return function()
	-- Setup git completion source
	require("cmp_git").setup()

	-- Set completeopt to have a better completion experience
	vim.o.completeopt = 'menuone,noselect'

	-- luasnip setup
	local luasnip = require 'luasnip'

	-- nvim-cmp setup
	local cmp = require 'cmp'
	cmp.setup {
		snippet = {
			expand = function(args)
				require('luasnip').lsp_expand(args.body)
			end,
		},
		mapping = {
			['<C-p>'] = cmp.mapping.select_prev_item(),
			['<C-n>'] = cmp.mapping.select_next_item(),
			['<C-d>'] = cmp.mapping.scroll_docs(-4),
			['<C-f>'] = cmp.mapping.scroll_docs(4),
			['<C-Space>'] = cmp.mapping.complete(),
			['<C-e>'] = cmp.mapping.close(),
			['<CR>'] = cmp.mapping.confirm {
				behavior = cmp.ConfirmBehavior.Replace,
				select = true,
			},
			['<Tab>'] = function(fallback)
				if cmp.visible() then
					cmp.select_next_item()
				elseif luasnip.expand_or_jumpable() then
					luasnip.expand_or_jump()
				else
					fallback()
				end
			end,
			['<S-Tab>'] = function(fallback)
				if cmp.visible() then
					cmp.select_prev_item()
				elseif luasnip.jumpable(-1) then
					luasnip.jump(-1)
				else
					fallback()
				end
			end,
		},
		sources = {
			{ name = 'nvim_lsp' },
			{ name = 'luasnip' },
			{ name = 'path' },
			{ name = 'git' },
			{ name = 'buffer' },
		},
	}

	-- Enable autopairs when enter is processed
	-- on completion
	local cmp_autopairs = require 'nvim-autopairs.completion.cmp'
	cmp.event:on(
		'confirm_done',
		cmp_autopairs.on_confirm_done()
	)

	-- load friendly-snippets to luasnip
	require('luasnip/loaders/from_vscode').lazy_load()
end