of my configuration entries where borrowed from other people, see
 ** Basics
 
    #+BEGIN_SRC emacs-lisp
-     (use-package org
-       ;; :ensure org-plus-contrib
-       ;; :ensure org-tempo
-       :custom 
-       ;; Tab keeps indenting in src blocks
-       (org-src-tab-acts-natively t)
-       ;; IDO for completion when applicable
-       (org-completion-use-ido t)
-       :config
-       ;; (require 'org-tempo)
-       (add-hook 'org-mode-hook 
-                 '(lambda ()
-                    (setq org-file-apps
-                          '(("org" . emacs)
-                            ("rs"  . emacs)
-                            ("c"   . emacs)
-                            ("h"   . emacs)
-                            )))))
+(use-package org
+  ;; :ensure org-plus-contrib
+  ;; :ensure org-tempo
+  :custom 
+  ;; Tab keeps indenting in src blocks
+  (org-src-tab-acts-natively t)
+  ;; IDO for completion when applicable
+  (org-completion-use-ido t)
+  :config
+  ;; (require 'org-tempo)
+  (add-hook 'org-mode-hook 
+            '(lambda ()
+               (setq org-file-apps
+                     '(("org" . emacs)
+                       ("rs"  . emacs)
+                       ("c"   . emacs)
+                       ("h"   . emacs)
+                       )))))
    #+END_SRC
 
    #+RESULTS:
@@ -366,22 +366,22 @@ Some of my configuration entries where borrowed from other people, see
    Use =org-mode= for the initial scratch buffer
 
    #+begin_src emacs-lisp
-     (setq initial-major-mode 'org-mode)
+(setq initial-major-mode 'org-mode)
    #+end_src
 
    And set some keyboard shortcuts for links and agenda
 
    #+begin_src emacs-lisp
-     (global-set-key (kbd "C-c l") 'org-store-link)
-     (global-set-key (kbd "C-c a") 'org-agenda)
-     (global-set-key (kbd "C-c c") 'org-capture)
+(global-set-key (kbd "C-c l") 'org-store-link)
+(global-set-key (kbd "C-c a") 'org-agenda)
+(global-set-key (kbd "C-c c") 'org-capture)
    #+end_src
 
    Add shortcuts to quickly add code blocks using =C-,=
    
    #+begin_src emacs-lisp
-     (add-to-list 'org-structure-template-alist
-                 '("el" . "src emacs-lisp"))
+(add-to-list 'org-structure-template-alist
+             '("el" . "src emacs-lisp"))
    #+end_src
 
 
@@ -390,9 +390,9 @@ Some of my configuration entries where borrowed from other people, see
    Use bullets instead of asterisks
 
    #+begin_src emacs-lisp
-     (use-package org-bullets
-       :init
-       (add-hook 'org-mode-hook 'org-bullets-mode))
+(use-package org-bullets
+  :init
+  (add-hook 'org-mode-hook 'org-bullets-mode))
    #+end_src
 
 ** Task management
@@ -401,9 +401,9 @@ Some of my configuration entries where borrowed from other people, see
    dependencies as done before being able to mark an item as done
 
    #+begin_src emacs-lisp
-     (setq org-log-done 'time)
-     (setq org-enforce-todo-dependencies t)
-     (setq org-enforce-todo-checkbox-dependencies t)
+(setq org-log-done 'time)
+(setq org-enforce-todo-dependencies t)
+(setq org-enforce-todo-checkbox-dependencies t)
    #+end_src
 
    Set default task completion states to =TODO=, =WAITING= and
@@ -411,8 +411,8 @@ Some of my configuration entries where borrowed from other people, see
    I'm waiting for some inputs.
 
    #+begin_src emacs-lisp
-     (setq org-todo-keywords
-           '((sequence "TODO" "WAITING" "|" "DONE")))   
+(setq org-todo-keywords
+      '((sequence "TODO" "WAITING" "|" "DONE")))   
    #+end_src
 
    
@@ -421,36 +421,36 @@ Some of my configuration entries where borrowed from other people, see
     Index and archive are my main todo lists (index) and a list of archived (done) tasks.
 
