+** [[http://alloytools.org][Alloy]] (with [[https://github.com/dwwmmn/alloy-mode][alloy-mode]])
+
+#+begin_src emacs-lisp
+(use-package alloy-mode
+ :config (setq alloy-basic-offset 2))
+#+end_src
+
+** [[https://coq.inria.fr][Coq]] (with [[https://github.com/ProofGeneral/PG][Proof General]])
+
+#+begin_src emacs-lisp
+(use-package proof-site ; Proof General
+ :load-path "lib/proof-site/generic/")
+#+end_src
+
+** [[https://leanprover.github.io][Lean]] (with [[https://github.com/leanprover/lean-mode][lean-mode]])
+
+#+begin_src emacs-lisp
+(eval-when-compile (defvar lean-mode-map))
+(use-package lean-mode
+ :bind (:map lean-mode-map
+ ("S-SPC" . company-complete)))
+#+end_src
+
+** Haskell
+
+*** [[https://github.com/haskell/haskell-mode][haskell-mode]]
+
+#+begin_src emacs-lisp
+(use-package haskell-mode
+ :config
+ (setq haskell-indentation-layout-offset 4
+ haskell-indentation-left-offset 4
+ flycheck-checker 'haskell-hlint
+ flycheck-disabled-checkers '(haskell-stack-ghc haskell-ghc)))
+#+end_src
+
+*** [[https://github.com/jyp/dante][dante]]
+
+#+begin_src emacs-lisp
+(use-package dante
+ :after haskell-mode
+ :commands dante-mode
+ :hook (haskell-mode . dante-mode))
+#+end_src
+
+*** [[https://github.com/mpickering/hlint-refactor-mode][hlint-refactor]]
+
+Emacs bindings for [[https://github.com/ndmitchell/hlint][hlint]]'s refactor option. This requires the refact
+executable from [[https://github.com/mpickering/apply-refact][apply-refact]].
+
+#+begin_src emacs-lisp
+(use-package hlint-refactor
+ :bind (:map hlint-refactor-mode-map
+ ("C-c l b" . hlint-refactor-refactor-buffer)
+ ("C-c l r" . hlint-refactor-refactor-at-point))
+ :hook (haskell-mode . hlint-refactor-mode))
+#+end_src
+
+*** [[https://github.com/flycheck/flycheck-haskell][flycheck-haskell]]
+
+#+begin_src emacs-lisp
+(use-package flycheck-haskell)
+#+end_src
+
+*** [[https://github.com/ndmitchell/hlint/blob/20e116a043f2073c57b17b24ae6364b5e433ba7e/data/hs-lint.el][hs-lint.el]]
+:PROPERTIES:
+:header-args+: :tangle lisp/hs-lint.el :mkdirp yes
+:END:
+
+Currently using =flycheck-haskell= with the =haskell-hlint= checker
+instead.
+
+#+begin_src emacs-lisp :tangle no
+;;; hs-lint.el --- minor mode for HLint code checking
+
+;; Copyright 2009 (C) Alex Ott
+;;
+;; Author: Alex Ott <alexott@gmail.com>
+;; Keywords: haskell, lint, HLint
+;; Requirements:
+;; Status: distributed under terms of GPL2 or above
+
+;; Typical message from HLint looks like:
+;;
+;; /Users/ott/projects/lang-exp/haskell/test.hs:52:1: Eta reduce
+;; Found:
+;; count1 p l = length (filter p l)
+;; Why not:
+;; count1 p = length . filter p
+
+
+(require 'compile)
+
+(defgroup hs-lint nil
+ "Run HLint as inferior of Emacs, parse error messages."
+ :group 'tools
+ :group 'haskell)
+
+(defcustom hs-lint-command "hlint"
+ "The default hs-lint command for \\[hlint]."
+ :type 'string
+ :group 'hs-lint)
+
+(defcustom hs-lint-save-files t
+ "Save modified files when run HLint or no (ask user)"
+ :type 'boolean
+ :group 'hs-lint)
+
+(defcustom hs-lint-replace-with-suggestions nil
+ "Replace user's code with suggested replacements"
+ :type 'boolean
+ :group 'hs-lint)
+
+(defcustom hs-lint-replace-without-ask nil
+ "Replace user's code with suggested replacements automatically"
+ :type 'boolean
+ :group 'hs-lint)
+
+(defun hs-lint-process-setup ()
+ "Setup compilation variables and buffer for `hlint'."
