diff --git a/alacritty/alacritty.yml b/alacritty/alacritty.yml
index a88f6e6..5302b5b 100755
--- a/alacritty/alacritty.yml
+++ b/alacritty/alacritty.yml
@@ -219,7 +219,7 @@ mouse:
   # If this is `true`, the cursor is temporarily hidden when typing.
   hide_when_typing: false
 
-  url:
+  hints:
     # URL launcher
     #
     # This program is executed when clicking on a text which is recognized as a URL.
diff --git a/emacs/config.el b/emacs/config.el
index f78bd11..26d56f2 100755
--- a/emacs/config.el
+++ b/emacs/config.el
@@ -32,11 +32,6 @@
 
 (defvar my/wiki-asset-directory-name "assets")
 
-(defun align-non-space (BEG END)
-  "Align non-space columns in region BEG END."
-  (interactive "r")
-  (align-regexp BEG END "\\(\\s-*\\)\\S-+" 1 1 t))
-
 (defun my/create-assets-folder ()
   "A quick convenient function to create an assets folder in the wiki folder."
   (interactive)
@@ -95,11 +90,15 @@
 
                                 ("l" "literature" plain "%?"
                                  :if-new
-                                 (file+head ,(f-join "literature" "%<%Y-%m-%d-%H-%M-%S>")"#+title: ${title}
+                                 (file+head ,(f-join "literature" "%<%Y-%m-%d-%H-%M-%S>.org") "#+title: ${title}
 #+date: \"%<%Y-%m-%d %T %:z>\"
 #+date_modified: \"%<%Y-%m-%d %T %:z>\"
 #+language: en")
-                                 :unnarrowed t))
+                                 :unnarrowed t)
+
+                                ("d" "dailies" entry "* %?"
+                                 :if-new
+                                 (file+head ,(expand-file-name "%<%Y-%m-%d>.org" org-roam-dailies-directory) "#+title: %<%Y-%m-%d>\n")))
 
    org-roam-dailies-capture-templates `(("d" "default" entry "* %?"
                                          :if-new
diff --git a/emacs/modules/tools/wiki/README.org b/emacs/modules/tools/wiki/README.org
index 65e470e..65066b3 100644
--- a/emacs/modules/tools/wiki/README.org
+++ b/emacs/modules/tools/wiki/README.org
@@ -1,6 +1,6 @@
 #+title: tools/wiki
 #+date: "2021-05-05 00:27:26 +08:00"
-#+date_modified: "2021-05-05 01:52:39 +08:00"
+#+date_modified: "2021-05-08 12:28:46 +08:00"
 #+language: en
 
 
@@ -8,14 +8,16 @@
 * Description
 
 This module set up my personal wiki configuration with Emacs primarily with org-roam.
+Just like Emacs itself, tried my best to make it fully configurable.
 The setup uses org-roam v2.
 
 
 ** Module flags
 
 - ~+anki~ enables Anki cards editing with [[https://github.com/louietan/anki-editor/][anki-editor]].
-- ~+markdown~ adds Markdown support in org-roam.
+- ~+biblio~ enables reference management with [[https://github.com/jkitchin/org-ref][org-ref]].
 - ~+dendron~ adds [[https://dendron.so/][Dendron]]-inspired features with [[https://github.com/vicrdguez/dendroam][dendroam]].
+- ~+markdown~ adds Markdown support in org-roam.
 
 
 
@@ -25,6 +27,7 @@ The setup uses org-roam v2.
 - [[https://github.com/louietan/anki-editor/][anki-editor]]
 - [[https://github.com/vicrdguez/dendroam][dendroam]]
 - [[https://github.com/nobiot/md-roam][md-roam]]
+- [[https://github.com/jkitchin/org-ref][org-ref]]
 
 
 
diff --git a/emacs/modules/tools/wiki/config.el b/emacs/modules/tools/wiki/config.el
index 21faf5c..3d45ad7 100644
--- a/emacs/modules/tools/wiki/config.el
+++ b/emacs/modules/tools/wiki/config.el
@@ -9,26 +9,6 @@
 ;;; Code:
 (defvar +wiki-directory "~/wiki")
 
-(defvar +anki-cards-directory-name "cards")
-(defvar +structured-notes-directory-name "structured")
-
-(defvar +anki-cards-directory (f-join +wiki-directory +anki-cards-directory-name))
-(defvar +structured-notes-directory (f-join +wiki-directory +structured-notes-directory-name))
-
-(defun +anki-editor-push-all-notes-to-anki ()
-  (interactive)
-  (anki-editor-push-notes nil nil (directory-files-recursively +anki-cards-directory "\\.*org" nil)))
-
-(defun +anki-editor-reset-note () "Reset the Anki note in point by deleting the note ID and the deck."
-  (interactive)
-  (org-entry-delete (point) anki-editor-prop-note-id)
-  (org-entry-delete (point) anki-editor-prop-deck))
-
-(defun +anki-editor-reset-all-notes ()
-  "Reset the Anki notes in the current buffer by deleting the note ID and the deck."
-  (interactive)
-  (anki-editor-map-note-entries #'+anki-editor-reset-note))
-
 (use-package! org-roam
   :hook (org-load . org-roam-mode)
   :commands
@@ -66,30 +46,48 @@
         org-roam-dailies-directory (f-join +wiki-directory "daily"))
   (org-roam-setup))
 