     #+begin_src emacs-lisp
-      (setq org-directory "~/documents/org")
+(setq org-directory "~/documents/org")
 
-      (defun org-file-path (filename)
-        "Return the absolute address of an org file, given its relative name."
-        (concat (file-name-as-directory org-directory) filename))
+(defun org-file-path (filename)
+  "Return the absolute address of an org file, given its relative name."
+  (concat (file-name-as-directory org-directory) filename))
 
-      (setq org-index-file (org-file-path "index.org"))
-      (setq org-archive-location
-            (concat (org-file-path "archive.org") "::* From %s"))
+(setq org-index-file (org-file-path "index.org"))
+(setq org-archive-location
+      (concat (org-file-path "archive.org") "::* From %s"))
     #+end_src
 
     Then more specifics org files to add to the agenda list
     
     #+begin_src emacs-lisp
-      (setq org-agenda-files (list org-index-file
-                                   "~/.emacs.d/configuration.org"
-                                   (org-file-path "work.org")
-                                   (org-file-path "archive.org"))) ; Just in case I forget to mark a subtask as done and archive the main one
+(setq org-agenda-files (list org-index-file
+                             "~/.emacs.d/configuration.org"
+                             (org-file-path "work.org")
+                             (org-file-path "archive.org"))) ; Just in case I forget to mark a subtask as done and archive the main one
     #+end_src
 
     Hitting =C-c C-x C-s= will mark a todo as done and move it to an appropriate place in the archive.
 
     #+begin_src emacs-lisp
-      (defun hrs/mark-done-and-archive ()
-        "Mark the state of an org-mode item as DONE and archive it."
-        (interactive)
-        (org-todo 'done)
-        (org-archive-subtree))
+(defun hrs/mark-done-and-archive ()
+  "Mark the state of an org-mode item as DONE and archive it."
+  (interactive)
+  (org-todo 'done)
+  (org-archive-subtree))
 
-      (define-key org-mode-map (kbd "C-c C-x C-s") 'hrs/mark-done-and-archive)
+(define-key org-mode-map (kbd "C-c C-x C-s") 'hrs/mark-done-and-archive)
     #+end_src
 
     
@@ -459,13 +459,13 @@ Some of my configuration entries where borrowed from other people, see
    The week should begin today, not last Monday for the agenda view
 
    #+begin_src emacs-lisp
-     (setq org-agenda-start-on-weekday nil)
+(setq org-agenda-start-on-weekday nil)
    #+end_src
 
    I want to see more days in the agenda view
 
    #+begin_src emacs-lisp
-     (setq org-agenda-span 15)
+(setq org-agenda-span 15)
    #+end_src
 
 
@@ -475,12 +475,12 @@ Some of my configuration entries where borrowed from other people, see
    eventualy do later.
 
    #+begin_src emacs-lisp
-     (setq org-agenda-custom-commands
-           '(("a" "Agenda"
-              (
-               (agenda ""  ((org-agenda-skip-function '(org-agenda-skip-entry-if 'todo 'done))))
-               (alltodo "" ((org-agenda-skip-function '(org-agenda-skip-entry-if 'scheduled 'deadline 'todo 'done))))
-               ))))
+(setq org-agenda-custom-commands
+      '(("a" "Agenda"
+         (
+          (agenda ""  ((org-agenda-skip-function '(org-agenda-skip-entry-if 'todo 'done))))
+          (alltodo "" ((org-agenda-skip-function '(org-agenda-skip-entry-if 'scheduled 'deadline 'todo 'done))))
+          ))))
    #+end_src
 
 ** Capture 
@@ -489,23 +489,23 @@ Some of my configuration entries where borrowed from other people, see
    other things later
 
