#+TITLE: Agryphus' Emacs Config
#+AUTHOR: agryphus

# Unfold all org headings
#+STARTUP: showeverything

# Roughly in order of least to most likely to break / necessary to fix a broken config.
* TABLE OF CONTENTS :toc_3:
- [[#general-keybinds][General Keybinds]]
  - [[#quick-find-files][Quick Find Files]]
  - [[#elisp-evaluation][Elisp Evaluation]]
  - [[#unsetting-bindings-that-step-on-mine][Unsetting Bindings That Step on Mine]]
- [[#better-defaults][Better Defaults]]
  - [[#disable-really-quit-emacs-prompt][Disable "Really Quit Emacs" Prompt]]
  - [[#relative-line-numbers][Relative Line Numbers]]
  - [[#scrolloff][Scrolloff]]
  - [[#scratch-buffer-mode][Scratch Buffer Mode]]
- [[#evil][Evil]]
  - [[#changing-keybinds][Changing Keybinds]]
    - [[#changing-backspace-behavior][Changing backspace behavior]]
    - [[#leave-insertvisual-modes-with-c-c][Leave insert/visual modes with C-C]]
    - [[#remove-jk-escape-sequence][Remove "jk" escape sequence]]
    - [[#clearing-highlight-with-c-l][Clearing highlight with C-L]]
    - [[#swap-gkj-and-kj][Swap g[k/j] and k/j]]
  - [[#resize-font-in-insert-mode][Resize Font in Insert Mode]]
- [[#visual-tweaks][Visual Tweaks]]
  - [[#scale-line-number-size-with-buffer-text][Scale Line Number Size with Buffer Text]]
  - [[#block-cursor-not-showing-in-terminal-mode][Block Cursor Not Showing in Terminal Mode]]
  - [[#doom-dashboard-spacing][Doom Dashboard Spacing]]
  - [[#posframe][Posframe]]
    - [[#vertico-posframe][Vertico Posframe]]
    - [[#company-posframe][Company Posframe]]
- [[#fonts][Fonts]]
  - [[#default][Default]]
  - [[#mixed-pitch-mode][Mixed Pitch Mode]]
- [[#coloring][Coloring]]
  - [[#themes][Themes]]
  - [[#transparency][Transparency]]
- [[#languages][Languages]]
  - [[#lspcompletion-config][LSP/Completion Config]]
    - [[#company-mode][Company-mode]]
    - [[#make-lsp-ui-sideline-suggestions-the-same-size-as-buffer-text][Make lsp-ui sideline suggestions the same size as buffer text]]
    - [[#lsp-mode-in-org-src-blocks][LSP mode in org src blocks]]
  - [[#org][Org]]
    - [[#variable-height-headers][Variable Height Headers]]
    - [[#org-modern][Org Modern]]
    - [[#special-symbolscharacters][Special symbols/characters]]
    - [[#agenda][Agenda]]
    - [[#svg-tags][SVG Tags]]
  - [[#markdown][Markdown]]
    - [[#conceal-markup][Conceal Markup]]
    - [[#variable-sized-headers][Variable Sized Headers]]
    - [[#list-bullets][List Bullets]]
    - [[#mixed-pitch][Mixed Pitch]]
  - [[#typst][Typst]]
  - [[#shell][Shell]]
  - [[#nix][Nix]]
- [[#miscellaneous][Miscellaneous]]
  - [[#anki][Anki]]
  - [[#face-explorer][Face Explorer]]

* General Keybinds
** Quick Find Files
#+begin_src emacs-lisp
  (map! :leader
      (:prefix ("=" . "open file")
      :desc "Edit doom config.org"  "c" #'(lambda () (interactive) (find-file "~/.config/doom/config.org"))
      :desc "Edit doom init.el"     "i" #'(lambda () (interactive) (find-file "~/.config/doom/init.el"))))
  (map! "C-/" #'comment-line)
#+end_src

** Elisp Evaluation
#+begin_src emacs-lisp
  (map! :leader
        (:prefix ("e". "evaluate")
         :desc "Evaluate elisp in buffer"  "b" #'eval-buffer
         :desc "Evaluate defun"            "d" #'eval-defun
         :desc "Evaluate elisp expression" "e" #'eval-expression
         :desc "Evaluate last sexpression" "l" #'eval-last-sexp
         :desc "Evaluate elisp in region"  "r" #'eval-region))
#+end_src