-(use-package! anki-editor
-  :hook (org-mode . anki-editor-mode)
-  :preface
-  (defvar +wiki-directory nil)
-  :init
-  (map! :localleader
-        :map org-mode-map
-        (:prefix ("C" . "Anki cards")
-         "p" #'anki-editor-push-notes
-         "P" #'+anki-editor-push-all-notes-to-anki
-         "r" #'anki-editor-retry-failure-notes
-         "i" #'anki-editor-insert-note
-         "I" #'anki-editor-cloze-region
-         "e" #'anki-editor-export-subtree-to-html
-         "d" #'+anki-editor-reset-note
-         "D" #'+anki-editor-reset-all-notes))
-  :config
-  (setq anki-editor-create-decks 't
-        +anki-cards-directory (f-join +wiki-directory +anki-cards-directory-name)))
+(when (featurep! +anki)
+  (defvar +anki-cards-directory-name "cards")
+  (defvar +anki-cards-directory (f-join +wiki-directory +anki-cards-directory-name))
+  (defun +anki-editor-push-all-notes-to-anki ()
+    (interactive)
+    (anki-editor-push-notes nil nil (directory-files-recursively +anki-cards-directory "\\.*org" nil)))
+  (defun +anki-editor-reset-note ()
+    "Reset the Anki note in point by deleting the note ID and the deck."
+    (interactive)
+    (org-entry-delete (point) anki-editor-prop-note-id)
+    (org-entry-delete (point) anki-editor-prop-deck))
+  (defun +anki-editor-reset-all-notes ()
+    "Reset the Anki notes in the current buffer by deleting the note ID and the deck."
+    (interactive)
+    (anki-editor-map-note-entries #'+anki-editor-reset-note))
+  (use-package! anki-editor
+    :hook (org-mode . anki-editor-mode)
+    :preface
+    (defvar +wiki-directory nil)
+    :init
+    (map! :localleader
+          :map org-mode-map
+          (:prefix ("C" . "Anki cards")
+           "p" #'anki-editor-push-notes
+           "P" #'+anki-editor-push-all-notes-to-anki
+           "r" #'anki-editor-retry-failure-notes
+           "i" #'anki-editor-insert-note
+           "I" #'anki-editor-cloze-region
+           "e" #'anki-editor-export-subtree-to-html
+           "d" #'+anki-editor-reset-note
+           "D" #'+anki-editor-reset-all-notes))
+    :config
+    (setq anki-editor-create-decks 't
+          +anki-cards-directory (f-join +wiki-directory +anki-cards-directory-name))))
 
-(use-package! dendroam
-  :after org-roam
-  :preface (defvar +wiki-directory nil)
-  :config
-  (setq +structured-notes-directory (f-join +wiki-directory +structured-notes-directory-name)))
+(when (featurep! +dendron)
+  (defvar +structured-notes-directory-name "structured")
+  (defvar +structured-notes-directory (f-join +wiki-directory +structured-notes-directory-name))
+  (use-package! dendroam
+    :after org-roam
+    :preface (defvar +wiki-directory nil)
+    :config
+    (setq +structured-notes-directory (f-join +wiki-directory +structured-notes-directory-name))))
 
 ;;; config.el ends here
diff --git a/emacs/modules/tools/wiki/packages.el b/emacs/modules/tools/wiki/packages.el
index cd7bf7b..56e1c0d 100644
--- a/emacs/modules/tools/wiki/packages.el
+++ b/emacs/modules/tools/wiki/packages.el
@@ -5,6 +5,10 @@
 (package! org-roam
   :recipe (:host github :repo "org-roam/org-roam" :branch "v2"))
 
+(when (featurep! +biblio)
+  (package! org-ref
+    :recipe (:host github :repo "jkitchin/org-ref")))
+
 (when (featurep! +anki)
   (package! anki-editor
     :recipe (:host github
diff --git a/nvim/init.vim b/nvim/init.vim
index 45213e4..42c3ad5 100755
--- a/nvim/init.vim
+++ b/nvim/init.vim
@@ -48,6 +48,9 @@ endif
 
 let g:deoplete#enable_at_startup = 1
 
+" A linting engine and an LSP client.
+Plug 'dense-analysis/ale'
+
 " One of the most popular plugins.
 " Allows to create more substantial status bars.
 Plug 'vim-airline/vim-airline'