return {
    {
	'L3MON4D3/LuaSnip',
	dependencies = {
	    'iurimateus/luasnip-latex-snippets.nvim',
	    'rafamadriz/friendly-snippets',
	},
	config = function()
	    require('luasnip-latex-snippets').setup()
	    require("luasnip.loaders.from_lua").lazy_load()
	    require("luasnip.loaders.from_vscode").lazy_load()
	end
    },
    {
	'hrsh7th/nvim-cmp',
	event = 'InsertEnter',
	dependencies = {
	    'hrsh7th/cmp-nvim-lsp',
	    'hrsh7th/cmp-buffer',
	    'hrsh7th/cmp-path',
	    'saadparwaiz1/cmp_luasnip',
	},

	opts = function()
	    local has_words_before = function()
		unpack = unpack or table.unpack
		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

	    local luasnip = require("luasnip")
	    local cmp = require('cmp')

	    luasnip.config.set_config({
		history = true,
		enable_autosnippets = true,
	    })

	    return {
		snippet = {
		    expand = function(args)
			require('luasnip').lsp_expand(args.body)
		    end,
		},
		mapping = cmp.mapping.preset.insert({

		    ['<Space>'] = cmp.mapping.confirm({ select = false }),

		    ["<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 = cmp.config.sources({
		    { name = 'nvim_lsp' },
		    { name = 'luasnip' },
		    { name = 'buffer' },
		    { name = 'path' },
		})
	    }
	end,
    },
}