** Unsetting Bindings That Step on Mine
#+begin_src emacs-lisp
  (after! ccls! (unbind-key "M-a" c-mode-base-map))

  ;; The C package adds a keybind to (ccls-navigate "D"), which not
  ;; only steps on my binding, but is not even a provided function.
  (map! :after ccls
        :map (c-mode-map c++-mode-map)
        :n "C-h" nil
        :n "C-j" nil
        :n "C-k" nil
        :n "C-l" nil)
#+end_src

* Better Defaults
** Disable "Really Quit Emacs" Prompt
#+begin_src emacs-lisp
  (setq confirm-kill-emacs nil)
#+end_src

** Relative Line Numbers
#+begin_src emacs-lisp
  (setq display-line-numbers-type 'relative)
#+end_src

** Scrolloff
#+begin_src emacs-lisp
  (setq ag/scroll-margin 8) ;; Custom var
  (setq scroll-margin ag/scroll-margin)

  ;; Exceptions for modes that need 0 scroll margin
  (add-hook 'eat-mode-hook (lambda () (setq-local scroll-margin 0)))
  (add-hook 'eat-exit-hook (lambda () (setq-local scroll-margin ag/scroll-margin)))
  (add-hook '+doom-dashboard-mode-hook (lambda () (setq-local scroll-margin 0)))
#+end_src

** Scratch Buffer Mode
Scratch buffer is, by default, in interactive lisp mode.  Default to just plaintext.
#+begin_src emacs-lisp
  (setq initial-major-mode 'text-mode)
#+end_src

* Evil
** Changing Keybinds
*** Changing backspace behavior
#+begin_src emacs-lisp
  (define-key evil-insert-state-map (kbd "<backspace>") 'backward-delete-char-untabify)
#+end_src
*** Leave insert/visual modes with C-C
#+begin_src emacs-lisp
  (define-key evil-insert-state-map (kbd "C-c") 'evil-normal-state)
  (define-key evil-visual-state-map (kbd "C-c") 'evil-normal-state)
#+end_src

*** Remove "jk" escape sequence
By default, evil exits insert mode when "jk" is pressed in sequence.  I find this to be confusing behavior.
#+begin_src emacs-lisp
  (setq evil-escape-key-sequence nil)
#+end_src

*** Clearing highlight with C-L
Mimics the "redraw" signal sent to terminals for vim.
#+begin_src emacs-lisp
  (define-key evil-normal-state-map (kbd "C-l") 'evil-ex-nohighlight)
#+end_src

*** Swap g[k/j] and k/j
#+begin_src emacs-lisp
  (define-key evil-motion-state-map (kbd "gj") 'evil-next-line)
  (define-key evil-motion-state-map (kbd "gk") 'evil-previous-line)
  (define-key evil-motion-state-map (kbd "j")  'evil-next-visual-line)
  (define-key evil-motion-state-map (kbd "k")  'evil-previous-visual-line)
#+end_src

** Resize Font in Insert Mode
These are the same keybinds that are able to work outside of insert mode.
#+begin_src emacs-lisp
  (define-key evil-insert-state-map (kbd "C-M-=") 'doom/increase-font-size)
  (define-key evil-insert-state-map (kbd "C-M--") 'doom/decrease-font-size)
  (define-key evil-insert-state-map (kbd "C-=") 'text-scale-increase)
  (define-key evil-insert-state-map (kbd "C--") 'text-scale-decrease)
#+end_src

* Visual Tweaks
** Scale Line Number Size with Buffer Text
#+begin_src emacs-lisp
  (add-hook 'text-scale-mode-hook (lambda() (face-remap--remap-face 'line-number)))
  (add-hook 'text-scale-mode-hook (lambda() (face-remap--remap-face 'line-number-current-line)))
#+end_src
** Block Cursor Not Showing in Terminal Mode
#+begin_src emacs-lisp :tangle packages.el
  (package! evil-terminal-cursor-changer)
#+end_src

#+begin_src emacs-lisp
  (use-package! evil-terminal-cursor-changer
    :hook (tty-setup . evil-terminal-cursor-changer-activate))
#+end_src

