.config/nvim/after/plugin/treesitter.lua

require'nvim-treesitter.configs'.setup {
    -- A list of parser names, or "all"
    ensure_installed = { "help", "c", "cpp", "lua", "rust" },

    -- Install parsers synchronously (only applied to `ensure_installed`)
    sync_install = false,

    -- Automatically install missing parsers when entering buffer
    -- Recommendation: set to false if you don't have `tree-sitter` CLI installed locally
    auto_install = true,

    highlight = {
      -- `false` will disable the whole extension
      enable = true,

      -- Setting this to true will run `:h syntax` and tree-sitter at the same time.
      -- Set this to `true` if you depend on 'syntax' being enabled (like for indentation).
      -- Using this option may slow down your editor, and you may see some duplicate highlights.
      -- Instead of true it can also be a list of languages
      additional_vim_regex_highlighting = false,
    },
  }