Let’s configure Emacs using Org mode, they said. It’ll be fun, they said.

Pave the way

Correct exec-path

(let ((win-downloads "c:/Users/aduckworth/Downloads"))
  (dolist (path (list
		 ;; Linux
		 (expand-file-name "bin"
				   user-emacs-directory)
		 (expand-file-name "~/bin")
		 (expand-file-name "~/.local/bin")
		 (expand-file-name "~/Scripts")
		 ;; Windows
		 (expand-file-name "emacs/bin"
				   win-downloads)
		 (expand-file-name "m/usr/bin"
				   win-downloads)
		 (expand-file-name "m/mingw64/bin"
				   win-downloads)
		 (expand-file-name "PortableGit/bin"
				   win-downloads)
		 (expand-file-name "PortableGit/usr/bin"
				   win-downloads)))
    (when (file-exists-p path)
      (add-to-list 'exec-path path))))

Package management

Straight.el

Since for whatever reason, Straight can't bootstrap itself on Windows – I've wrapped it in a function here and added the direct git command when it errors.

(defun acdw/bootstrap-straight ()
  (defvar bootstrap-version)
		       (let ((bootstrap-file
			      (expand-file-name
			       "straight/repos/straight.el/bootstrap.el"
			       user-emacs-directory))
			     (bootstrap-version 5))
			 (unless (file-exists-p bootstrap-file)
			   (with-current-buffer
			       (url-retrieve-synchronously
				(concat "https://raw.githubusercontent.com/"
					"raxod502/straight.el/develop/install.el")
				'silent 'inhibit-cookies)
			     (goto-char (point-max))
			     (eval-print-last-sexp)))
			 (load bootstrap-file nil 'nomessage)))

(unless (ignore-errors (acdw/bootstrap-straight))
  (message "Straight.el didn't bootstrap correctly.  Cloning directly...")
  (call-process "git" nil (get-buffer-create "*bootstrap-straight-messages*") nil
		"clone"
		"https://github.com/raxod502/straight.el"
		(expand-file-name "straight/repos/straight.el"
				  user-emacs-directory))
  (acdw/bootstrap-straight))

Use-package

(setq straight-use-package-by-default t)
(setq use-package-hook-name-suffix nil)
(straight-use-package 'use-package)

Extra use-package keywords

1. :custom-update

   (straight-use-package
    '(use-package-custom-update
      :host github
      :repo "a13/use-package-custom-update"))
   
   (require 'use-package-custom-update)
   

Customize variables

Put customizations in a separate file

(setq custom-file
      (expand-file-name "custom.el" user-emacs-directory))

A macro for ease of customization

(defmacro cuss (var val &optional docstring)
  "Basically `:custom' from `use-package', broken out."
  `(funcall (or (get ',var 'custom-set) #'set-default)
	    ',var ,val))

Keep a tidy ~/.emacs

(straight-use-package 'no-littering)

(cuss backup-directory-alist `((".*" . ,(no-littering-expand-var-file-name "backup/")))
      "Where to store backup files.")

(cuss auto-save-file-name-transforms
      `((".*" ,(no-littering-expand-var-file-name "autosaves/") t))
      "Where to store auto-save files.")

(cuss save-place-file (no-littering-expand-var-file-name "places")
      "Where to store place files.")

(cuss undo-fu-session-directory (no-littering-expand-var-file-name "undos/")
      "Where to store undo information.")

(cuss elpher-certificate-directory
      (no-littering-expand-var-file-name "elpher-certificates/")
      "Where to store elpher client certificates.")

;; Make all directories defined above
(dolist (dir '("backup"
	       "autosaves"
	       "undos"
	       "elpher-certificates"))
  (make-directory (no-littering-expand-var-file-name dir) 'parents))

About me

(setq user-full-name "Case Duckworth"
      user-mail-address "acdw@acdw.net")

Look and Feel

Simplify the UI

Tool bars and menu bars

(cuss default-frame-alist
      '((tool-bar-lines . 0)
	(menu-bar-lines . 0)))

(menu-bar-mode -1)
(tool-bar-mode -1)

Scroll bars

(add-to-list 'default-frame-alist '(vertical-scroll-bars . nil))
(scroll-bar-mode -1)

(add-to-list 'default-frame-alist '(horizontal-scroll-bars . nil))
(horizontal-scroll-bar-mode -1)

Dialog boxen

(cuss use-dialog-box nil)

Shorten confirmations

(fset 'yes-or-no-p #'y-or-n-p)

Remove the bell

(cuss visible-bell (not (string= (system-name) "larry")))

