Update GNUmakefile

- Add the ‘dunst’, ‘zsh’, ‘mcron’, and ‘mbsync’ modules.

- Tell Make that any ‘*.el’ files ar “precious”, meaning that when a ‘.elc’ file
  was generated from a ‘.el’ file that was itself generated from a ‘.org’ file,
  the ‘.el’ file isn't just an intermediate file and should not be deleted.

- Change the ‘install’ and ‘clean’ to use the ‘*-stow’ and ‘*-clean’ rules set
  up for each module.

- Add configuration for ‘outline-minor-mode’ and change the headings to adhere
  to that configuration.

- Stop using the ‘build/’ directory, tangle all the files to the same directory
  as the source files, and use stow, not cp, to install them. The only exception
  is the XDG files, which now have their specific ‘xdg-stow’ rule. This is
  necessary because programs using these files will overwrite a symbolic link
  they find and replace it with a new file, overwriting my settings.

- Add some files that were missing, and rename some files to follow the existing
  convention to make them easy to tangle.

6 files changed, 124 insertions, 60 deletions

diff --git a/GNUmakefile b/GNUmakefile
index d63de98..5d25714 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -1,9 +1,11 @@
-MODULES=xmodmap emacs xdg shepherd
+MODULES=xmodmap emacs xdg shepherd dunst zsh mcron mbsync
 
 STOW = stow
 EMACS = emacs
 SCHEME_IMPLEMENTATION = guile
 
+.PRECIOUS: %.el
+
 define tangle =
 	@echo -e "\e[35mOBT\e[0m" $<
 	@$(EMACS) -quick -batch \
@@ -18,14 +20,8 @@ endef
 
 all: $(MODULES)
 
-install:
-	cp --recursive --verbose build/. ~/
-
-clean:
-	rm -r build
-
-zsh:
-	$(MAKE) -C $@
+install: $(addsuffix -stow,$(MODULES))
+clean: $(addsuffix -clean,$(MODULES))
 
 before-%-install:				# Dummy recipe
 	@true
@@ -39,7 +35,7 @@ before-%-install:				# Dummy recipe
 %-uninstall:
 	$(STOW) -D $(subst -uninstall,,$@)
 
-# Picom
+## Picom
 
 picom: picom/.config/picom.conf
 
@@ -49,31 +45,22 @@ picom/.config/picom.conf: picom/.config/picom.org
 picom-clean:
 	rm -f picom/.config/picom.conf
 
-#########
-# Emacs #
-#########
+## Emacs
 
-emacs: build/.config/shepherd/init.d/ build/.config/shepherd/init.d/emacs.scm \
-       emacs/.config/emacs/init.elc
-
-build/.config/shepherd/init.d/emacs.scm: emacs/.config/shepherd/init.d/emacs.org
-	$(call tangle)
+emacs: emacs/.config/shepherd/init.d/emacs.scm emacs/.config/emacs/init.elc
 
-###########
-# Xmodmap #
-###########
+emacs-clean:
+	rm -f emacs/.config/shepherd/init.d/emacs.scm emacs/.config/emacs/init.el \
+	    emacs/.config/emacs/init.elc
 
-xmodmap: build/ build/.Xmodmap
+## Xmodmap
 
-build/.Xmodmap: xmodmap/Xmodmap.org
-	$(call tangle,fundamental)
+xmodmap: xmodmap/.Xmodmap
 
 xmodmap-clean:
-	rm -f build/.Xmodmap
+	rm -f xmodmap/.Xmodmap
 
-#########
-# Cower #
-#########
+## Cower
 
 cower: cower/.config/cower/config
 
@@ -83,9 +70,7 @@ cower/.config/cower/config: cower/.config/cower/config.org
 cower-clean:
 	rm -f cower/.config/cower/config
 
