return {
  "hrsh7th/nvim-cmp",
  ---@param opts cmp.ConfigSchema
  opts = function(_, opts)
    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")

    opts.mapping = vim.tbl_extend("force", opts.mapping, {
      ["<Tab>"] = cmp.mapping(function(fallback)
        if cmp.visible() then
          -- You could replace select_next_item() with confirm({ select = true }) to get VS Code autocompletion behavior
          cmp.select_next_item()
        -- You could replace the expand_or_jumpable() calls with expand_or_locally_jumpable()
        -- this way you will only jump inside the snippet region
        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" }),
    })
  end,
}