(defun acdw/ring-bell-function ()
  "Custom bell-ringing function."
  (let ((orig-face (face-foreground 'mode-line)))
    (set-face-foreground 'modeline "#F2804F")
    (run-with-idle-timer
     0.1 nil
     (lambda (fg)
       (set-face-foreground 'mode-line fg))
     orig-face)))

(cuss ring-bell-function #'acdw/ring-bell-function)

Tell Ediff to setup windows better

(declare-function ediff-setup-windows-plain "ediff-wind.el")
(cuss ediff-window-setup-function #'ediff-setup-windows-plain)

Tweak the remaining UI

Fringes

(add-to-list 'default-frame-alist '(left-fringe-width . 2))
(add-to-list 'default-frame-alist '(right-fringe-width . 2))

Minibuffer

1. Setup the minibuffer frame

   (cuss minibuffer-frame-alist
         '((width . 80)
   	(height . 2)
   	(vertical-scrollbars . nil)))
   
   (set-window-scroll-bars (minibuffer-window) nil nil)
   

2. Keep the cursor from going into the prompt

   (cuss minibuffer-prompt-properties
         '(read-only t cursor-intangible t face minibuffer-prompt))
   

Tabs

1. Show the tabs as current buffer, plus window count

   (cuss tab-bar-tab-name-function #'tab-bar-tab-name-current-with-count)
   

2. Only show the tab bar when there's more than one tab

   (cuss tab-bar-show 1
         "Show the tab bar only when there's more than 1 tab.")
   

Cursor

(cuss cursor-type 'bar
      "Show a vertical bar for the cursor.")
(cuss cursor-in-non-selected-windows 'hollow
      "In inactive windows, make the cursor an empty box.")
(blink-cursor-mode 0)

Buffer names

(require 'uniquify)
(cuss uniquify-buffer-name-style 'forward)

Buffer boundaries

(cuss indicate-buffer-boundaries
      '((up . right)
	(down . right)
	(t . nil)))

(cuss indicate-empty-lines t)

Windows

Winner mode

(when (fboundp 'winner-mode)
  (winner-mode +1))

Windmove

(cuss windmove-create-window t
      "Create windows in a direction if they don't exist.")
(cuss windomove-wrap-around t
      "Wrap window movements around frame edges.")

(windmove-default-keybindings)

Pop some buffers up in the same window

from link0ff.

(push `(,(rx bos
	     "*"
	     (or "Help" "Apropos" "Colors" "Buffer List" "Command History"
		 "Dictionary" "Locate" "Messages" "Proced" "eww" "snd"
		 (and "gud-" (+ (any "a-z0-9")))
		 "compilation" "grep" "erlang" "haskell"
		 ;; Handle both "*shell*" and e.g. "*emacs-shell*"
		 ;; generated by `project-shell':
		 (and (? (* nonl) "-") "shell")
		 "Shell Command Output"
		 (and "SQL: " (+ (any "A-za-z")))
		 "Diff" "vc-dir" "vc-log" "vc-search-log")
	     "*"
	     ;; Uniquifed buffer name with optional suffix in angle brackets
	     (? (and "<" (+ (not (any ">"))) ">"))
	     eos)
	display-buffer-same-window
	(inhibit-same-window . nil))
      display-buffer-alist)

(defun display-buffer-from-help-p (_buffer-name _action)
  (unless current-prefix-arg
    (with-current-buffer (window-buffer)
      (eq major-mode 'help-mode))))

(push '(display-buffer-from-help-p display-buffer-same-window)
      display-buffer-alist)

Startup

(cuss inhibit-startup-screen t "Don't show Emacs' startup buffer.")
(cuss initial-buffer-choice t "Start at *scratch*.")
(cuss initial-scratch-message "" "Empty *scratch*.")

Theme

(straight-use-package '(modus-themes
			:host gitlab
			:repo "protesilaos/modus-themes"
			:branch "main"))

(cuss modus-themes-slanted-constructs t)
(cuss modus-themes-bold-constructs t)
(cuss modus-themes-fringes nil)
(cuss modus-themes-mode-line '3d)
(cuss modus-themes-syntax 'yellow-comments)
(cuss modus-themes-intense-hl-line nil)
(cuss modus-themes-paren-match 'intense-bold)
(cuss modus-themes-links nil)
(cuss modus-themes-no-mixed-fonts nil)
(cuss modus-themes-prompts nil)
(cuss modus-themes-completions nil)
(cuss modus-themes-diffs nil)
(cuss modus-themes-org-blocks 'grayscale)
(cuss modus-themes-headings
      '((1 . line)
	(t . t)))
(cuss modus-themes-variable-pitch-headings t)
(cuss modus-themes-scale-headings t)
(cuss modus-themes-scale-1 1.1)
(cuss modus-themes-scale-2 1.15)
(cuss modus-themes-scale-3 1.21)
(cuss modus-themes-scale-4 1.27)
(cuss modus-themes-scale-5 1.33)

