return {
	"hrsh7th/nvim-cmp",
	event = "InsertEnter",
	dependencies = {
		"hrsh7th/cmp-nvim-lsp",
		"hrsh7th/cmp-buffer",
		"hrsh7th/cmp-path",
		"L3MON4D3/LuaSnip",
		"zbirenbaum/copilot-cmp", -- Copilot completion source
	},
	opts = function()
		local cmp = require("cmp")
		local luasnip = require("luasnip")

		return {
			snippet = {
				expand = function(args)
					luasnip.lsp_expand(args.body)
				end,
			},
			mapping = cmp.mapping.preset.insert({
				["<C-Space>"] = cmp.mapping.complete(),
				["<CR>"] = cmp.mapping.confirm({ select = false }),
				["<C-n>"] = cmp.mapping.select_next_item(),
				["<C-p>"] = cmp.mapping.select_prev_item(),
				["<C-e>"] = cmp.mapping.abort(),
			}),
			sources = cmp.config.sources({
				{ name = "copilot", group_index = 2 }, -- Copilot suggestions (priority 1)
				{ name = "nvim_lsp", group_index = 2 },
				{ name = "path", group_index = 2 },
				{ name = "buffer", group_index = 2 },
			}),
			preselect = cmp.PreselectMode.None,
			completion = { completeopt = "menu,menuone,noinsert,noselect" },
			window = {
				completion = cmp.config.window.bordered({
					border = {
						{ "🭽", "FloatBorder" },
						{ "▔", "FloatBorder" },
						{ "🭾", "FloatBorder" },
						{ "▕", "FloatBorder" },
						{ "🭿", "FloatBorder" },
						{ "▁", "FloatBorder" },
						{ "🭼", "FloatBorder" },
						{ "▏", "FloatBorder" },
					},
					winhighlight = "Normal:NormalFloat,FloatBorder:FloatBorder",
				}),
				documentation = cmp.config.window.bordered({
					border = {
						{ "🭽", "FloatBorder" },
						{ "▔", "FloatBorder" },
						{ "🭾", "FloatBorder" },
						{ "▕", "FloatBorder" },
						{ "🭿", "FloatBorder" },
						{ "▁", "FloatBorder" },
						{ "🭼", "FloatBorder" },
						{ "▏", "FloatBorder" },
					},
					winhighlight = "Normal:NormalFloat,FloatBorder:FloatBorder",
				}),
			},
		}
	end,
	config = function(_, opts)
		require("cmp").setup(opts)
	end,
}