Use vim anywhere by filling clipboard in i3 (inspired by vim-anywhere)

i3.config

# uses simple terminal (could be replaced with i3-sensible-terminal)
# replace xclip with the clipboard tool of your choice
# will have last selection as content in the editor per default
bindsym $mod+Ctrl+Return exec "zsh -c 'file=$(mktemp); xclip -o > $file;  st -n FloatingST -e vim $file; head -c -1 $file| xclip -se c;'"
for_window [instance="Floating.*"] floating enable