;; :custom-face
(custom-set-faces `(font-lock-comment-face
		    ((t (:inherit (custom-comment italic variable-pitch))))))

(load-theme 'modus-operandi t)

Change theme based on time of day

(cuss calendar-latitude 30.4515)
(cuss calendar-longitude -91.1871)

(straight-use-package 'circadian)

(cuss circadian-themes '((:sunrise . modus-operandi)
			 (:sunset . modus-vivendi)))

(circadian-setup)

Modeline

(straight-use-package 'smart-mode-line)
(cuss sml/no-confirm-load-theme t)
(sml/setup)

1. Rich minority

   Since this comes with smart mode line, I’m just going to use it, instead of diminish or another package. I do have to write this helper function, though, to add things to the whitelist.

   (defun rm/whitelist-add (regexp)
     "Add a REGEXP to the whitelist for `rich-minority'."
     (if (listp 'rm--whitelist-regexps)
         (add-to-list 'rm--whitelist-regexps regexp)
       (setq rm--whitelist-regexps `(,regexp)))
     (setq rm-whitelist
   	(mapconcat 'identity rm--whitelist-regexps "\\|")))
   
   (straight-use-package 'rich-minority)
   
   (rm/whitelist-add "^$")
   

Fonts

1. Define fonts

   (defun set-face-from-alternatives (face fonts)
     (catch :return
       (dolist (font fonts)
         (when (find-font (font-spec :family (car font)))
   	(apply #'set-face-attribute `(,face nil
   					    :family ,(car font)
   					    ,@(cdr font)))
   	(throw :return font)))))
   
   (defun acdw/setup-fonts ()
     "Setup fonts.  This has to happen after the frame is setup for
   the first time, so it should be added to `window-setup-hook'.  It
   removes itself from that hook."
     (interactive)
     (when (display-graphic-p)
       (set-face-from-alternatives 'default
   				'(("Libertinus Mono"
   				   :height 110)
   				  ("Linux Libertine Mono O"
   				   :height 110)
   				  ("Go Mono"
   				   :height 100)
   				  ("Consolas"
   				   :height 100)))
   
       (set-face-from-alternatives 'fixed-pitch
   				'(("Libertinus Mono"
   				   :height 110)
   				  ("Linux Libertine Mono O"
   				   :height 110)
   				  ("Go Mono"
   				   :height 100)
   				  ("Consolas"
   				   :height 100)))
   
       (set-face-from-alternatives 'variable-pitch
   				'(("Libertinus Serif"
   				   :height 120)
   				  ("Linux Libertine O"
   				   :height 120)
   				  ("Georgia"
   				   :height 110)))
   
       (remove-function after-focus-change-function #'acdw/setup-fonts)))
   
   (add-function :before after-focus-change-function #'acdw/setup-fonts)
   

2. Variable-pitch in text modes

   (add-hook 'text-mode-hook #'variable-pitch-mode)
   

3. Line spacing

   (cuss line-spacing 0.1)
   

4. Unicode fonts

   (straight-use-package 'unicode-fonts)
   (with-eval-after-load 'unicode-fonts
     (unicode-fonts-setup))
   

Interactivity

Async

(straight-use-package 'async)
(autoload 'dired-async-mode "dired-async.el" nil t)
(dired-async-mode +1)

(async-bytecomp-package-mode +1)

Completing-read

Shadow file names

(cuss file-name-shadow-properties '(invisible t))

(file-name-shadow-mode +1)

Selectrum

(straight-use-package 'selectrum)
(require 'selectrum)
(selectrum-mode +1)

Prescient

(straight-use-package 'prescient)
(require 'prescient)

(prescient-persist-mode +1)

(straight-use-package 'selectrum-prescient)

(with-eval-after-load 'prescient
  (with-eval-after-load 'selectrum
    (selectrum-prescient-mode +1)))

(straight-use-package 'company-prescient)

(with-eval-after-load 'prescient
  (with-eval-after-load 'company
    (company-prescient-mode +1)))

Consult

(use-package consult
  :after (selectrum)
  :straight (consult
	     :host github
	     :repo "minad/consult")
  :bind
  (("C-x b" . consult-buffer)
   ("C-x 4 b" . consult-buffer-other-window)
   ("C-x 5 b" . consult-buffer-other-frame)
   ("M-g o" . consult-outline)
   ("M-g l" . consult-line)
   ("M-y" . consult-yank-pop)
   ("<help> a" . consult-apropos))
  :init
  (fset 'multi-occur #'consult-multi-occur))