** Doom Dashboard Spacing
I felt that the spacing between the line items in the graphical doom dashboard was too large.  There did not seem to be any variable to set this, so I overrode the entire function and manually decreased the spacing
#+begin_src emacs-lisp
(defun doom-dashboard-widget-shortmenu ()
  (insert "\n")
  (dolist (section +doom-dashboard-menu-sections)
    (cl-destructuring-bind (label &key icon action when face key) section
      (when (and (fboundp action)
                 (or (null when)
                     (eval when t)))
        (insert
         (+doom-dashboard--center
          (- +doom-dashboard--width 1)
          (let ((icon (if (stringp icon) icon (eval icon t))))
            (format (format "%s%%s%%-10s" (if icon "%3s\t" "%3s"))
                    (or icon "")
                    (with-temp-buffer
                      (insert-text-button
                       label
                       'action
                       `(lambda (_)
                          (call-interactively (or (command-remapping #',action)
                                                  #',action)))
                       'face (or face 'doom-dashboard-menu-title)
                       'follow-link t
                       'help-echo
                       (format "%s (%s)" label
                               (propertize (symbol-name action) 'face 'doom-dashboard-menu-desc)))
                      (format "%-37s" (buffer-string)))
                    ;; Lookup command keys dynamically
                    (propertize
                     (or key
                         (when-let*
                             ((keymaps
                               (delq
                                nil (list (when (bound-and-true-p evil-local-mode)
                                            (evil-get-auxiliary-keymap +doom-dashboard-mode-map 'normal))
                                          +doom-dashboard-mode-map)))
                              (key
                               (or (when keymaps
                                     (where-is-internal action keymaps t))
                                   (where-is-internal action nil t))))
                           (with-temp-buffer
                             (save-excursion (insert (key-description key)))
                             (while (re-search-forward "<\\([^>]+\\)>" nil t)
                               (let ((str (match-string 1)))
                                 (replace-match
                                  (upcase (if (< (length str) 3)
                                              str
                                            (substring str 0 3))))))
                             (buffer-string)))
                         "")
                     'face 'doom-dashboard-menu-desc))))
         ;; (if (display-graphic-p)
         ;;     "\n\n"
         ;;   "\n"))))))
         "\n"))))) ;; Overwrote above lines so remove the extra newline in graphical mode from the doom dashboard

  (remove-hook '+doom-dashboard-functions #'doom-dashboard-widget-footer) ;; No github at bottom
#+end_src

** Posframe
*** Vertico Posframe
#+begin_src emacs-lisp :tangle packages.el
  (package! vertico-posframe)
#+end_src

#+begin_src emacs-lisp
  (vertico-posframe-mode 1)
  (setq vertico-multiform-commands
        '((consult-line
           posframe
           (vertico-posframe-poshandler . posframe-poshandler-frame-top-center)
           (vertico-posframe-border-width . 10)
           ;; NOTE: This is useful when emacs is used in both in X and
           ;; terminal, for posframe do not work well in terminal, so
           ;; vertico-buffer-mode will be used as fallback at the
           ;; moment.
           (vertico-posframe-fallback-mode . vertico-buffer-mode))
          (t posframe)))
  (vertico-multiform-mode 1)
#+end_src

*** Company Posframe
Company mode, by default, has its suggestions snap to the grid.  When using anything other than monospaced font, this creately very glitchy looking behavior.  Popping it out in a posframe makes the suggestions exist in their own graphical window.
#+begin_src emacs-lisp :tangle packages.el
  (package! company-posframe)
#+end_src

#+begin_src emacs-lisp
  (company-posframe-mode 1)
#+end_src

* Fonts
** Default
#+begin_src emacs-lisp
  (add-to-list 'default-frame-alist '(font . "Symbols Nerd Font Mono 15"))
  (add-to-list 'default-frame-alist '(font . "FiraCode 15"))
    (set-face-font 'variable-pitch "Inter Display 15")
  (set-fontset-font "fontset-default" 'han "Source Han Sans")
#+end_src

** Mixed Pitch Mode
#+begin_src emacs-lisp :tangle packages.el
  (package! mixed-pitch)
#+end_src

* Coloring
There are four ways to start emacs with the combinations of GUI/TUI and standalone/daemon.
Unfortunately, each of these four methods requires a slightly different way to set window transparency.
** Themes
#+begin_src emacs-lisp :tangle packages.el
  (package! gruber-darker-theme)
  (package! no-clown-fiesta-theme)
#+end_src

#+begin_src emacs-lisp
  (add-to-list 'custom-theme-load-path "~/.config/doom/themes/")
  (load-theme 'some-clown-fiesta t)
#+end_src

