Initial i3 configuration

This is derived from my Awesome configuration. Still a lot to do from
a WM perspective. The organization is a bit different and I am giving
it up on the per-display systemd units as it does not really work due
to the fact we only have one user DBus and one environment.

config

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+# i3 config file (v4)
+
+set $up k
+set $down j
+set $left h
+set $right l
+set $mod Mod4
+set $term vbeterm
+
+font pango:Terminus 9
+
+# Style
+default_border pixel 3
+default_floating_border pixel 3
+
+# Use pactl to adjust volume in PulseAudio.
+bindsym XF86AudioRaiseVolume exec --no-startup-id pactl set-sink-volume @DEFAULT_SINK@ +10%
+bindsym XF86AudioLowerVolume exec --no-startup-id pactl set-sink-volume @DEFAULT_SINK@ -10%
+bindsym XF86AudioMute exec --no-startup-id pactl set-sink-mute @DEFAULT_SINK@ toggle
+bindsym XF86AudioMicMute exec --no-startup-id pactl set-source-mute @DEFAULT_SOURCE@ toggle
+
+# use Mouse+$mod to drag floating windows to their wanted position
+floating_modifier $mod
+
+# start a terminal
+bindsym $mod+Return exec $term
+
+# kill focused window
+bindsym $mod+x kill
+
+# execute command
+bindsym $mod+r exec --no-startup-id dmenu_run
+
+# change focus
+bindsym $mod+$left focus left
+bindsym $mod+$down focus down
+bindsym $mod+$up focus up
+bindsym $mod+$right focus right
+
+# move focused window
+bindsym $mod+Shift+$left move left
+bindsym $mod+Shift+$down move down
+bindsym $mod+Shift+$up move up
+bindsym $mod+Shift+$right move right
+
+# resize focused window
+bindsym $mod+Ctrl+$left       resize shrink width 10 px or 10 ppt
+bindsym $mod+Ctrl+$down       resize grow height 10 px or 10 ppt
+bindsym $mod+Ctrl+$up         resize shrink height 10 px or 10 ppt
+bindsym $mod+Ctrl+$right      resize grow width 10 px or 10 ppt
+
+# change split orientation
+bindsym $mod+v split toggle
+
+# enter fullscreen mode for the focused container
+bindsym $mod+f fullscreen toggle
+
+# change container layout (stacked, tabbed, toggle split)
+bindsym $mod+s layout stacking
+bindsym $mod+w layout tabbed
+bindsym $mod+e layout toggle split
+
+# toggle tiling / floating
+bindsym $mod+Shift+space floating toggle
+
+# change focus between tiling / floating windows
+bindsym $mod+space focus mode_toggle
+
+# focus the parent container
+bindsym $mod+a focus parent
+
+# Define names for default workspaces for which we configure key bindings later on.
+# We use variables to avoid repeating the names in multiple places.
+set $ws1 "1"
+set $ws2 "2"
+set $ws3 "3"
+set $ws4 "4"
+set $ws5 "5"
+set $ws6 "6"
+set $ws7 "7"
+set $ws8 "8"
+set $ws9 "9"
+set $ws10 "10"
+
+# switch to workspace
+bindsym $mod+1 workspace number $ws1
+bindsym $mod+2 workspace number $ws2
+bindsym $mod+3 workspace number $ws3
+bindsym $mod+4 workspace number $ws4
+bindsym $mod+5 workspace number $ws5
+bindsym $mod+6 workspace number $ws6
+bindsym $mod+7 workspace number $ws7
+bindsym $mod+8 workspace number $ws8
+bindsym $mod+9 workspace number $ws9
+bindsym $mod+0 workspace number $ws10
+bindsym $mod+Tab workspace back_and_forth
+
+# move focused container to workspace
+bindsym $mod+Shift+1 move container to workspace number $ws1
+bindsym $mod+Shift+2 move container to workspace number $ws2
+bindsym $mod+Shift+3 move container to workspace number $ws3
+bindsym $mod+Shift+4 move container to workspace number $ws4
+bindsym $mod+Shift+5 move container to workspace number $ws5
+bindsym $mod+Shift+6 move container to workspace number $ws6
+bindsym $mod+Shift+7 move container to workspace number $ws7
+bindsym $mod+Shift+8 move container to workspace number $ws8
+bindsym $mod+Shift+9 move container to workspace number $ws9
+bindsym $mod+Shift+0 move container to workspace number $ws10
+
+# reload/restart
+bindsym $mod+Shift+c reload
+bindsym $mod+Shift+r restart
+
+# Lock screen
+bindsym XF86ScreenSaver exec --no-startup-id xset s activate
+bindsym $mod+Delete exec --no-startup-id xset s activate
+
+# start stuff
+exec_always --no-startup-id systemctl --user start --no-block wallpaper.service