(use-package consult-selectrum
  :straight (consult-selectrum
	     :host github
	     :repo "minad/consult"))

Marginalia

(straight-use-package '(marginalia
			:host github
			:repo "minad/marginalia"
			:branch "main"))

(cuss marginalia-annotators
      (if (eq system-type 'windows-nt)
	  '(marginalia-annotators-light
	    marginalia-annotators-heavy)
	'(marginalia-annotators-heavy
	  marginalia-annotators-light)))

(marginalia-mode +1)

Ignore case

(cuss completion-ignore-case t)
(cuss read-buffer-completion-ignore-case t)
(cuss read-file-name-completion-ignore-case t)

Search

(use-package ctrlf
  :custom
  (ctrlf-show-match-count-at-eol nil)
  :bind
  ("C-s" . ctrlf-forward-regexp)
  ("C-r" . ctrlf-backward-regexp)
  ("C-M-s" . ctrlf-forward-literal)
  ("C-M-r" . ctrlf-backward-literal)
  :config
  (ctrlf-mode +1))

Mouse

Fix scrolling in margins

This is not quite correct yet. For example, scrolling in the margins with a trackpad isn’t picked up (a trackpad sends different mouse events).

(dolist (vec '([left-margin wheel-down]
	       [right-margin wheel-down]
	       [left-margin wheel-up]
	       [right-margin wheel-up]))
  (bind-key vec #'mwheel-scroll))

Keyboard

Use ESC as a cancel key

From link0ff. I thought they made a great point that ESC isn’t necessary to copy the META key on window-systems, which is where I use Emacs, anyway.

(when window-system
  (define-key global-map [escape] 'keyboard-escape-quit)
  (define-key isearch-mode-map  [escape] 'isearch-cancel))

Make C-z more useful as a prefix key

Also from link0ff. See the above for a link.

(defvar acdw/map
  (let ((map (make-sparse-keymap))
	(c-z (global-key-binding "\C-z")))
    (global-unset-key "\C-z")
    (define-key global-map "\C-z" map)
    (define-key map "\C-z" c-z)
    map))
(run-hooks 'acdw/map-defined-hook)

Which-key

(straight-use-package 'which-key)

(which-key-mode +1)

Bindings

1. Switch to another window

   (bind-key "M-o" #'other-window)
   

Persistence

Save history

(require 'savehist)

(cuss savehist-additional-variables
      '(kill-ring
	search-ring
	regexp-search-ring))

(cuss savehist-save-minibuffer-history t)

(cuss history-length t)

(cuss history-delete-duplicates t)

(savehist-mode +1)

Save places in files

(require 'saveplace)

(cuss save-place-forget-unreadable-files
      (not (eq system-type 'windows-nt)))

(save-place-mode 1)

Recent files

(require 'recentf)

(cuss recentf-max-menu-items 100)
(cuss recentf-max-saved-items 100)

(with-eval-after-load 'no-littering
  (add-to-list 'recentf-exclude no-littering-var-directory)
  (add-to-list 'recentf-exclude no-littering-etc-directory))

(recentf-mode 1)

Easily navigate recent files

(defun recentf-find-file ()
  "Find a recent file using `completing-read'."
  (interactive)
  (let ((file (completing-read "Recent file: " recentf-list nil t)))
    (when file
      (find-file file))))

(global-set-key (kbd "C-x C-r") #'recentf-find-file)

Undo

(use-package undo-fu
  :bind
  ("C-/" . undo-fu-only-undo)
  ("C-?" . undo-fu-only-redo))

(straight-use-package 'undo-fu-session)

(cuss undo-fu-session-incompatible-files
      '("/COMMIT_EDITMSG\\'"
	"/git-rebase-todo\\'"))

(global-undo-fu-session-mode +1)

Editing

Operate visually on lines

(global-visual-line-mode +1)

Require a final newline

(cuss require-final-newline t)

Killing & Yanking

Replace selection when typing

(delete-selection-mode +1)

Save existing clipboard text into kill ring before replacing it

(cuss save-interprogram-paste-before-kill t)

Sync the system clipboard and the kill ring

(cuss yank-pop-change-selection t)

So long mode

(when (fboundp 'global-so-long-mode)
  (global-so-long-mode))

Multiple cursors

(use-package multiple-cursors
  :bind
  ("C->" . mc/mark-next-like-this)
  ("C-<" . mc/mark-previous-like-this)
  ("C-c C-<" . mc/mark-all-like-this))