** Transparency
#+begin_src emacs-lisp
  ;; GUI transparency
  (set-frame-parameter nil 'alpha-background 80)
  (add-to-list 'default-frame-alist '(alpha-background . 80))

  ;; Variable sized org headers
  (custom-set-faces!
    '(default :background "black"))

  (defun ag/terminal-faces (frame)
    (set-face-attribute 'hl-line   frame :background "unspecified-bg")
    (set-face-attribute 'org-block frame :background "unspecified-bg")
    (set-face-attribute 'default   frame :background "unspecified-bg"))

  (defun window-transparency ()
    (if (display-graphic-p (selected-frame))
      (progn ;; $ emacs
             ;; Transparency for graphical session
             )
      (progn ;; $ emacs -nw
             ;; Transparency for terminal session
             (ag/terminal-faces (selected-frame)))))
  (unless (daemonp)
    (add-hook 'window-setup-hook 'window-transparency))

  (defun ag/make-client-frame (frame)
    ;; Called at the creation of each emacsclient frame
    (if (display-graphic-p frame)
      (progn ;; $ emacsclient -c
             ;; Transparency for specific graphical frame
             )
      (progn ;; $ emacsclient -nw
             ;; Transparency for specific terminal frame
             (ag/terminal-faces frame))))
  (add-hook 'after-make-frame-functions 'ag/make-client-frame)
#+end_src

Keybinds in order to increase/decrease the transparency of emacs windows in GUI mode.  I try to keep these
bindings in sync with the terminal that I use, as to make the experiences of GUI and TUI emacs relatively similar.
#+begin_src emacs-lisp
  (defun ag/adjust-alpha-background (delta)
    "Increase or decrease the alpha-background by DELTA, not exceeding 1 or going below 0."
    (interactive "p")
    ;; let* macro instead of let, since new-alpha relies on alpha
    (let* ((current-alpha (or (frame-parameter (selected-frame) 'alpha-background) 0))
           (new-alpha (+ current-alpha delta)))
      (when (and (<= new-alpha 100) (>= new-alpha 0))
        (set-frame-parameter (selected-frame) 'alpha-background new-alpha))))
  (global-set-key (kbd "M-a") (lambda () (interactive) (ag/adjust-alpha-background 5)))
  (global-set-key (kbd "M-s") (lambda () (interactive) (ag/adjust-alpha-background -5)))
#+end_src

* Languages
** LSP/Completion Config
*** Company-mode
#+begin_src emacs-lisp
  (setq ag/company-idle-delay 0.0) ;; Give completion suggestions immediately
  (setq company-minimum-prefix-length 1)
  (setq company-idle-delay ag/company-idle-delay)

  (set-company-backend!
    '(text-mode
      markdown-mode
      gfm-mode)
    '(:seperate
      company-files
      company-yasnippet
      company-ispell))

  ;; "lsp-mode overrides my config and prepends company-capf to company-backends, which results in shadowing
  ;; the other backends. To avoid this issue we can remove the lsp added entry using lsp-after-open-hook"
  ;;   - https://github.com/doomemacs/doomemacs/issues/4477#issuecomment-762882261
  (add-hook! lsp-after-open
    (setq-local company-backends '(:seperate
                                   company-files
                                   company-capf
                                   company-yasnippet
                                   company-ispell)))
  (setq +lsp-company-backends '())
#+end_src

*** Make lsp-ui sideline suggestions the same size as buffer text
#+begin_src emacs-lisp
  (use-package lsp-ui :commands lsp-ui-mode
    :config (progn
            ;;
            ;; 2022-03-28 - fix sideline height computation
            ;;
            (defun lsp-ui-sideline--compute-height nil
              "Return a fixed size for text in sideline."
              (let ((fontHeight (face-attribute 'lsp-ui-sideline-global :height)))
                (if (null text-scale-mode-remapping)
                    '(height
                      (if (floatp fontHeight) fontHeight
                        (/ (face-attribute 'lsp-ui-sideline-global :height) 100.0)
                        )
                      ;; Readjust height when text-scale-mode is used
                      (list 'height
                            (/ 1 (or (plist-get (cdr text-scale-mode-remapping) :height)
                                     1)))))))

            ;;
            ;; 2022-03-28 - fix sideline alignment
            ;;
            (defun lsp-ui-sideline--align (&rest lengths)
              "Align sideline string by LENGTHS from the right of the window."
              (list (* (window-font-width nil 'lsp-ui-sideline-global)
                       (+ (apply '+ lengths) (if (display-graphic-p) 1 2)))))
            ))
#+end_src

