return {
	"hrsh7th/nvim-cmp",
	event = "InsertEnter",
	dependencies = {
		"hrsh7th/cmp-buffer", -- source for text in buffer
		"hrsh7th/cmp-path", -- source for file system paths
		"hrsh7th/cmp-cmdline", -- source for command mode
		"saadparwaiz1/cmp_luasnip", -- for autocompletion
		"rafamadriz/friendly-snippets", -- useful snippets
		"onsails/lspkind.nvim", -- vs-code like pictograms
		{
			"L3MON4D3/LuaSnip",
			-- follow latest release of given major
			version = "v2.*",
			-- install jsregexp
			build = "make install_jsregexp",
		}, -- snippet engine
	},
	config = function()
		local cmp = require("cmp")
		local luasnip = require("luasnip")
		local lspkind = require("lspkind")

		-- Loads vscode style snippets from installed plugins (e.g. friendly-snippets)
		require("luasnip.loaders.from_vscode").lazy_load()

		-- `/` cmdline setup.
		cmp.setup.cmdline("/", {
			mapping = cmp.mapping.preset.cmdline(),
			sources = {
				{ name = "buffer" },
			},
		})

		-- `:` cmdline setup.
		cmp.setup.cmdline(":", {
			mapping = cmp.mapping.preset.cmdline(),
			sources = cmp.config.sources({
				{ name = "path" },
			}, {
				{
					name = "cmdline",
					option = {
						ignore_cmds = { "Man", "!" },
					},
				},
			}),
		})

		-- Setup completion options and snippets and mappings
		cmp.setup({
			-- Configure how the completion menu behaves
			-- menu: show menu
			-- menuone: show menu even when there is only one option
			-- preview: preview window explaining the offered completion
			-- select: select an option automatically (noselect is the reverse)
			completion = {
				completeopt = "menu,menuone,preview,select",
			},
			-- Configure how nvim-cmp interacts with snippet engine
			snippet = {
				expand = function(args)
					luasnip.lsp_expand(args.body)
				end,
			},
			mapping = cmp.mapping.preset.insert({
				["<C-k>"] = cmp.mapping.select_prev_item(), -- previous suggestion
				["<C-j>"] = cmp.mapping.select_next_item(), -- next suggestion
				["<C-b>"] = cmp.mapping.scroll_docs(-4), -- scroll down in docs
				["<C-f>"] = cmp.mapping.scroll_docs(4), -- scroll up in docs
				["<C-Up>"] = cmp.mapping.scroll_docs(-4), -- scroll down in docs
				["<C-Down>"] = cmp.mapping.scroll_docs(4), -- scroll up in docs
				["<C-Space>"] = cmp.mapping.complete(), -- show completion suggestions
				["<C-e>"] = cmp.mapping.abort(), -- close completion window
				["<C-l>"] = cmp.mapping.complete({
					config = { sources = {
						{ name = "nvim_lsp" },
					} },
				}), -- show only lsp completions
				["<C-s"] = cmp.mapping.complete({
					config = { sources = {
						{ name = "luasnip" },
					} },
				}), -- show only snippet completions

				-- On CR, insert selected snippet or completion
				["<CR>"] = cmp.mapping(function(fallback)
					if cmp.visible() then
						if luasnip.expandable() then
							luasnip.expand()
						else
							cmp.confirm({
								select = true,
							})
						end
					else
						fallback()
					end
				end),

				-- On tab with completion open, go to next option
				["<Tab>"] = cmp.mapping(function(fallback)
					if cmp.visible() then
						cmp.select_next_item()
					elseif luasnip.locally_jumpable(1) then
						luasnip.jump(1)
					else
						fallback()
					end
				end, { "i", "s", "c" }),

				-- On shift tab with completion open, go to prev option
				["<S-Tab>"] = cmp.mapping(function(fallback)
					if cmp.visible() then
						cmp.select_prev_item()
					elseif luasnip.locally_jumpable(-1) then
						luasnip.jump(-1)
					else
						fallback()
					end
				end, { "i", "s", "c" }),
			}),

			-- Sources for autocompletion
			sources = cmp.config.sources({
				{ name = "nvim_lsp" }, -- lsp suggestions
				{ name = "luasnip" }, -- snippets
				{ name = "buffer" }, -- text within current buffer
				{ name = "path" }, -- file system paths
			}),

			-- Configure lspkind for vs-code like pictograms in completion menu
			formatting = {
				format = lspkind.cmp_format({
					maxwidth = 50,
					ellipsis_char = "...",
					show_labelDetails = true,
				}),
			},
		})
	end,
}