Install elpa-async by entering the following commands in the terminal:
sudo apt update sudo apt install elpa-async
simple library for asynchronous processing in Emacs
async.el is a module for doing asynchronous processing in Emacs. The most common application is to make dired move and rename files asynchronously i.e. in the background. Then the user need not wait for the move or copy to complete before they can use Emacs for other tasks.