return {
  'akinsho/toggleterm.nvim',
  version = '*',
  opts = {
    -- size can be a number or function which is passed the current terminal
    size = function(term)
      if term.direction == 'horizontal' then
        return 15
      elseif term.direction == 'vertical' then
        return vim.o.columns * 0.4
      end
    end,
    open_mapping = [[<c-\>]], -- or { [[<c-\>]], [[<c-¥>]] } if you also use a Japanese keyboard.
    hide_numbers = true, -- hide the number column in toggleterm buffers
    shade_filetypes = {},
    autochdir = false, -- when neovim changes it current directory the terminal will change it's own when next it's opened
    shade_terminals = true, -- NOTE: this option takes priority over highlights specified so if you specify Normal highlights you should set this to false
    start_in_insert = true,
    insert_mappings = true, -- whether or not the open mapping applies in insert mode
    terminal_mappings = true, -- whether or not the open mapping applies in the opened terminals
    persist_size = true,
    persist_mode = true, -- if set to true (default) the previous terminal mode will be remembered
    direction = 'float',
    close_on_exit = true, -- close the terminal window when the process exits
    clear_env = false, -- use only environmental variables from `env`, passed to jobstart()
    -- Change the default shell. Can be a string or a function returning a string
    shell = function()
      if vim.fn.executable 'zsh' == 1 then
        return 'zsh'
      else
        return 'bash'
      end
    end,
    auto_scroll = true, -- automatically scroll to the bottom on terminal output
    -- This field is only relevant if direction is set to 'float'
    float_opts = {
      -- The border key is *almost* the same as 'nvim_open_win'
      -- see :h nvim_open_win for details on borders however
      -- the 'curved' border is a custom border type
      -- not natively supported but implemented in this plugin.
      border = 'single',
      -- like `size`, width, height, row, and col can be a number or function which is passed the current terminal
      winblend = 0,
      title_pos = 'left',
    },
    winbar = {
      enabled = false,
      name_formatter = function(term) --  term: Terminal
        return term.name
      end,
    },
    responsiveness = {
      -- breakpoint in terms of `vim.o.columns` at which terminals will start to stack on top of each other
      -- instead of next to each other
      -- default = 0 which means the feature is turned off
      horizontal_breakpoint = 135,
    },
  },
}