*** LSP mode in org src blocks
From: https://tecosaur.github.io/emacs-config/config.html
#+begin_src emacs-lisp
  (cl-defmacro lsp-org-babel-enable (lang)
    "Support LANG in org source code block."
    (setq centaur-lsp 'lsp-mode)
    (cl-check-type lang stringp)
    (let* ((edit-pre (intern (format "org-babel-edit-prep:%s" lang)))
           (intern-pre (intern (format "lsp--%s" (symbol-name edit-pre)))))
      `(progn
         (defun ,intern-pre (info)
           (let ((file-name (->> info caddr (alist-get :file))))
             (unless file-name
               (setq file-name (make-temp-file "babel-lsp-")))
             (setq buffer-file-name file-name)
             (lsp-deferred)))
         (put ',intern-pre 'function-documentation
              (format "Enable lsp-mode in the buffer of org source block (%s)."
                      (upcase ,lang)))
         (if (fboundp ',edit-pre)
             (advice-add ',edit-pre :after ',intern-pre)
           (progn
             (defun ,edit-pre (info)
               (,intern-pre info))
             (put ',edit-pre 'function-documentation
                  (format "Prepare local buffer environment for org source block (%s)."
                          (upcase ,lang))))))))
  (defvar org-babel-lang-list
    '("go" "python" "ipython" "bash" "sh"))
  (dolist (lang org-babel-lang-list)
    (eval `(lsp-org-babel-enable ,lang)))
#+end_src

** Org
#+begin_src emacs-lisp
  (add-hook 'org-mode-hook 'mixed-pitch-mode)
#+end_src

#+begin_src emacs-lisp
  (setq org-src-fontify-natively t)
#+end_src

*** Variable Height Headers
#+begin_src emacs-lisp
  (custom-set-faces!
    '(org-document-title :height 1.5)
    '(org-document-info  :height 1.3)
    '(org-level-1 :height 1.5)
    '(org-level-2 :height 1.4)
    '(org-level-3 :height 1.3)
    '(org-level-4 :height 1.2)
    '(org-level-5 :height 1.1)
    '(org-level-6 :height 1.0)
    '(org-level-7 :height 1.0)
    '(org-level-8 :height 1.0))
#+end_src
*** Org Modern
#+begin_src emacs-lisp :tangle packages.el
  (package! org-modern)
#+end_src

*** Special symbols/characters
#+begin_src emacs-lisp
  (after! org
    (setq
          org-superstar-headline-bullets-list '("⁖" "◉" "•" "◦" "•" "◦" "•" "◦" "•" "◦")
          org-superstar-itembullet-alist '((?+ . ?➤) (?- . ?✦)))) ; changes +/- symbols in item lists

  (defun ag/prettify-me ()
    (setq prettify-symbols-alist
      '(("TODO"         . "")
        ("WAIT"         . "")
        ("NOPE"         . "")
        ("DONE"         . "")
        ("[ ]"          . "")
        ("[X]"          . "")
        ("[-]"          . "")
        ("#+begin_src"  . "")
        ("#+BEGIN_SRC"  . "")
        ("#+end_src"    . "")
        ("#+END_SRC"    . "")
        (":properties:" . "")
        (":PROPERTIES:" . "")
        ("#+property:"  . "")
        ("#+PROPERTY:"  . "")
        (":end:"        . "―")
        (":END:"        . "―")
        ("#+options:"   . "")
        ("#+OPTIONS:"   . "")
        ("#+startup:"   . "")
        ("#+STARTUP:"   . "")
        ("#+title: "    . "")
        ("#+TITLE: "    . "")
        ("#+TOC:"       . "󰠶")
        ("#+toc:"       . "󰠶")
        ("#+results:"   . "")
        ("#+RESULTS:"   . "")
        ("#+name:"      . "")
        ("#+NAME:"      . "")
        ("#+roam_tags:" . "")
        ("#+ROAM_TAGS:" . "")
        ("#+filetags:"  . "")
        ("#+FILETAGS:"  . "")
        ("#+html_head:" . "")
        ("#+HTML_HEAD:" . "")
        ("#+subtitle:"  . "")
        ("#+SUBTITLE:"  . "")
        ("#+author:"    . "󰙏")
        ("#+AUTHOR:"    . "󰙏")
        (":effort:"     . "")
        (":EFFORT:"     . "")
        ("scheduled:"   . "")
        ("SCHEDULED:"   . "")
        ("deadline:"    . "")
        ("DEADLINE:"    . ""))))
  (add-hook 'org-mode-hook 'ag/prettify-me)
  ;; Can probably remove duplicates with
  ;; (mapcan (lambda (x) (list x (cons (upcase (car x)) (cdr x))))
#+end_src