-#############
-# Mowedline #
-#############
+## Mowedline
 
 mowedline: mowedline/.config/mowedline/init.scm
 
@@ -96,59 +81,63 @@ mowedline/.config/mowedline/init.scm: mowedline/.config/mowedline/init.org
 mowedline-clean:
 	rm -f mowedline/.config/mowedline/init.scm
 
-#########
-# Dunst #
-#########
+## Dunst
 
 dunst: dunst/.config/dunst/dunstrc
 
-dunst/.config/dunst/dunstrc: dunst/.config/dunst/dunstrc.org
-	$(call tangle,conf-unix)
-
-dunst-clean:
-	rm -f dunst/.config/dunst/dunstrc
-
-# X11
+## X11
 
 x11-install: lib-install x11/dot-x11-0-1-any.pkg.tar.xz
 
 x11/dot-x11-0-1-any.pkg.tar.xz: x11/PKGBUILD
 	cd x11 && makepkg -sicf
 
-#######
-# XDG #
-#######
+## XDG
 
-xdg: build/.config/ build/.config/mimeapps.list build/.config/user-dirs.dirs \
-     build/.config/user-dirs.locale
+xdg: xdg/.config/mimeapps.list xdg/.config/user-dirs.dirs \
+     xdg/.config/user-dirs.locale
 
-build/.config/mimeapps.list: xdg/.config/mimeapps.list.org
-	$(call tangle)
+# These files shouldn't be stowed because the applications managing/using them
+# immediately replace the symbolic links with new files and the settings in them
+# are lost.
+xdg-stow:
+	cp xdg/.config/mimeapps.list xdg/.config/user-dirs.dirs xdg/.config/user-dirs.locale $(HOME)/.config/
 
-build/.config/user-dirs.dirs: xdg/.config/user-dirs.dirs.org
-	$(call tangle)
+## Shepherd
 
-build/.config/user-dirs.locale: xdg/.config/user-dirs.locale.org
-	$(call tangle)
+shepherd: shepherd/.config/shepherd/init.scm
 
-# Shepherd
+## Mcron
 
-shepherd: build/.config/shepherd/ build/.config/shepherd/init.scm
+mcron: mcron/.config/shepherd/init.d/mcron.scm
 
-build/.config/shepherd/init.scm: shepherd/.config/shepherd/init.org
-	$(call tangle)
+## Mbsync
+
+mbsync: mbsync/.config/cron/mbsync.guile
+
+## ZSH
 
-# Helper
+zsh: zsh/.profile zsh/.zshrc zsh/.zsh/functions/unzip.zwc \
+     zsh/.zsh/functions/x-yank.zwc zsh/.zsh/functions/x-copy-region-as-kill.zwc
+
+## Helper
 
 %.el: %.org
 	$(call tangle,emacs-lisp)
 
 %.elc: %.el
 	@echo -e "\e[36mELC\e[0m" $<
-	$(EMACS) -batch -f batch-byte-compile $<
+	$(EMACS) -batch -f package-initialize -f batch-byte-compile $<
 
 %: %.org
 	$(call tangle)
 