    #+begin_src emacs-lisp
-     (setq org-capture-templates
-           '(("f" "Finished book"
-              table-line (file "~/Documents/org/books-read.org")
-              "| %^{Title} | %^{Author} | %u |")
-
-             ("t" "Todo"
-              entry
-              (file+headline org-index-file "Tâches")
-              "* TODO %?\n:PROPERTIES:\nCREATED: %u\n:END:\n")
-
-             ("c" "Cycling"
-              table-line (file "~/Documents/org/cycling.org")
-              "| %t | balade | %^{prompt|standard|électrique} | %^{Distance} |")
-
-             ("w" "Cycling to work"
-              table-line (file "~/Documents/org/cycling.org")
-              "| %t | boulot | %^{prompt|électrique|standard} | 26.2 |")))
+(setq org-capture-templates
+      '(("f" "Finished book"
+         table-line (file "~/Documents/org/books-read.org")
+         "| %^{Title} | %^{Author} | %u |")
+
+        ("t" "Todo"
+         entry
+         (file+headline org-index-file "Tâches")
+         "* TODO %?\n:PROPERTIES:\nCREATED: %u\n:END:\n")
+
+        ("c" "Cycling"
+         table-line (file "~/Documents/org/cycling.org")
+         "| %t | balade | %^{prompt|standard|électrique} | %^{Distance} |")
+
+        ("w" "Cycling to work"
+         table-line (file "~/Documents/org/cycling.org")
+         "| %t | boulot | %^{prompt|électrique|standard} | 26.2 |")))
    #+end_src
 
 ** Export configuration
@@ -514,13 +514,19 @@ Some of my configuration entries where borrowed from other people, see
    using bootstrap template.
 
    #+begin_src emacs-lisp
-     ;; Add Beamer to export list
-     (require 'ox-beamer)
-     ;; And markdown
-     (require 'ox-md)
-
-     ;; bootstrap html
-     (use-package ox-twbs)
+;; Add Beamer to export list
+(require 'ox-beamer)
+;; And markdown
+(require 'ox-md)
+
+;; some HTML slide export engines
+(use-package ox-html5slide)
+(use-package ox-impress-js)
+(use-package ox-reveal )     
+(use-package ox-spectacle )
+
+;; bootstrap html
+(use-package ox-twbs)
    #+end_src
 
 
@@ -528,21 +534,21 @@ Some of my configuration entries where borrowed from other people, see
    [[https://pygments.org/][Pygments]] as an external tool), we need to change latex export commands.
 
    #+begin_src emacs-lisp
-     ;; Configure ox-latex to export source block using minted
-     ;; Setting minted cache to false as cache seems to fail when changing the output-directory
-     (add-to-list 'org-latex-packages-alist '("cache=false" "minted"))
-     (setq org-latex-listings 'minted)
-
-     (setq org-latex-pdf-process
-           '("pdflatex -shell-escape -interaction nonstopmode -output-directory %o %f"
-             "pdflatex -shell-escape -interaction nonstopmode -output-directory %o %f"
-             "pdflatex -shell-escape -interaction nonstopmode -output-directory %o %f"))
+;; Configure ox-latex to export source block using minted
+;; Setting minted cache to false as cache seems to fail when changing the output-directory
+(add-to-list 'org-latex-packages-alist '("cache=false" "minted"))
+(setq org-latex-listings 'minted)
+
+(setq org-latex-pdf-process
+      '("pdflatex -shell-escape -interaction nonstopmode -output-directory %o %f"
+        "pdflatex -shell-escape -interaction nonstopmode -output-directory %o %f"
+        "pdflatex -shell-escape -interaction nonstopmode -output-directory %o %f"))
    #+end_src
 
    For HTML source code highlight, use =htmlize=
 
    #+begin_src emacs-lisp
-     (use-package htmlize)
+(use-package htmlize)
    #+end_src
 
 
@@ -554,51 +560,51 @@ Some of my configuration entries where borrowed from other people, see
    its result in your org file.
 
    #+begin_src emacs-lisp
-     (use-package gnuplot)
-     (use-package gnuplot-mode)
-     (use-package ob-rust)
-
-     (org-babel-do-load-languages
-      'org-babel-load-languages
-      '((emacs-lisp . t)
-        (C . t)
-        (latex . t)
-        (gnuplot . t)
-        (dot . t)
-        (java . t)
-        (python . t)
-        (makefile . t)
-        (org . t)
-        (perl . t)
-        (sed . t)
-        (shell . t)
-        (rust . t)
-        ))
+(use-package gnuplot)
+(use-package gnuplot-mode)
+(use-package ob-rust)
+
+(org-babel-do-load-languages
+ 'org-babel-load-languages
+ '((emacs-lisp . t)
+   (C . t)
+   (latex . t)
+   (gnuplot . t)
+   (dot . t)
+   (java . t)
+   (python . t)
+   (makefile . t)
+   (org . t)
+   (perl . t)
+   (sed . t)
+   (shell . t)
+   (rust . t)
+   ))
    #+END_SRC
 