*** Agenda
#+begin_src emacs-lisp
  (setq org-agenda-files
    '("~/.local/share/org-agenda"))

  (map! :leader :desc "Open org calendar" "o c" #'cfw:open-org-calendar)
  (add-hook 'calendar-after-frame-setup-hook 'cfw:refresh-calendar-buffer)
#+end_src

*** SVG Tags
#+begin_src emacs-lisp :tangle packages.el
  (package! svg-tag-mode)
#+end_src

#+begin_src emacs-lisp
  (use-package! svg-tag-mode)
  (setq svg-tag-tags
    '((":TODO:" . ((lambda (tag) (svg-tag-make "TODO"))))
      ("[X]" . ((lambda (tag) (svg-tag-make "X"))))))
#+end_src

** Markdown
*** Conceal Markup
#+begin_src emacs-lisp
  (add-hook 'markdown-mode-hook '(lambda () (markdown-toggle-markup-hiding)))
#+end_src

*** Variable Sized Headers
#+begin_src emacs-lisp
  (custom-set-faces!
    '(markdown-header-face-1 :height 1.5)
    '(markdown-header-face-2 :height 1.4)
    '(markdown-header-face-3 :height 1.3)
    '(markdown-header-face-4 :height 1.2)
    '(markdown-header-face-5 :height 1.1)
    '(markdown-header-face-6 :height 1.0)
    '(markdown-header-face-7 :height 1.0)
    '(markdown-header-face-8 :height 1.0))
#+end_src

*** List Bullets
#+begin_src emacs-lisp
  (setq markdown-list-item-bullets '("•" "◦"))
#+end_src

*** Mixed Pitch
#+begin_src emacs-lisp
  (add-hook 'markdown-mode-hook '(lambda () (mixed-pitch-mode)))
#+end_src

** Typst
Download the `typst-ts-mode` package, which isn't yet in Melpa.
#+begin_src emacs-lisp :tangle packages.el
(package! typst-mode)
;; (package! typst-ts-mode :recipe (:type git
;;                                  :host sourcehut
;;                                  :repo "meow_king/typst-ts-mode"))
#+end_src

Configure typst-ts-mode.
#+begin_src emacs-lisp
  (use-package! typst-mode)
  ;; (use-package! typst-ts-mode)
    ;; :custom
    ;; (typst-ts-mode-watch-options "--open")
    ;; (typst-ts-mode-enable-raw-blocks-highlight t)
    ;; (typst-ts-mode-highlight-raw-blocks-at-startup t))

  ;; (setq treesit-load-name-override-list
  ;;       '((typst "libtree-sitter-typst" "tree_sitter_typst")))

  ;; (setq treesit-language-source-alist
  ;;       '((typst "https://github.com/uben0/tree-sitter-typst")))
#+end_src

** Shell
#+begin_src emacs-lisp
  (set-company-backend!
    '(sh-mode)
    '(:seperate
      company-files
      company-shell
      company-yasnippet
      company-ispell))
#+end_src

** Nix
#+begin_src emacs-lisp
  (add-hook! lsp-nix-nil-after-open
    (progn
      ;; There's a silly goofy little function called doom--setq-company-idle-delay-for-nix-mode-h that, for some reason,
      ;; has a hook that sets company-idle-delay to nil, which effectively removes auto completion in nix-mode.  This was
      ;; very confusing to me and took me a bit to figure out why company-mode was buggy in nix-mode.
      (setq-local company-idle-delay ag/company-idle-delay)

      (setq-local company-backends nil)
      (setq-local company-backends '(:separate
                                     company-files
                                     company-nixos-options
                                     company-capf
                                     company-yasnippet
                                     company-ispell))))
#+end_src

* Miscellaneous
** Anki
#+begin_src emacs-lisp :tangle packages.el
  (package! anki-connect)
  (package! anki-editor)
#+end_src

** Face Explorer
#+begin_src emacs-lisp :tangle packages.el
  (package! face-explorer)
#+end_src