Expand region

(use-package expand-region
  :bind
  (("C-=" . er/expand-region)
   ("C-+" . er/contract-region)))

Highlight modified regions

(straight-use-package 'goggles)

(cuss goggles-pulse nil)

(goggles-mode +1)

Files

Encoding

UTF-8

(set-language-environment "UTF-8")
(set-terminal-coding-system 'utf-8)
(cuss locale-coding-system 'utf-8)
(set-default-coding-systems 'utf-8)
(set-selection-coding-system 'utf-8)
(prefer-coding-system 'utf-8)

Convert all files to UNIX-style line endings

from Emacs Wiki.

(defun ewiki/no-junk-please-were-unixish ()
  "Convert line endings to UNIX, dammit."
  (let ((coding-str (symbol-name buffer-file-coding-system)))
    (when (string-match "-\\(?:dos\\|mac\\)$" coding-str)
      (set-buffer-file-coding-system 'unix))))

I add it to the find-file-hook and before-save-hook because I don't want to ever work with anything other than UNIX line endings ever again. I just don't care. Even Microsoft Notepad can handle UNIX line endings, so I don't want to hear it.

(add-hook 'find-file-hook #'ewiki/no-junk-please-were-unixish)
(add-hook 'before-save-hook #'ewiki/no-junk-please-were-unixish)

Backups

(cuss backup-by-copying 1)
(cuss delete-old-versions -1)
(cuss version-control t)
(cuss vc-make-backup-files t)

Auto-saves

(auto-save-visited-mode 1)

Revert files

(cuss auto-revert-verbose nil)
(global-auto-revert-mode +1)

Add a timestamp to files

(add-hook 'before-save-hook #'time-stamp)

Programming

Which function are we in?

(which-function-mode +1)

Parentheses

Show parentheses

(cuss show-paren-delay 0 "Show matching parens immediately.")
(cuss show-paren-style 'mixed
      "Show parenthesis, or whole expression, depending on visibility.")
(cuss show-paren-when-point-in-periphery t
      "Show paren when point is near-to paren.")
(cuss show-paren-when-point-inside-paren t
      "Show surrounding parens.")

(add-hook 'prog-mode-hook #'show-paren-mode)

Smart parentheses

(straight-use-package 'smartparens)
(require 'smartparens-config)

(show-smartparens-global-mode +1)
(add-to-list 'sp-ignore-modes-list 'org-mode)

(add-hook 'prog-mode-hook #'smartparens-strict-mode)

Indenting

(straight-use-package 'aggressive-indent)

(global-aggressive-indent-mode +1)

Completion

(use-package company
  :custom
  (company-idle-delay 0.1)
  (company-minimum-prefix-length 3)

  :init
  (defun acdw/company-complete-common-or-cycle+1 ()
    (interactive)
    (company-complete-common-or-cycle +1))

  (defun acdw/company-complete-common-or-cycle-1 ()
    (interactive)
    (company-complete-common-or-cycle -1))

  :bind
  (:map company-active-map
	("C-n" . acdw/company-complete-common-or-cycle+1)
	("C-p" . acdw/company-complete-common-or-cycle-1))

  :hook
  (prog-mode-hook . company-mode))

(use-package company-prescient
  :hook
  (company-mode-hook . company-prescient-mode))

;; this comes with company-quickhelp, so....

(use-package company-posframe
  :after (company)
  :config
  (company-posframe-mode +1))

Languages

Lua

(use-package lua-mode
  :mode "\\.lua\\'"
  :interpreter "lua")

Fennel

(use-package fennel-mode
  :mode "\\.fnl\\'")

Emacs lisp

(cuss eval-expression-print-length nil
      "Don't truncate printed expressions by length.")
(cuss eval-expression-print-level nil
      "Don't truncate printed expressions by level.")

Writing

Visual Fill Column

(straight-use-package 'visual-fill-column)

(cuss split-window-preferred-function
      'visual-fill-column-split-window-sensibly)
(cuss visual-fill-column-center-text t)
(cuss fill-column 80)

(advice-add 'text-scale-adjust
	    :after #'visual-fill-column-adjust)

(add-hook 'text-mode-hook #'visual-fill-column-mode)

Type nice-looking quote-type marks

(straight-use-package 'typo)

(add-hook 'text-mode-hook #'typo-mode)

Insert kaomoji

(use-package insert-kaomoji
  :bind
  ("C-x 8 k" . insert-kaomoji))

Applications

Magit

(use-package magit
  :bind
  ("C-z g" . magit-status))

Org mode

I’ve put org mode under Applications, as opposed to Writing, because it’s more generally-applicable than that.