+ (run-hooks 'hs-lint-setup-hook))
+
+;; regex for replace suggestions
+;;
+;; ^\(.*?\):\([0-9]+\):\([0-9]+\): .*
+;; Found:
+;; \s +\(.*\)
+;; Why not:
+;; \s +\(.*\)
+
+(defvar hs-lint-regex
+ "^\\(.*?\\):\\([0-9]+\\):\\([0-9]+\\): .*[\n\C-m]Found:[\n\C-m]\\s +\\(.*\\)[\n\C-m]Why not:[\n\C-m]\\s +\\(.*\\)[\n\C-m]"
+ "Regex for HLint messages")
+
+(defun make-short-string (str maxlen)
+ (if (< (length str) maxlen)
+ str
+ (concat (substring str 0 (- maxlen 3)) "...")))
+
+(defun hs-lint-replace-suggestions ()
+ "Perform actual replacement of suggestions"
+ (goto-char (point-min))
+ (while (re-search-forward hs-lint-regex nil t)
+ (let* ((fname (match-string 1))
+ (fline (string-to-number (match-string 2)))
+ (old-code (match-string 4))
+ (new-code (match-string 5))
+ (msg (concat "Replace '" (make-short-string old-code 30)
+ "' with '" (make-short-string new-code 30) "'"))
+ (bline 0)
+ (eline 0)
+ (spos 0)
+ (new-old-code ""))
+ (save-excursion
+ (switch-to-buffer (get-file-buffer fname))
+ (goto-char (point-min))
+ (forward-line (1- fline))
+ (beginning-of-line)
+ (setf bline (point))
+ (when (or hs-lint-replace-without-ask
+ (yes-or-no-p msg))
+ (end-of-line)
+ (setf eline (point))
+ (beginning-of-line)
+ (setf old-code (regexp-quote old-code))
+ (while (string-match "\\\\ " old-code spos)
+ (setf new-old-code (concat new-old-code
+ (substring old-code spos (match-beginning 0))
+ "\\ *"))
+ (setf spos (match-end 0)))
+ (setf new-old-code (concat new-old-code (substring old-code spos)))
+ (remove-text-properties bline eline '(composition nil))
+ (when (re-search-forward new-old-code eline t)
+ (replace-match new-code nil t)))))))
+
+(defun hs-lint-finish-hook (buf msg)
+ "Function, that is executed at the end of HLint execution"
+ (if hs-lint-replace-with-suggestions
+ (hs-lint-replace-suggestions)
+ (next-error 1 t)))
+
+(define-compilation-mode hs-lint-mode "HLint"
+ "Mode for check Haskell source code."
+ (set (make-local-variable 'compilation-process-setup-function)
+ 'hs-lint-process-setup)
+ (set (make-local-variable 'compilation-disable-input) t)
+ (set (make-local-variable 'compilation-scroll-output) nil)
+ (set (make-local-variable 'compilation-finish-functions)
+ (list 'hs-lint-finish-hook))
+ )
+
+(defun hs-lint ()
+ "Run HLint for current buffer with haskell source"
+ (interactive)
+ (save-some-buffers hs-lint-save-files)
+ (compilation-start (concat hs-lint-command " \"" buffer-file-name "\"")
+ 'hs-lint-mode))
+
+(provide 'hs-lint)
+;;; hs-lint.el ends here
+#+end_src
+
+#+begin_src emacs-lisp :tangle no
+(use-package hs-lint
+ :load-path "lisp/"
+ :bind (:map haskell-mode-map
+ ("C-c l l" . hs-lint)))
+#+end_src
+
+** Web dev
+
+*** SGML and HTML
+
+#+begin_src emacs-lisp
+(use-package sgml-mode
+ :config
+ (setq sgml-basic-offset 2))
+#+end_src
+
+*** CSS and SCSS
+
+#+begin_src emacs-lisp
+(use-package css-mode
+ :config
+ (setq css-indent-offset 2))
+#+end_src
+
+*** Web mode
+
+#+begin_src emacs-lisp
+(use-package web-mode
+ :mode "\\.html\\'"
+ :config
+ (setq-every! 2
+ web-mode-code-indent-offset