-%/:
-	mkdir -p $@
+.%: %.org
+	$(call tangle)
+
+%.zwc: %
+	zsh -c "zcompile $@ $^"
+
+# Local Variables:
+# outline-regexp: "##+"
+# End:
diff --git a/emacs/.config/emacs/init.org b/emacs/.config/emacs/init.org
new file mode 100644
index 0000000..ff7186d
--- /dev/null
+++ b/emacs/.config/emacs/init.org
@@ -0,0 +1,53 @@
+#+TITLE: Emacs Configuration
+
+First, lexical binding must be enabled. This is better for performance, but also makes variable binding behave more as expected, and allows the creation of closures.
+
+#+begin_src emacs-lisp :padline no
+  ;; -*- lexical-binding: t; -*-
+#+end_src
+
+#+begin_src emacs-lisp
+  (require 'oni-core)
+  (require 'oni-gui)
+#+end_src
+
+Store all auto-save files in =$XDG_DATA_HOME/emacs/auto-save-list= to prevent them from clogging up =$XDG_CONFIG_HOME/emacs/=. The XDG specification says that if =XDG_DATA_HOME= hasn't been specified a default of =~/.local/share= should be used.
+
+#+begin_src emacs-lisp
+  (add-to-list
+   'auto-save-file-name-transforms
+   `(,(rx (zero-or-more any))
+     ,(concat (or (getenv "XDG_DATA_HOME")
+                  (expand-file-name "~/.local/share"))
+              "/emacs/auto-save-list")
+     t)
+   t)
+#+end_src
+
+Use =hunspell= instead of the default =aspell=. Hunspell is used by LibreOffice and other programs too. So far (at least through Emacs) it doesn't recognize the =’= as an apostrophe and I have to use ='= in org-mode if I want spell checking to accept word contractions in English.
+
+#+begin_src emacs-lisp
+  (eval-when-compile (require 'ispell))
+  (with-eval-after-load 'ispell
+    (setq ispell-program-name "hunspell"
+          ispell-really-hunspell t))
+#+end_src
+
+Electric quote uses pretty quoting characters =’=, =‘=, =”=, and =“= instead of ='= and ="=, but when I'm in the middle of a word I don't want to use =’= (right single quotation mark), but ='= (apostrophe), which provides better results with spellchecking. So here is a function that checks whether the character before the previous is a word character.
+
+#+begin_src emacs-lisp
+  (defun oni-in-word-p ()
+    "Check whether the character just typed was part of a word."
+    (save-excursion
+      (backward-char)
+      (looking-back (rx word) (1- (point)))))
+#+end_src
+
+Now that I can check whether or not I'm typing a word, I can tell =electric-quote-mode= not to use =’= in that case.
+
+#+begin_src emacs-lisp
+  (with-eval-after-load 'electric
+    (add-hook 'electric-quote-inhibit-functions #'oni-in-word-p))
+#+end_src
+
+So now that that's settled, I should be writing ='= in words like “shouldn't'' and =’= otherwise. And spellchecking should work just fine.
diff --git a/emacs/.config/shepherd/init.d/emacs.org b/emacs/.config/shepherd/init.d/emacs.scm.org
index 11bef69..11bef69 100644
--- a/emacs/.config/shepherd/init.d/emacs.org
+++ b/emacs/.config/shepherd/init.d/emacs.scm.org
diff --git a/mbsync/.config/cron/mbsync.guile.org b/mbsync/.config/cron/mbsync.guile.org
new file mode 100644
index 0000000..1ca7508
--- /dev/null
+++ b/mbsync/.config/cron/mbsync.guile.org
@@ -0,0 +1,5 @@
+Run mbsync every single minute to synchronize my email messages.
+
+#+begin_src scheme
+  (job '(next-minute) "mbsync --all --quiet --verbose")
+#+end_src
diff --git a/mcron/.config/shepherd/init.d/mcron.scm.org b/mcron/.config/shepherd/init.d/mcron.scm.org
new file mode 100644
index 0000000..2598a25
--- /dev/null
+++ b/mcron/.config/shepherd/init.d/mcron.scm.org
@@ -0,0 +1,17 @@
+Mcron is a guile-based cron service. Define a service for it and start it up!
+
+#+begin_src scheme
+  (define mcron
+    (make <service>
+      #:provides '(mcron)
+      #:docstring "Run `mcron'"
+      #:start (make-forkexec-constructor
+               '("mcron")
+               #:log-file (string-append (getenv "HOME") "/.logs/mcron.log"))
+      #:stop (make-kill-destructor)
+      #:respawn? #t))
+
+  (register-services mcron)
+
+  (start mcron)
+#+end_src
diff --git a/shepherd/.config/shepherd/init.org b/shepherd/.config/shepherd/init.scm.org
index 05c9d6e..05c9d6e 100644
--- a/shepherd/.config/shepherd/init.org
+++ b/shepherd/.config/shepherd/init.scm.org