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+;;; ~/.exwm -*-  mode: emacs-lisp; lexical-binding: t; -*-
+
+(require 'exwm-systemtray)
+
+;;; Functions
+
+(defun exwm-spawn (command)
+  (interactive (list (read-shell-command "$ ")))
+  (start-process-shell-command command nil command))
+
+(defun ^exwm-spawn (command)
+  (lambda () (interactive) (exwm-spawn command)))
+
+(defun exwm-autostart (command)
+  (start-process-shell-command
+   (format "<autostart> %s" command) " *autostart*" command))
+
+;; Wifi info
+(defun dBm->perc (dBm)
+  (truncate (+ (- (/ (* dBm dBm) 105.0))
+               (/ dBm 21.0)
+               100)))
+
+(defun %wifi-info ()
+  (let (ssid dBm signal)
+    (with-temp-buffer
+      (call-process "iw" nil t nil "dev" "wlan0" "link")
+      (goto-char (point-min))
+      (setq ssid (progn (search-forward "SSID: " nil t)
+                        (buffer-substring (point)
+                                          (pos-eol))))
+      (setq dBm (progn (search-forward "signal: " nil t)
+                       (string-to-number
+                        (buffer-substring (point)
+                                          (progn (forward-word)
+                                                 (point))))))
+      (setq signal (dBm->perc dBm))
+      (list ssid signal dBm))))
+
+(defun wifi-info ()
+  (interactive)
+  (apply #'message "Connected to `%s' at %s%% (%s dBm)"
+         (%wifi-info)))
+
+(defvar display-wifi-info-timer nil)
+(defvar display-wifi-info-string "")
+
+(defun display-wifi-info-update ()
+  (setq display-wifi-info-string
+        (let ((info (%wifi-info)))
+          (format " [🛜%s%%]" (cadr info))))
+  (force-mode-line-update 'all))
+
+(define-minor-mode display-wifi-info-mode
+  "Toggle display of wifi connection status in mode line."
+  :global t
+  (cond
+   (display-wifi-info-mode
+    (or (memq 'display-wifi-info-string global-mode-string)
+        (setq global-mode-string
+              (append global-mode-string '(display-wifi-info-string))))
+    (setq display-wifi-info-timer
+          (run-with-timer 0 30 #'display-wifi-info-update)))
+   (t (and (timerp display-wifi-info-timer)
+           (cancel-timer display-wifi-info-timer))
+      (setq display-wifi-info-timer nil)
+      (setq display-wifi-info-string nil))))
+
+;;; Options
+
+(setopt exwm-workspace-number 4)
+
+;; Tab bar
+(tab-bar-mode)
+(setopt tab-bar-show t)
+(setopt tab-bar-format
+        '(tab-bar-format-tabs
+          tab-bar-format-align-right
+          tab-bar-format-global))
+(setopt tab-bar-close-button-show nil)
+
+;; System information
+(setopt display-time-default-load-average nil)
+(setopt display-time-format "%e %a %R")
+(setopt battery-mode-line-format "[🔋%b%p%]")
+
+(setopt global-mode-string
+        '("" jabber-activity-mode-string
+          display-wifi-info-string
+          " " battery-mode-line-string
+          " " (:propertize ("" display-time-string)
+                           face tab-bar-tab)))
+
+(display-wifi-info-mode)
+(display-battery-mode)
+(display-time-mode)
+
+;;; Window management
+
+(after exwm-update-class-hook
+  (exwm-workspace-rename-buffer exwm-class-name))
+
+;;; Keys
+
+(setopt exwm-input-global-keys
+        `(;; Command shortcuts
+          ([?\s-p] . ,(^exwm-spawn "keepassxc"))
+          ([?\s-b] . ,(^exwm-spawn "firefox --new-tab"))
+          ;; 's-r': Reset (to line-mode).
+          ([?\s-r] . exwm-reset)
+          ;; 's-w': Switch workspace.
+          ([?\s-w] . exwm-workspace-switch)
+          ;; 's-&': Launch application.
+          ([?\s-&] . exwm-spawn)
+          ;; 's-N': Switch to certain workspace.
+          ,@(mapcar (lambda (i)
+                      `(,(kbd (format "s-%d" i)) .
+                        (lambda ()
+                          (interactive)
+                          (exwm-workspace-switch-create ,i))))
+                    (number-sequence 1 9))))
+
+(setopt exwm-input-simulation-keys
+        '(([?\C-b] . [left])
+          ([?\C-f] . [right])
+          ([?\C-p] . [up])
+          ([?\C-n] . [down])
+          ([?\C-a] . [home])
+          ([?\C-e] . [end])
+          ([?\M-v] . [prior])
+          ([?\C-v] . [next])
+          ([?\C-d] . [delete])
+          ([?\C-k] . [S-end delete])))
+
+;;; Startup
+
+;; Start exwm
+(exwm-enable)
+(exwm-systemtray-enable)
+
+;; Start other stuff
+(after init
+  (exwm-autostart "nextcloud")
+  (exwm-autostart "dunst"))
+
+;; Turn off debug mode
+(setopt toggle-debug-on-error nil)