diff --git a/alacritty/alacritty.toml b/alacritty/alacritty.toml
index 474c2a9..53a92bb 100644
--- a/alacritty/alacritty.toml
+++ b/alacritty/alacritty.toml
@@ -15,7 +15,7 @@ style = "MediumItalic"
 
 [font.normal]
 family = "terminus"
-style = "Regular"
+style = "Regular"#tag_for_shortcut
 
 [[keyboard.bindings]]
 action = "SpawnNewInstance"
diff --git a/bin/dap-update b/bin/dap-update
new file mode 100755
index 0000000..154b3a5
--- /dev/null
+++ b/bin/dap-update
@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+#
+
+
+DEVICE_PATH=$1
+
+if [ -z $DEVICE_PATH ] ; then
+	echo "missing 1st argument (DEVICE_PATH), ie. where to download the files"
+	exit 1
+fi
+
+rsync -avz --progress --ignore-existing tele-rpi5:/mnt/usb/audio/ $DEVICE_PATH
diff --git a/i3/config b/i3/config
index 497b226..cc498a4 100644
--- a/i3/config
+++ b/i3/config
@@ -180,6 +180,10 @@ for_window [window_role="alert"] floating enable
 exec feh --bg-fill ~/Sync-tablet/wallpapers/geometry02_croped1920x1080.png 
 exec xmodmap .Xmodmap
 
+# shortcut to switch regular/bold font in alacritty configuration
+bindsym $mod+Control+b exec sed -i 's/\"Regular\"#tag_for_shortcut/\"Bold\"#tag_for_shortcut/g' ~/.config/alacritty/alacritty.toml
+bindsym $mod+Control+Shift+b exec sed -i 's/\"Bold\"#tag_for_shortcut/\"Regular\"#tag_for_shortcut/g' ~/.config/alacritty/alacritty.toml
+
 # move current workspace to another display
 bindsym $mod+Control+k move workspace to output HDMI-1
 # bindsym $mod+Control+k move workspace to output DP-1
diff --git a/init.vim b/init.vim
index 563cb52..4edd254 100644
--- a/init.vim
+++ b/init.vim
@@ -98,6 +98,7 @@ Plug 'neoclide/coc.nvim', {'branch': 'release'}
 
 " focus mode
 Plug 'junegunn/goyo.vim'
+Plug 'szw/vim-maximizer' " use `CTRL+w; m` to maximize panel
 
 " vimwiki
 Plug 'vimwiki/vimwiki'
@@ -109,8 +110,8 @@ Plug 'tomasr/molokai'
 Plug 'srcery-colors/srcery-vim'
 Plug 'rakr/vim-one'
 Plug 'morhetz/gruvbox'
-
-Plug 'szw/vim-maximizer'
+Plug 'noahfrederick/vim-hemisu'
+Plug 'JaySandhu/xcode-vim'
 
 call plug#end()
 
diff --git a/nixos/common-configuration.nix b/nixos/common-configuration.nix
index 394bfcc..7528e94 100644
--- a/nixos/common-configuration.nix
+++ b/nixos/common-configuration.nix
@@ -100,6 +100,7 @@
 	feh
 	kolourpaint
 	calibre
+	tauon
 
 	# browsers
 	firefox
diff --git a/raspberry/metrics.md b/raspberry/metrics.md
new file mode 100644
index 0000000..466eff8
--- /dev/null
+++ b/raspberry/metrics.md
@@ -0,0 +1,28 @@
+# prometheus + graphana to monitor node
+*(src: https://theawesomegarage.com/blog/monitor-your-raspberry-pi-with-prometheus-and-grafana)*
+
+```
+sudo apt install prometheus
+
+sudo apt-get install prometheus-node-exporter
+```
+
+now visiting http://localhost:9100/metrics should return metrics
+
+start the prometheus-node-exporter:
+```
+sudo systemctl enable prometheus-node-exporter
+sudo systemctl start prometheus-node-exporter
+```
+
+for monitoring too the mounted devices (ie. usb):
+edit `/etc/default/prometheus-node-exporter`:
+```
+ARGS="--collector.filesystem.mount-points-exclude="^/(dev|proc|run|sys|mnt|var/lib/docker/.+)($|/)""
+```
+
+restart the service:
+`sudo systemctl restart prometheus-node-exporter`
+
+
+Install Graphana: https://grafana.com/docs/grafana/latest/setup-grafana/installation/
diff --git a/zathurarc b/zathurarc
index 804623b..4e034a9 100644
--- a/zathurarc
+++ b/zathurarc
@@ -1,3 +1,3 @@
 " this file goes at ~/.config/zathura/zathurarc
 
-map <C-o> exec "zathura $FILE"
+map <C-O> exec "zathura $FILE"