return {
	"nvim-treesitter/nvim-treesitter",
	event = { "BufReadPost", "BufNewFile" },
	config = function()
		local ts = require("nvim-treesitter")

		ts.setup({
			ensure_installed = {
				"python",
				"go",
				"kotlin",
				"dart",
				"lua",
				"bash",
				"json",
				"yaml",
				"markdown",
				"vim",
				"vimdoc",
			},
			sync_install = false,
			auto_install = true,
			highlight = {
				enable = true,
				additional_vim_regex_highlighting = false,
			},
		})

		pcall(vim.treesitter.language.register, "html", "gotmpl")

		vim.api.nvim_create_autocmd("FileType", {
			group = vim.api.nvim_create_augroup("TreesitterOnDemand", { clear = true }),
			callback = function(args)
				local ft = args.match
				local lang = vim.treesitter.language.get_lang(ft) or ft

				local installed = ts.get_installed and ts.get_installed() or {}
				if not vim.list_contains(installed, lang) then
					pcall(function()
						local ok = ts.install(lang)
						if ok and ok.wait then
							ok:wait()
						end
					end)
				end

				pcall(vim.treesitter.start, args.buf, lang)
			end,
			desc = "enable nvim-treesitter and install parser if not installed",
		})
	end,
}