(straight-use-package 'org)

(with-eval-after-load 'org
  (require 'org-tempo)
  (require 'ox-md)
  (bind-key "M-n" #'outline-next-visible-heading 'org-mode-map)
  (bind-key "M-p" #'outline-previous-visible-heading 'org-mode-map))

(cuss org-hide-emphasis-markers t)
(cuss org-fontify-done-headline t)
(cuss org-fontify-whole-heading-line t)
(cuss org-fontify-quote-and-verse-blocks t)
(cuss org-pretty-entities t)
(cuss org-num-mode +1)
(cuss org-src-tab-acts-natively t)
(cuss org-src-fontify-natively t)
(cuss org-src-window-setup 'current-window)
(cuss org-confirm-babel-evaluate nil)
(cuss org-directory "~/Org")

Org Agenda

(cuss org-agenda-files (no-littering-expand-etc-file-name "agenda-files"))

(if (and (stringp org-agenda-files)
	 (not (file-exists-p org-agenda-files)))
    (with-temp-buffer (write-file org-agenda-files)))

Make bullets look like bullets

(font-lock-add-keywords
 'org-mode
 '(("^ *\\([-+]\\) "
    (0 (prog1 ()
	 (compose-region (match-beginning 1)
			 (match-end 1)
			 "•"))))))

A better return in Org mode

(require 'org-inlinetask)

(defun scimax/org-return (&optional ignore)
  "Add new list item, heading or table row with RET.
A double return on an empty element deletes it.
Use a prefix arg to get regular RET."
  (interactive "P")
  (if ignore
      (org-return)
    (cond

     ((eq 'line-break (car (org-element-context)))
      (org-return t))

     ;; Open links like usual, unless point is at the end of a line.
     ;; and if at beginning of line, just press enter.
     ((or (and (eq 'link (car (org-element-context))) (not (eolp)))
	  (bolp))
      (org-return))

     ;; It doesn't make sense to add headings in inline tasks. Thanks Anders
     ;; Johansson!
     ((org-inlinetask-in-task-p)
      (org-return))

     ;; checkboxes too
     ((org-at-item-checkbox-p)
      (org-insert-todo-heading nil))

     ;; lists end with two blank lines, so we need to make sure we are also not
     ;; at the beginning of a line to avoid a loop where a new entry gets
     ;; created with only one blank line.
     ((org-in-item-p)
      (if (save-excursion (beginning-of-line) (org-element-property :contents-begin (org-element-context)))
	  (org-insert-heading)
	(beginning-of-line)
	(delete-region (line-beginning-position) (line-end-position))
	(org-return)))

     ;; org-heading
     ((org-at-heading-p)
      (if (not (string= "" (org-element-property :title (org-element-context))))
	  (progn (org-end-of-meta-data)
		 (org-insert-heading-respect-content)
		 (outline-show-entry))
	(beginning-of-line)
	(setf (buffer-substring
	       (line-beginning-position) (line-end-position)) "")))

     ;; tables
     ((org-at-table-p)
      (if (-any?
	   (lambda (x) (not (string= "" x)))
	   (nth
	    (- (org-table-current-dline) 1)
	    (org-table-to-lisp)))
	  (org-return)
	;; empty row
	(beginning-of-line)
	(setf (buffer-substring
	       (line-beginning-position) (line-end-position)) "")
	(org-return)))

     ;; fall-through case
     (t
      (org-return)))))


(define-key org-mode-map (kbd "RET")
  'scimax/org-return)

Insert blank lines

from unpackaged.el.

;;;###autoload
(defun unpackaged/org-fix-blank-lines (&optional prefix)
  "Ensure that blank lines exist between headings and between headings and their contents.
With prefix, operate on whole buffer. Ensures that blank lines
exist after each headings's drawers."
  (interactive "P")
  (org-map-entries (lambda ()
		     (org-with-wide-buffer
		      ;; `org-map-entries' narrows the buffer, which prevents us
		      ;; from seeing newlines before the current heading, so we
		      ;; do this part widened.
		      (while (not (looking-back "\n\n" nil))
			;; Insert blank lines before heading.
			(insert "\n")))
		     (let ((end (org-entry-end-position)))
		       ;; Insert blank lines before entry content
		       (forward-line)
		       (while (and (org-at-planning-p)
				   (< (point) (point-max)))
			 ;; Skip planning lines
			 (forward-line))
		       (while (re-search-forward org-drawer-regexp end t)
			 ;; Skip drawers. You might think that `org-at-drawer-p'
			 ;; would suffice, but for some reason it doesn't work
			 ;; correctly when operating on hidden text.  This
			 ;; works, taken from `org-agenda-get-some-entry-text'.
			 (re-search-forward "^[ \t]*:END:.*\n?" end t)
			 (goto-char (match-end 0)))
		       (unless (or (= (point) (point-max))
				   (org-at-heading-p)
				   (looking-at-p "\n"))
			 (insert "\n"))))
		   t (if prefix
			 nil
		       'tree)))