 
    Preserve indentation in source block (useful for makefiles to preserve tabs for example)
    #+begin_src emacs-lisp
-     (setq org-src-preserve-indentation t)
+(setq org-src-preserve-indentation t)
    #+end_src
 
    Don't ask before evaluating
 
    #+begin_src emacs-lisp
-     (setq org-confirm-babel-evaluate nil)
+(setq org-confirm-babel-evaluate nil)
    #+end_src
 
    Correctly associate =dot= language with the correct major-mode inside org.
 
    #+begin_src emacs-lisp
-     (use-package graphviz-dot-mode)
-     (add-to-list 'org-src-lang-modes '("dot" . graphviz-dot))
+(use-package graphviz-dot-mode)
+(add-to-list 'org-src-lang-modes '("dot" . graphviz-dot))
    #+end_src
 
    Make org mode correctly export quotes
 
    #+begin_src emacs-lisp
-     (setq org-export-with-smart-quotes t)
+(setq org-export-with-smart-quotes t)
    #+end_src
 
 
@@ -613,19 +619,19 @@ Some of my configuration entries where borrowed from other people, see
   all buffers. I also set =M-/= to trigger =company-complete=
 
   #+begin_src emacs-lisp
-    (use-package company
-      :ensure company-lsp 
-      :ensure company-box
-      :ensure company-php 
-      :ensure company-web 
-      :init
-      (global-company-mode t)
-      (global-set-key (kbd "M-/") 'company-complete)
-      ;; Complete quite soon
-      :custom
-      (company-minimum-prefix-length 3)
-      (company-idle-delay 0.1)
-      )
+(use-package company
+  :ensure company-lsp 
+  :ensure company-box
+  :ensure company-php 
+  :ensure company-web 
+  :init
+  (global-company-mode t)
+  (global-set-key (kbd "M-/") 'company-complete)
+  ;; Complete quite soon
+  :custom
+  (company-minimum-prefix-length 3)
+  (company-idle-delay 0.1)
+  )
   #+end_src
 
   #+RESULTS:
@@ -636,9 +642,9 @@ Some of my configuration entries where borrowed from other people, see
   completing symbols in source code.
 
   #+begin_src emacs-lisp
-    (use-package company-box
-      :ensure frame-local
-      :hook (company-mode . company-box-mode))
+(use-package company-box
+  :ensure frame-local
+  :hook (company-mode . company-box-mode))
   #+end_src
 
   Now some backends I use. Mainly lsp, php and web
@@ -646,10 +652,10 @@ Some of my configuration entries where borrowed from other people, see
   only when it's needed.
 
   #+begin_src emacs-lisp
-    (use-package company-php)
-    (use-package company-web)
-    (use-package company-lsp
-      :defer t)
+(use-package company-php)
+(use-package company-web)
+(use-package company-lsp
+  :defer t)
   #+end_src
 
 
@@ -663,11 +669,11 @@ Some of my configuration entries where borrowed from other people, see
    projects. I bind =C-c t= to toggle treemacs panel.
 
    #+begin_src emacs-lisp
-     (use-package treemacs
-       :custom
-       (treemacs--icon-size 16)
-       :bind ("C-c t" . treemacs-select-window)
-       )
+(use-package treemacs
+  :custom
+  (treemacs--icon-size 16)
+  :bind ("C-c t" . treemacs-select-window)
+  )
    #+end_src
 
 ** Projectile
@@ -679,16 +685,16 @@ Some of my configuration entries where borrowed from other people, see
    Bind =C-c p= as the prefix for projectile command keybinds.
 
    #+begin_src emacs-lisp
-     (use-package projectile
-       :config
-       (define-key projectile-mode-map (kbd "C-c p") 'projectile-command-map)
-       (projectile-mode t))
+(use-package projectile
+  :config
+  (define-key projectile-mode-map (kbd "C-c p") 'projectile-command-map)
+  (projectile-mode t))
    #+end_src
 
    As I use =treemacs=, adds =treemacs-projectile= plugin
 
    #+begin_src emacs-lisp
-     (use-package treemacs-projectile)
+(use-package treemacs-projectile)
    #+end_src
 
 * Snippets
@@ -697,10 +703,10 @@ Some of my configuration entries where borrowed from other people, see
   preload all snippets by [[https://github.com/AndreaCrotti/yasnippet-snippets][AndreaCrotti]] (=yasnippet-snippets= package).
 
