diff --git a/how_to b/how_to
index 5f29a23..d5b7c59 100644
--- a/how_to
+++ b/how_to
@@ -877,6 +877,7 @@ Qutebrowser
         https://gitlab.com/jgkamat/jblock
     Config:
         :set auto-save.session true
+        # ...and much much more
 
 Alsa set default card
     Get list of cards:
@@ -983,3 +984,39 @@ Check for available package updates with Arch/Artix:
 Git push and pull using different URL/protocols:
     # https://www.scivision.dev/git-pull-https-push-ssh/
     git config url."git@example.org:user/".pushInsteadOf "https://example.org/user/"
+
+Setup a midi synth:
+    # http://www.tedfelix.com/linux/linux-midi.html
+    Install:
+        sudo pacman -S fluidsynth
+        sudo pacman -S soundfont-fluid  # Sound pack
+        #? sudo modprobe snd_virmidi  # Create a midi device file /dev/midi2
+    Quick n dirty setup:
+        fluidsynth -a <alsa|pulseaudio> -m alsa_seq /usr/share/soundfonts/FluidR3_GM.sf2
+    Diagnose:
+        aconnect -i/-o
+
+Consistent desktop theme:
+    # just some disorganized notes:
+    # install GTK2/3 theme + icons
+    # Get canonical theme name from /usr/share/themes folder names
+    ~/.config/gtk-3.0/settings.ini
+        [Settings]
+        gtk-icon-theme-name = <Name>
+        gtk-theme-name = <Name>
+    ~/.gtkrc-2.0
+        gtk-icon-theme-name = "<Name>"
+        gtk-theme-name = "<Name>" ~/.config/Trolltech.conf
+        [Qt]
+        style=GTK+
+    ~/.config/dunst/dunstrc
+        [global]
+            # Depending on the theme, relevant icons might be elsewhere
+            icon_path = /usr/share/icons/<theme>/symbolic/status
+    sudo pacman -S qt5ct
+    trizen -S qt5-styleplugins
+    export QT_QPA_PLATFORMTHEME=qt5ct
+
+    themes:
+        Gruvbox-Material-Dark has issues with GIMP and probably caused a few other crashes
+        gruvbox-dark-[icons-]gtk doesn't look too bad at first glance (GIMP not broken) (is on AUR)