Hide app from dock

[pabloab]

Running Dash to Dock on GNOME Shell 3.36.9 to run fullscreen Alacritty. If it is possible for the extension, would be nice to hide the app from the Dock (as Guake behavior) regardless of window visibility state.

If we could just run a command instead of only an App/.desktop would make things easier. xdotool windowunmap $(wmctrl -l -p | grep $(pgrep alacritty) | awk '{print $1}') unmap a window, and this hide it from dock/taskbar. On .desktop:

Exec=sh -c '~/.local/bin/alacritty & sleep 1;/usr/bin/wmctrl -x -r Alacritty.Alacritty -b add,skip_taskbar'