1. Add a before-save-hook

   (defun cribbed/org-mode-fix-blank-lines ()
     (when (eq major-mode 'org-mode)
       (let ((current-prefix-arg 4)) ; Emulate C-u
         (call-interactively 'unpackaged/org-fix-blank-lines))))
   
   (add-hook 'before-save-hook #'cribbed/org-mode-fix-blank-lines)
   

Elpher

(use-package elpher
  :straight (elpher
	     :repo "git://thelambdalab.xyz/elpher.git"
	     :branch "patch_multiple_buffers")

  :custom
  (elpher-ipv4-always t)

  :custom-face
  (elpher-gemini-heading1
   ((t (:inherit (modus-theme-heading-1)))))
  (elpher-gemini-heading2
   ((t (:inherit (modus-theme-heading-2)))))
  (elpher-gemini-heading3
   ((t (:inherit (modus-theme-heading-3)))))

  :config
  (defun elpher:eww-browse-url (original url &optional new-window)
    "Handle gemini/gopher links with eww."
    (cond ((string-match-p "\\`\\(gemini\\|gopher\\)://" url)
	   (require 'elpher)
	   (elpher-go url))
	  (t (funcall original url new-window))))
  (advice-add 'eww-browse-url :around 'elpher:eww-browse-url)

  :bind (:map elpher-mode-map
	      ("n" . elpher-next-link)
	      ("p" . elpher-prev-link)
	      ("o" . elpher-follow-current-link)
	      ("G" . elpher-go-current))

  :hook
  (elpher-mode-hook . visual-fill-column-mode))

Gemini mode

(use-package gemini-mode
  :straight (gemini-mode
	     :repo "https://git.carcosa.net/jmcbray/gemini.el.git")

  :mode "\\.\\(gemini|gmi\\)\\'"

  :custom-face
  (gemini-heading-face-1
   ((t (:inherit (elpher-gemini-heading1)))))
  (gemini-heading-face2
   ((t (:inherit (elpher-gemini-heading2)))))
  (gemini-heading-face3
   ((t (:inherit (elpher-gemini-heading3)))))

  :init
  (defun acdw/setup-gemini-mode ()
    (visual-fill-column-mode 1)
    (variable-pitch-mode -1))

  :hook
  (gemini-mode-hook . acdw/setup-gemini-mode))

Gemini write

(use-package gemini-write
  :straight (gemini-write
	     :repo "https://alexschroeder.ch/cgit/gemini-write"))

Ox-gemini

(use-package ox-gemini
  :straight (ox-gemini
	     :repo "https://git.sr.ht/~abrahms/ox-gemini"
	     :branch "main"))

Pastebin

(straight-use-package '0x0)

(cuss 0x0-default-service 'ttm)

RSS

(use-package newsticker
  :custom
  (newsticker-url-list
   ;; LABEL URL [START-TIME] [INERVAL] [WGET-ARGUMENTS]
   '(("wsinatra" "http://lambdacreate.com/static/feed.rss")
     ("elioat" "https://eli.li/feed.rss")
     ("ACDW" "https://www.acdw.net/atom.xml")
     ("june" "https://text.causal.agency/feed.atom")
     ("kylie - notes" "https://www.somas.is/notes.atom")
     ("kylie - rhizome" "https://www.somas.is/rhizome.atom")
     ("brennan" "https://p1k3.com/all.xml")
     ("Planet Emacs" "https://planet.emacslife.com/atom.xml") 
     ("nullprogram, Chris Wellons" "https://nullprogram.com/feed/")
     ("Malleable Systems" "https://malleable.systems/blog/index.xml"))
   )
  :hook
  (newsticker-treeview-item-mode-hook . visual-fill-column-mode))

Web browsing

Open youtube links in mpv

from karthinks.

