The xonsh shell wrapper to running the command via vim read.
xonsh
cd $XDG_DATA_HOME
git clone https://github.com/anki-code/xonsh-vim-read
echo 'set shell=$XDG_DATA_HOME/xonsh-vim-read/xonsh-vim-read' >> ~/.vimrc
vim
:read !2+2
# 4
Tested only on Linux.
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