return {
  'nvim-treesitter/nvim-treesitter',
  build = ':TSUpdate',
  config = function()
    require('nvim-treesitter.install').compilers = {'clang'}
    require('nvim-treesitter.configs').setup({
      ensure_installed = 'all',
      highlight = {
        enable = true,
        additional_vim_regex_highlighting = false
      },
      rainbow = {
        enable = true,
        extended_mode = true, -- Also highlight non-bracket delimiters like html tags, boolean or table: lang -> boolean
        max_file_lines = nil, -- Do not enable for files with more than n lines, int
        -- colors = {}, -- table of hex strings
        -- termcolors = {} -- table of colour name strings
      },
      indent = {
        enable = false -- maybe buggy
      },
      textobjects = {
        select = {
          enable = true,

          -- Automatically jump forward to textobj, similar to targets.vim
          lookahead = true,

          keymaps = {
            -- You can use the capture groups defined in textobjects.scm
            ['af'] = '@function.outer',
            ['if'] = '@function.inner',
            ['ac'] = '@class.outer',
            ['ic'] = '@class.inner',
          },
        },
        lsp_interop = {
          enable = true,
          border = 'none',
          peek_definition_code = {
            ['<leader>df'] = '@function.outer',
            ['<leader>dF'] = '@class.outer',
          },
        },
      },
    })
    local parser = require('nvim-treesitter.parsers').filetype_to_parsername
    parser.groovy = 'java' -- the someft filetype will use the python parser and queries.
    require('nvim-treesitter.install').prefer_git = true
  end
}