(require 'browse-url)

(when (executable-find "mpv")
  (defun browse-url-mpv (url &optional single)
    (start-process "mpv" nil (if single "mpv" "umpv")
		   (shell-quote-wildcard-pattern url)))

  (defun browse-url-at-point-mpv (&optional single)
    "Open a link in mpv."
    (interactive "P")
    (let ((browse-url-browser-function
	   (if single
	       (lambda
		 (url &optional _new-window)
		 (browse-url-mpv url t))
	     #'browse-url-mpv)))
      (browse-url-at-point)))

  (cuss browse-url-browser-function
	'(("https?:\\/\\/www\\.youtu\\.*be." . browse-url-mpv)
	  ("." . browse-url-generic))))

Reading e-books

(use-package nov
  :mode ("\\.epub\\'" . nov-mode)
  :init
  (defun acdw/setup-nov-mode ()
    (visual-line-mode +1)
    (visual-fill-column-mode +1)
    (variable-pitch-mode +1)
    (setq cursor-type nil))
  :config
  (cuss nov-text-width t)
  :hook
  (nov-mode-hook . acdw/setup-nov-mode))

Eshell

(when (executable-find "bash")
  (straight-use-package 'bash-completion))

(when (executable-find "fish")
  (straight-use-package 'fish-completion)
  (require 'fish-completion)
  (cuss fish-completion-fallback-on-bash-p (executable-find "bash"))
  (global-fish-completion-mode +1)

  (straight-use-package 'fish-mode)
  (add-to-list 'auto-mode-alist '("\\.fish\\'" . fish-mode)))

Appendices

Emacs' files

init.el

;; init.el -*- lexical-binding: t -*-

1. Speed up init

   (setq gc-cons-threshold most-positive-fixnum)
   (defvar old-file-name-handler file-name-handler-alist)
   (setq file-name-handler-alist nil)
   

2. Load config

   inspired by Protesilaos Stavrou.

   (let* ((conf (expand-file-name "config"
   			       user-emacs-directory))
          (conf-el (concat conf ".el"))
          (conf-org (concat conf ".org")))
     (unless (and (file-newer-than-file-p conf-el conf-org)
   	       (load conf 'no-error))
       (require 'org)
       (org-babel-load-file conf-org)))
   

3. Reset for normal operation

   (setq gc-cons-threshold 16777216 ; 16mb
         gc-cons-percentage 0.1
         file-name-handler-alist old-file-name-handler)
   

early-init.el

;; early-init.el -*- lexical-binding: t; no-byte-compile: t; -*-

(setq load-prefer-newer t)
(setq frame-inhibit-implied-resize t)

Ease tangling and loading of Emacs' init

(defun refresh-emacs (&optional disable-load)
  "Tangle `config.org', then byte-compile the resulting files.
Then, load the byte-compilations unless passed with a prefix argument."
  (interactive "P")
  (let ((config (expand-file-name "config.org" user-emacs-directory)))
    (save-mark-and-excursion
      (with-current-buffer (find-file config)
	(let ((prog-mode-hook nil))
	  ;; generate the readme
	  (when (file-newer-than-file-p config (expand-file-name
						"README.md"
						user-emacs-directory))
	    (require 'ox-md)
	    (org-md-export-to-markdown))
	  ;; tangle config.org
	  (when (file-newer-than-file-p config (expand-file-name
						"config.el"
						user-emacs-directory))
	    (require 'org)
	    (let ((inits (org-babel-tangle)))
	      ;; byte-compile resulting files
	      (dolist (f inits)
		(when (string-match "\\.el\\'" f)
		  (byte-compile-file f (not disable-load)))))))))))

Add a hook to tangle when quitting

(defun acdw/refresh-emacs-no-load ()
  (refresh-emacs 'disable-load))

(add-hook 'kill-emacs-hook #'acdw/refresh-emacs-no-load)

Ancillary scripts

emacsdc

Here’s a wrapper script that’ll start emacs –daemon if there isn’t one, and then launch emacsclient with the arguments. I’d recommend installing with either ln -s bin/emacsdc $HOME/.local/bin/, or adding $HOME/.local/bin to your $PATH.

if ! emacsclient -nc "$@" 2>/dev/null; then
    emacs --daemon
    emacsclient -nc "$@"
fi

License

Copyright © 2020 Case Duckworth acdw@acdw.net

This work is free. You can redistribute it and/or modify it under the terms of the Do What the Fuck You Want To Public License, Version 2, as published by Sam Hocevar. See the LICENSE file, tangled from the following source block, for details.

DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE

Version 2, December 2004

Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>

Everyone is permitted to copy and distribute verbatim or modified copies of
this license document, and changing it is allowed as long as the name is changed.

DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE

TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

   0. You just DO WHAT THE FUCK YOU WANT TO.

Note on the license

It's highly likely that the WTFPL is completely incompatible with the GPL, for what should be fairly obvious reasons. To that, I say:

SUE ME, RMS!