   #+begin_src emacs-lisp
-    (use-package yasnippet
-      :init
-      (yas-global-mode))
-    (use-package yasnippet-snippets)
+(use-package yasnippet
+  :init
+  (yas-global-mode))
+(use-package yasnippet-snippets)
   #+end_src
 
 
@@ -714,20 +720,20 @@ Some of my configuration entries where borrowed from other people, see
 ** LSP
 
    #+begin_src emacs-lisp
-     (use-package lsp-mode
-       :hook (
-              c++-mode
-              python-mode
-              rust-mode
-              )
-       :config
-       (lsp-headerline-breadcrumb-mode t))
+(use-package lsp-mode
+  :hook (
+         c++-mode
+         python-mode
+         rust-mode
+         )
+  :config
+  (lsp-headerline-breadcrumb-mode t))
    #+end_src
 
    For displaying more information directly in the buffer, I use =lsp-ui=
 
    #+begin_src emacs-lisp
-     (use-package lsp-ui)
+(use-package lsp-ui)
    #+end_src
 
 *** Integration with treemacs
@@ -735,9 +741,9 @@ Some of my configuration entries where borrowed from other people, see
     LSP can integrate with treemacs to display packages, class, symbols and such.
 
     #+begin_src emacs-lisp
-      (use-package lsp-treemacs
-        :custom
-        (lsp-treemacs-sync-mode 1))
+(use-package lsp-treemacs
+  :custom
+  (lsp-treemacs-sync-mode 1))
     #+end_src
 
 
@@ -747,13 +753,13 @@ Some of my configuration entries where borrowed from other people, see
    flycheck if available to show code diagnosis.
 
    #+begin_src emacs-lisp
-     (use-package flycheck)
+(use-package flycheck)
    #+end_src
 
    For languages that do not have LSP yet, we can add some flycheck extensions
 
    #+begin_src emacs-lisp
-     (use-package flycheck-perl6)
+(use-package flycheck-perl6)
    #+end_src
 
 
@@ -766,29 +772,29 @@ Some of my configuration entries where borrowed from other people, see
     called to format buffer when saving.
 
     #+begin_src emacs-lisp
-      (use-package rust-mode
-        :custom
-        (lsp-rust-server 'rls)
-;        (rust-format-on-save t)
+(use-package rust-mode
+  :custom
+  (lsp-rust-server 'rls)
+                                        ;        (rust-format-on-save t)
 
-        )
+  )
     #+end_src
 
     For this to work, you need to install =rust-analyzer= and =rustmft=. 
 
     #+begin_src bash
-      echo "Installing rust-analyzer"
-      git clone https://github.com/rust-analyzer/rust-analyzer.git && cd rust-analyzer
-      cargo xtask install --server || echo "failed"
-      echo "Installing rustfmt"
-      cargo install rustfmt || echo "failed"
+echo "Installing rust-analyzer"
+git clone https://github.com/rust-analyzer/rust-analyzer.git && cd rust-analyzer
+cargo xtask install --server || echo "failed"
+echo "Installing rustfmt"
+cargo install rustfmt || echo "failed"
     #+end_src
 
 
     Adds cargo installed binaries to exec path
 
     #+begin_src emacs-lisp
-      (setq exec-path (cons "~/.cargo/bin" exec-path))
+(setq exec-path (cons "~/.cargo/bin" exec-path))
     #+end_src
 
 *** Lua
@@ -796,7 +802,7 @@ Some of my configuration entries where borrowed from other people, see
     Simply add =lua-mode=
 
     #+begin_src emacs-lisp
-      (use-package lua-mode)
+(use-package lua-mode)
     #+end_src
 
 *** Docker
@@ -804,12 +810,12 @@ Some of my configuration entries where borrowed from other people, see
     For dockerfiles and docker-compose files, install some docker packages
 