+ web-mode-css-indent-offset
+ web-mode-markup-indent-offset))
+#+end_src
+
+*** Emmet mode
+
+#+begin_src emacs-lisp
+(use-package emmet-mode
+ :bind* (("C-)" . emmet-next-edit-point)
+ ("C-(" . emmet-prev-edit-point))
+ :config
+ (unbind-key "C-j" emmet-mode-keymap)
+ (setq emmet-move-cursor-between-quotes t)
+ :hook (web-mode css-mode html-mode sgml-mode))
+#+end_src
+
+** Nix
+
+#+begin_src emacs-lisp
+(use-package nix-mode
+ :mode "\\.nix\\'")
+#+end_src
+
+* Emacs Enhancements
+
+** [[https://github.com/justbur/emacs-which-key][which-key]]
+
+#+begin_quote
+Emacs package that displays available keybindings in popup
+#+end_quote
+
+#+begin_src emacs-lisp
+(use-package which-key
+ :defer 1
+ :config (which-key-mode))
+#+end_src
+
+** [[https://github.com/seagle0128/doom-modeline][doom-modeline]]
+
+#+begin_src emacs-lisp
+(use-package doom-modeline
+ :demand t
+ :config (setq doom-modeline-height 32)
+ :hook (after-init . doom-modeline-init))
+#+end_src
+
+** [[https://github.com/maio/eink-emacs][eink-theme]]
+
+#+begin_src emacs-lisp
+(setq doom-modeline-bar-width 5)
+(load-theme 'eink t)
+#+end_src
+
+** [[https://github.com/bbatsov/crux][crux]]
+
+#+begin_src emacs-lisp
+(use-package crux
+ :bind (("C-c d" . crux-duplicate-current-line-or-region)
+ ("C-c M-d" . crux-duplicate-and-comment-current-line-or-region)
+ ("C-c b K" . crux-kill-other-buffers)
+ ("C-c f c" . crux-copy-file-preserve-attributes)
+ ("C-c f D" . crux-delete-file-and-buffer)
+ ("C-c f R" . crux-rename-file-and-buffer)
+ ("C-S-j" . crux-top-join-line)
+ ("C-c j" . crux-top-join-line)))
+#+end_src
+
+** [[https://github.com/alezost/mwim.el][mwim]]
+
+#+begin_src emacs-lisp
+(use-package mwim
+ :bind (("C-a" . mwim-beginning-of-code-or-line)
+ ("C-e" . mwim-end-of-code-or-line)
+ ("<home>" . mwim-beginning-of-line-or-code)
+ ("<end>" . mwim-end-of-line-or-code)))
+#+end_src
+
+** projectile
+
+#+begin_src emacs-lisp
+(use-package projectile
+ :defer 5
+ :bind-keymap ("C-c p" . projectile-command-map)
+ :config
+ (projectile-mode)
+
+ (defun my-projectile-invalidate-cache (&rest _args)
+ ;; ignore the args to `magit-checkout'
+ (projectile-invalidate-cache nil))
+
+ (eval-after-load 'magit-branch
+ '(progn
+ (advice-add 'magit-checkout
+ :after #'my-projectile-invalidate-cache)
+ (advice-add 'magit-branch-and-checkout
+ :after #'my-projectile-invalidate-cache))))
+#+end_src
+
+** [[https://github.com/Wilfred/helpful][helpful]]
+
+#+begin_src emacs-lisp
+(use-package helpful
+ :bind
+ (("C-h f" . helpful-callable)
+ ("C-h v" . helpful-variable)
+ ("C-h k" . helpful-key)
+ ("C-c C-d" . helpful-at-point)
+ ("C-h F" . helpful-function)
+ ("C-h C" . helpful-command)))
+#+end_src
+
+** [[https://github.com/kyagi/shell-pop-el][shell-pop]]
+
+#+begin_src emacs-lisp
+(use-package shell-pop
+ :custom
+ (shell-pop-universal-key "C-c e")
+ (shell-pop-shell-type '("eshell" "*eshell*" (lambda nil (eshell)))))
+#+end_src
+
+** [[https://github.com/EricCrosson/unkillable-scratch][unkillable-scratch]]
+
+Make =*scratch*= and =*Messages*= unkillable.
