return {
  {
    'nvim-treesitter/nvim-treesitter',
    dependencies = {
      -- TODO: https://github.com/nvim-treesitter/nvim-treesitter-context
      { 'nvim-treesitter/nvim-treesitter-refactor', lazy = false },
      { 'nvim-treesitter/nvim-treesitter-textobjects', lazy = false },
      { 'nvim-treesitter/playground', cmd = { 'TSPlayground' } },
    },
    lazy = false,
    build = ':TSUpdate',
    config = function(_, opts)
      -- TODO: overwrite parser configs, insert gotmpl

      require('nvim-treesitter.configs').setup(opts)

      -- use bash parser for gentoo ebuilds
      vim.treesitter.language.register('bash', 'ebuild')

      -- register mediawiki parser
      -- local parser_configs = require('nvim-treesitter.parsers').get_parser_configs()
      -- parser_configs.mediawiki = {
      --   install_info = {
      --     url = 'github.com/Ordoviz/tree-sitter-mediawiki',
      --     files = { 'src/parser.c' },
      --     branch = 'main',
      --     generate_requires_npm = false,
      --     requires_generate_from_grammar = false,
      --   },
      --   filetype = 'mediawiki',
      -- }
    end,
    opts = {
      ensure_installed = {
        'bash',
        'bibtex',
        'c',
        'c_sharp',
        'cmake',
        'comment',
        'cpp',
        'css',
        'dockerfile',
        'go',
        'gomod',
        'gotmpl',
        'gowork',
        'hare',
        'hcl',
        'html',
        'java',
        'javascript',
        'json',
        'jsonc',
        'kotlin',
        'latex',
        'ledger',
        'lua',
        'make',
        'markdown',
        'markdown_inline',
        'ninja',
        'norg',
        'python',
        'query',
        'regex',
        'rust',
        'scss',
        'sql',
        'toml',
        'typescript',
        'vim',
        'vimdoc',
        'yaml',
        'zig',

        -- external parsers
        -- 'mediawiki', -- TODO: missing queries
      },
      highlight = {
        enable = true,
        additional_vim_regex_highlighting = { 'markdown' },
      },
      indent = {
        enable = true,
      },
      refactor = {
        navigation = {
          enable = true,
          keymaps = {
            goto_definition = 'gd',
          },
        },
        smart_rename = {
          enable = true,
          keymaps = {
            smart_rename = 'grr',
          },
        },
      },
      textobjects = {
        select = {
          enable = true,
          keymaps = {
            ['ib'] = '@block.inner',
            ['ab'] = '@block.outer',
            -- ['ic'] = '@conditional.inner',
            -- ['ac'] = '@conditional.outer',
            ['if'] = '@function.inner',
            ['af'] = '@function.outer',
            ['il'] = '@loop.inner',
            ['al'] = '@loop.outer',
            ['is'] = '@scopename.inner',
            ['as'] = '@scopename.outer',
            ['ic'] = '@comment.outer',
          },
          selection_mode = {
            ['@comment.outer'] = 'V',
          },
        },
      },
    },
  },
}