     #+begin_src emacs-lisp
-      (use-package dockerfile-mode)
-      (use-package docker-compose-mode)
-      (use-package docker)
-      (use-package docker-api)
-      (use-package docker-cli)
-      (use-package docker-tramp)
+(use-package dockerfile-mode)
+(use-package docker-compose-mode)
+(use-package docker)
+(use-package docker-api)
+(use-package docker-cli)
+(use-package docker-tramp)
     #+end_src
 
 *** Web
@@ -827,20 +833,20 @@ Some of my configuration entries where borrowed from other people, see
       the web browser
 
     #+begin_src emacs-lisp
-      (use-package web-mode
-        :config
-        (add-to-list 'auto-mode-alist '("\\.html?\\'" . web-mode))
-        (add-to-list 'auto-mode-alist '("\\.phtml\\'" . web-mode))
-        (add-to-list 'auto-mode-alist '("\\.tpl\\.php\\'" . web-mode))
-        (add-to-list 'auto-mode-alist '("\\.[agj]sp\\'" . web-mode))
-        (add-to-list 'auto-mode-alist '("\\.as[cp]x\\'" . web-mode))
-        (add-to-list 'auto-mode-alist '("\\.erb\\'" . web-mode))
-        (add-to-list 'auto-mode-alist '("\\.mustache\\'" . web-mode))
-        (add-to-list 'auto-mode-alist '("\\.djhtml\\'" . web-mode))
-        )
-      (use-package rainbow-mode)
-      (use-package simple-httpd)
-      (use-package impatient-mode)
+(use-package web-mode
+  :config
+  (add-to-list 'auto-mode-alist '("\\.html?\\'" . web-mode))
+  (add-to-list 'auto-mode-alist '("\\.phtml\\'" . web-mode))
+  (add-to-list 'auto-mode-alist '("\\.tpl\\.php\\'" . web-mode))
+  (add-to-list 'auto-mode-alist '("\\.[agj]sp\\'" . web-mode))
+  (add-to-list 'auto-mode-alist '("\\.as[cp]x\\'" . web-mode))
+  (add-to-list 'auto-mode-alist '("\\.erb\\'" . web-mode))
+  (add-to-list 'auto-mode-alist '("\\.mustache\\'" . web-mode))
+  (add-to-list 'auto-mode-alist '("\\.djhtml\\'" . web-mode))
+  )
+(use-package rainbow-mode)
+(use-package simple-httpd)
+(use-package impatient-mode)
     #+end_src
 
 *** LaTeX
@@ -848,23 +854,23 @@ Some of my configuration entries where borrowed from other people, see
     Enable =reftex= whenever =tex-mode= is activated
 
     #+begin_src emacs-lisp
-      (add-hook 'latex-mode-hook 'reftex-mode)
+(add-hook 'latex-mode-hook 'reftex-mode)
     #+end_src
 
     Use =auctex= for better experience editing latex files
 
     #+begin_src emacs-lisp
-      (use-package auctex
-        :ensure auctex-latexmk
-        :defer t
-        )
+(use-package auctex
+  :ensure auctex-latexmk
+  :defer t
+  )
     #+end_src
     
     If using macos, add mactex to =exec-path=
 
     #+begin_src emacs-lisp
-      (when (eq system-type 'darwin)
-        (setq exec-path (cons "/Library/TeX/texbin" exec-path)))
+(when (eq system-type 'darwin)
+  (setq exec-path (cons "/Library/TeX/texbin" exec-path)))
     #+end_src
 
 *** Ningx configuration
@@ -872,7 +878,7 @@ Some of my configuration entries where borrowed from other people, see
     A mode to edit [[https://nginx.org/][nginx]] configuration files.
 
     #+begin_src emacs-lisp
-      (use-package nginx-mode)
+(use-package nginx-mode)
     #+end_src
 
 ** Magit
@@ -888,19 +894,19 @@ Some of my configuration entries where borrowed from other people, see
      needed
 
    #+begin_src emacs-lisp
-     (use-package magit
-       :config
-       (magit-auto-revert-mode t)
-       (magit-save-repository-buffers t)
-       :bind ("C-x g" . magit-status)
-       )
+(use-package magit
+  :config
+  (magit-auto-revert-mode t)
+  (magit-save-repository-buffers t)
+  :bind ("C-x g" . magit-status)
+  )
    #+end_src
 
