Open files or folders in Atom from OSX Finder

Mac computers come with the Automator application.

Open it.

Create a new “Service” : File > New > Service.

In the library of actions on the left sidebar, you will find one called Run Shell Script : add it to the workflow.

Set the service to receive selected files or folders, the shell as /bin/zsh, and the input to be passed as arguments.

Then enter /Applications/ -n $@ in the text area.

Finally, save the workflow as “Open in Atom”.

And you are done !