My Spacemacs User Config

(defun ngm-visual-line-motion ()
  "So j and k move up and down more like you'd expect in visual line mode"
  (interactive)
  (define-key evil-motion-state-map "j" 'evil-next-visual-line)
  (define-key evil-motion-state-map "k" 'evil-previous-visual-line))

(defun ngm-journal-mode ()
  "Set up journalling mode the way that I like it"
  (interactive)
  (olivetti-mode)
  (variable-pitch-mode 1)
  (face-remap-add-relative 'variable-pitch '(:family "Roboto Slab" :height 140))
  (ngm-visual-line-motion)
  (setq company-backends '(company-capf)) ; for org-roam completion
  )

(doom-themes-treemacs-config)
(doom-themes-org-config)

(require 'solaire-mode)
;; Enable solaire-mode anywhere it can be enabled
(solaire-global-mode +1)
;; To enable solaire-mode unconditionally for certain modes:
(add-hook 'ediff-prepare-buffer-hook #'solaire-mode)

;; ...if you use auto-revert-mode, this prevents solaire-mode from turning
;; itself off every time Emacs reverts the file
(add-hook 'after-revert-hook #'turn-on-solaire-mode)

;; highlight the minibuffer when it is activated:
(add-hook 'minibuffer-setup-hook #'solaire-mode-in-minibuffer)

;; if the bright and dark background colors are the wrong way around, use this
;; to switch the backgrounds of the `default` and `solaire-default-face` faces.
;; This should be used *after* you load the active theme!
;;
;; NOTE: This is necessary for themes in the doom-themes package!
(solaire-mode-swap-bg)

;; centaur-tabs configuration
;; https://github.com/ema2159/centaur-tabs
                                      ;(require 'centaur-tabs)
                                      ;(centaur-tabs-mode t)
                                      ;(global-set-key (kbd "C-<prior>")  'centaur-tabs-backward)
                                      ;(global-set-key (kbd "C-<next>") 'centaur-tabs-forward)
                                      ;(centaur-tabs-mode)
                                      ;(centaur-tabs-headline-match)
                                      ;(setq centaur-tabs-set-modified-marker t
                                      ;      centaur-tabs-modified-marker " ● "
                                      ;      centaur-tabs-cycle-scope 'tabs
                                      ;      centaur-tabs-height 35
                                      ;      centaur-tabs-set-icons t
                                      ;      centaur-tabs-close-button " × ")
                                      ;(dolist (centaur-face '(centaur-tabs-selected
                                      ;                        centaur-tabs-selected-modified
                                      ;                        centaur-tabs-unselected
                                      ;                        centaur-tabs-unselected-modified))
                                      ;  (set-face-attribute centaur-face nil :family "Noto Sans Mono" :height 100))

    (defun open-local-file-projectile (directory)
      "Helm action function, open projectile file within DIRECTORY
  specify by the keyword projectile-default-file define in
  `dir-locals-file'"
      (let ((default-file (f-join directory (nth 1
                                                  (car (-tree-map (lambda (node)
                                                                    (when (eq (car node) 'projectile-default-file)
                                                                      (format "%s" (cdr node))))
                                                                  (dir-locals-get-class-variables (dir-locals-read-from-dir directory))))))))
        (if (f-exists? default-file)
            (find-file default-file)
          (message "The file %s doesn't exist in the select project" default-file)
          )
        )
      )

(with-eval-after-load "helm-projectile"
  (helm-add-action-to-source "Open default file"
                              'open-local-file-projectile
                              helm-source-projectile-projects)
  )

    ;; (add-to-list 'helm-source-projectile-projects-actions '("Open default file" . open-local-file-projectile) t)


 ;; https://github.com/syl20bnr/spacemacs/issues/13100
 ;(setq completion-styles '(helm-flex))

;; mu4e
(setq mu4e-maildir "~/Maildir"
      mu4e-attachment-dir "~/downloads"
      mu4e-sent-folder "/Sent"
      mu4e-drafts-folder "/Drafts"
      mu4e-trash-folder "/Trash"
      mu4e-refile-folder "/Archive")

(setq user-mail-address "neil@doubleloop.net"
      user-full-name  "Neil Mather")

;; Get mail
(setq mu4e-get-mail-command "mbsync protonmail"
      mu4e-change-filenames-when-moving t   ; needed for mbsync
      mu4e-update-interval 120)             ; update every 2 minutes

(defun htmlize-and-send ()
  "When in an org-mu4e-compose-org-mode message, htmlize and send it."
  (interactive)
  (when (member 'org~mu4e-mime-switch-headers-or-body post-command-hook)
    (org-mime-htmlize)
    (message-send-and-exit)))

(add-hook 'org-ctrl-c-ctrl-c-hook 'htmlize-and-send t)

;; composing mail
                                      ;(setq mu4e-compose-format-flowed nil)
                                      ;(add-hook 'mu4e-compose-mode-hook (lambda () (turn-off-auto-fill) (use-hard-newlines -1)))
;; enable format=flowed
;; - mu4e sets up visual-line-mode and also fill (M-q) to do the right thing
;; - each paragraph is a single long line; at sending, emacs will add the
;;   special line continuation characters.
;; - also see visual-line-fringe-indicators setting below
(setq mu4e-compose-format-flowed t)
;; because it looks like email clients are basically ignoring format=flowed,
;; let's complicate their lives too. send format=flowed with looong lines. :)
;; https://www.ietf.org/rfc/rfc2822.txt
(setq fill-flowed-encode-column 998)
;; in mu4e with format=flowed, this gives me feedback where the soft-wraps are
(setq visual-line-fringe-indicators '(left-curly-arrow right-curly-arrow))

;; Send mail
(setq message-send-mail-function 'smtpmail-send-it
      smtpmail-auth-credentials "~/.authinfo" ;; Here I assume you encrypted the credentials
      smtpmail-smtp-server "127.0.0.1"
      smtpmail-smtp-service 1025)

;; look'n'feel
(setq mu4e-html2text-command 'mu4e-shr2text)
(setq shr-color-visible-luminance-min 60)
(setq shr-color-visible-distance-min 5)
(setq shr-use-colors nil)
(advice-add #'shr-colorize-region :around (defun shr-no-colourise-region (&rest ignore)))

(setq erc-hide-list '("JOIN" "PART" "QUIT"))

;; tidal
;;(add-to-list 'load-path "/home/neil/.emacs.d/private/tidal")
;;(require 'tidal)