Use Neovim in iTerm as a GUI editor

EditInNeovim.applescript

on run {input, parameters}
	set cmd to ""
	if input is not {} then
		set filePath to POSIX path of input
		set cmd to ":e " & filePath
	end if
	
	tell application "iTerm"
		set mywindow to (create window with profile "neovim")
		tell the current session in mywindow
			write text cmd
		end tell
		try
			repeat
				tell the current session in mywindow
					-- querying the id will raise an exception if the window is closed
					set dummy to id
					delay 0.5
				end tell
			end repeat
		on error errStr number errorNumber
			-- pass
		end try
	end tell
end run

Create a new app in Automator, add a “Run Applescript” action, and paste the script.

Improves on https://blog.schembri.me/post/neovim-everywhere-on-macos/ by blocking execution until the iTerm window is closed.