Create vim bufhidden helper plugin

vim/plugin/bufhiddendelete.lua

@@ -0,0 +1,13 @@
+vim.api.nvim_create_user_command("BHD", function()
+	vim.bo.bufhidden = "delete"
+end, {})
+
+vim.g.ephemeral_buffers = false
+
+vim.api.nvim_create_autocmd("BufAdd", {
+	callback = function(args)
+		if vim.g.ephemeral_buffers then
+			vim.bo[args.buf].bufhidden = "delete"
+		end
+	end
+})

vimrc

@@ -1,6 +1,3 @@
-" vim: set bufhidden=delete noexpandtab tabstop=3 :miv "
-"!!! makes use of marker '
-
 " Set up the runtime path
 set runtimepath=$VIMRUNTIME,$HOME/.config/nvim,$HOME/.vim
 let &rtp=&rtp.','.expand('<sfile>:p:h').'/vim'