return {
	"hrsh7th/nvim-cmp",
	dependencies = {
		"hrsh7th/cmp-nvim-lsp", -- language server as completion source
		"hrsh7th/cmp-buffer", -- buffers as completion source
		"hrsh7th/cmp-path", -- paths as completion source
		"hrsh7th/cmp-cmdline", -- cmdline as completion source

		"hrsh7th/cmp-nvim-lsp-signature-help", -- emphasize current parameter in completions

		"L3MON4D3/LuaSnip", -- I use luasnip anyway
		"saadparwaiz1/cmp_luasnip", -- luasnip completion source
	},
	config = function()
		local cmp = require("cmp")
		local luasnip = require("luasnip")
		require("luasnip.loaders.from_snipmate").lazy_load()
		require("luasnip.loaders.from_lua").lazy_load()
		local has_words_before = function ()
			local line, col = unpack(vim.api.nvim_win_get_cursor(0))
			return col ~= 0 and vim.api.nvim_buf_get_lines(0, line - 1, line, true)[1]:sub(col, col):match("%s") == nil
		end
		cmp.setup({
			snippet = {
				expand = function(args)
					luasnip.lsp_expand(args.body)
				end,
			},
			mapping = {
				["<C-p>"] = cmp.mapping.select_prev_item(),
				["<C-n>"] = cmp.mapping.select_next_item(),
				["<C-Space>"] = cmp.mapping.complete(),
				["<CR>"] = cmp.mapping.confirm({
					behavior = cmp.ConfirmBehavior.Replace,
					select = true
				}),
				["<Tab>"] = cmp.mapping(function(fallback)
					if cmp.visible() then
						cmp.select_next_item()
					elseif luasnip.expand_or_jumpable() then
						luasnip.expand_or_jump()
					elseif has_words_before() then
						cmp.complete()
					else
						fallback()
					end
				end, { "i", "s" }),
				["<S-Tab>"] = cmp.mapping(function(fallback)
					if cmp.visible() then
						cmp.select_prev_item()
					elseif luasnip.jumpable(-1) then
						luasnip.jump(-1)
					else
						fallback()
					end
				end, { "i", "s" }),
			},
			sources = {
				{ name = "nvim_lsp" },
				{ name = "nvim_lsp_signature_help" },
				{ name = "luasnip" },
				{ name = "buffer" },
				{ name = "path" },
			},
		})
	end,
}