+
+#+begin_src emacs-lisp
+(use-package unkillable-scratch
+ :config
+ (unkillable-scratch 1)
+ :custom
+ (unkillable-buffers '("^\\*scratch\\*$" "^\\*Messages\\*$")))
+#+end_src
+
+** [[https://github.com/davep/boxquote.el][boxquote.el]]
+
+#+begin_example
+,----
+| make pretty boxed quotes like this
+`----
+#+end_example
+
+#+begin_src emacs-lisp
+(use-package boxquote
+ :bind
+ (:prefix-map amin--boxquote-prefix-map
+ :prefix "C-c q"
+ ("b" . boxquote-buffer)
+ ("B" . boxquote-insert-buffer)
+ ("d" . boxquote-defun)
+ ("F" . boxquote-insert-file)
+ ("hf" . boxquote-describe-function)
+ ("hk" . boxquote-describe-key)
+ ("hv" . boxquote-describe-variable)
+ ("hw" . boxquote-where-is)
+ ("k" . boxquote-kill)
+ ("p" . boxquote-paragraph)
+ ("q" . boxquote-boxquote)
+ ("r" . boxquote-region)
+ ("s" . boxquote-shell-command)
+ ("t" . boxquote-text)
+ ("T" . boxquote-title)
+ ("u" . boxquote-unbox)
+ ("U" . boxquote-unbox-region)
+ ("y" . boxquote-yank)
+ ("M-q" . boxquote-fill-paragraph)
+ ("M-w" . boxquote-kill-ring-save)))
+#+end_src
+
+Also see [[https://www.emacswiki.org/emacs/rebox2][rebox2]].
+
+** [[https://github.com/DarthFennec/highlight-indent-guides][highlight-indent-guides]]
+
+#+begin_src emacs-lisp
+(use-package highlight-indent-guides
+ :demand t
+ :hook ((prog-mode . highlight-indent-guides-mode)
+ (org-mode . highlight-indent-guides-mode))
+ :config
+ (setq highlight-indent-guides-character ?\|)
+ (setq highlight-indent-guides-auto-enabled nil)
+ (setq highlight-indent-guides-method 'character)
+ (setq highlight-indent-guides-responsive 'top)
+ (set-face-foreground 'highlight-indent-guides-character-face "gainsboro")
+ (set-face-foreground 'highlight-indent-guides-top-character-face "grey40")) ; grey13 is nice too
+#+end_src
+
+** pdf-tools
+
+#+begin_src emacs-lisp
+(use-package pdf-tools
+ :magic ("%PDF" . pdf-view-mode)
+ :config (pdf-tools-install)
+ :bind
+ (:map pdf-view-mode-map
+ ("C-s" . isearch-forward)
+ ("C-r" . isearch-backward)
+ ("j" . pdf-view-next-line-or-next-page)
+ ("k" . pdf-view-previous-line-or-previous-page)))
+#+end_src
+
+** anzu
+
+#+begin_src emacs-lisp
+(use-package anzu)
+#+end_src
+
+* Email
+
+#+begin_src emacs-lisp
+(defvar amin-maildir (expand-file-name "~/mail/"))
+(after! recentf
+ (add-to-list 'recentf-exclude amin-maildir))
+#+end_src
+
+** sendmail
+
+#+begin_src emacs-lisp
+(use-package sendmail
+ :config
+ (setq sendmail-program "/usr/bin/msmtp"
+ ;; message-sendmail-extra-arguments '("-v" "-d")
+ mail-specify-envelope-from t
+ mail-envelope-from 'header))
+#+end_src
+
+** message
+
+#+begin_src emacs-lisp
+(use-package message
+ :config
+ (setq message-kill-buffer-on-exit t
+ message-send-mail-function 'message-send-mail-with-sendmail
+ message-sendmail-envelope-from 'header
+ ;; message-directory "drafts"
+ message-user-fqdn "aminb.org")
+ (add-hook 'message-mode-hook
+ (lambda () (setq fill-column 65
+ message-fill-column 65)))
+ (add-hook 'message-mode-hook
+ #'flyspell-mode)
+ ;; (add-hook 'message-setup-hook
+ ;; #'mml-secure-message-sign-pgpmime)
+ :custom-face
+ (message-header-subject ((t (:foreground "navy blue" :weight semi-bold))))
+ (message-header-to ((t (:foreground "MidnightBlue" :weight semi-bold)))))
+
+(after! mml-sec
+ (setq mml-secure-openpgp-encrypt-to-self t
+ mml-secure-openpgp-sign-with-sender t))
+#+end_src
+
+** [[https://notmuchmail.org][notmuch]]
+
+See [[notmuch:id:87muuqsvci.fsf@fencepost.gnu.org][bug follow-up]].