 
 *** Protocol buffers
 
     #+begin_src emacs-lisp
-      (use-package protobuf-mode)
+(use-package protobuf-mode)
     #+end_src
 
 * Spell checking
@@ -908,7 +914,7 @@ Some of my configuration entries where borrowed from other people, see
   First, set =aspell= to be the spell checking program instead of =ispell=
 
   #+begin_src emacs-lisp
-    (setq ispell-program-name "aspell")
+(setq ispell-program-name "aspell")
   #+end_src
 
   #+RESULTS:
@@ -917,29 +923,29 @@ Some of my configuration entries where borrowed from other people, see
   Then define a command that will run flyspell on the buffer *and* activate it
 
   #+begin_src emacs-lisp
-    (defun mh/spellcheck ()
-      (interactive)
-      (flyspell-mode t)
-      (flyspell-buffer)
-      )
+(defun mh/spellcheck ()
+  (interactive)
+  (flyspell-mode t)
+  (flyspell-buffer)
+  )
   #+end_src
 
   And define a global binding to call it
   
   #+begin_src emacs-lisp
-    (global-set-key (kbd "C-c s") 'mh/spellcheck)
+(global-set-key (kbd "C-c s") 'mh/spellcheck)
   #+end_src
 
   Binding to fix a word /then/ go to the next error. Special syntax
   =[?\C-\$]= is used to protect the =$= sign
 
   #+begin_src emacs-lisp
-    (defun mh/cycle-spellcheck ()
-      (interactive)
-      (flyspell-goto-next-error)
-      (ispell-word))
+(defun mh/cycle-spellcheck ()
+  (interactive)
+  (flyspell-goto-next-error)
+  (ispell-word))
 
-    (global-set-key (kbd "C-$") 'mh/cycle-spellcheck)
+(global-set-key (kbd "C-$") 'mh/cycle-spellcheck)
   #+end_src
 
 
@@ -948,20 +954,20 @@ Some of my configuration entries where borrowed from other people, see
   Adds =/usr/local/bin= to Emacs =exec-path=
 
   #+begin_src emacs-lisp
-    (setq exec-path (cons "/usr/local/bin" exec-path))
+(setq exec-path (cons "/usr/local/bin" exec-path))
   #+end_src
 
   Starts Emacs server so that we can use =emacsclient= for opening new
   files.
 
   #+begin_src emacs-lisp
-    (server-start)
+(server-start)
   #+end_src
 
   A handy way of starting Emacs from the shell is then to call 
 
   #+begin_src bash
-    emacsclient -a emacs ...
+emacsclient -a emacs ...
   #+end_src
 
   This will attempt to connect to Emacs server and run Emacs if the
@@ -981,23 +987,23 @@ Some of my configuration entries where borrowed from other people, see
 
   This will print emacs start time as well as the count of GC calls
   #+begin_src emacs-lisp
-    (add-hook 'emacs-startup-hook
-              (lambda ()
-                (message "Emacs ready in %s with %d garbage collections."
-                         (format "%.2f seconds"
-                                 (float-time
-                                  (time-subtract after-init-time before-init-time)))
-                         gcs-done)))
+(add-hook 'emacs-startup-hook
+          (lambda ()
+            (message "Emacs ready in %s with %d garbage collections."
+                     (format "%.2f seconds"
+                             (float-time
+                              (time-subtract after-init-time before-init-time)))
+                     gcs-done)))
   #+end_src
 
   [[https://github.com/jschaf/esup][ESup]] is an emacs profiler
 
   #+begin_src emacs-lisp
-    (use-package esup
-      :ensure t
-      ;; To use MELPA Stable use ":pin mepla-stable",
-      :pin melpa
-      :commands (esup))
+(use-package esup
+  :ensure t
+  ;; To use MELPA Stable use ":pin mepla-stable",
+  :pin melpa
+  :commands (esup))
   #+end_src
 
   #+RESULTS:
@@ -1009,7 +1015,7 @@ Some of my configuration entries where borrowed from other people, see
   Set GC threshold to something more reasonable for standard use.
 
   #+begin_src emacs-lisp
-    (setq gc-cons-threshold (* 2 1024 1024))
+(setq gc-cons-threshold (* 2 1024 1024))
   #+end_src