return {
    'nvim-treesitter/nvim-treesitter',
    branch = 'main',
    lazy = false,
    config = function()
        -- 1. Install Parsers
        require('nvim-treesitter').install({
            "typst", "cpp", "c", "lua", "vim", "dockerfile", "python", "java",
            "cmake", "diff", "gitcommit", "html", "css", "javascript", "json",
            "rust", "sql", "yaml", "markdown", "markdown_inline", "nix", "bibtex"
        })

        -- 2. Safe Autocmd for Highlighting & Indent
        vim.api.nvim_create_autocmd('FileType', {
            callback = function(args)
                -- Get the language associated with the filetype
                local lang = vim.treesitter.language.get_lang(vim.bo[args.buf].filetype)
                if not lang then return end

                -- IGNORE specific filetypes or large files
                if lang == "ini" then return end

                local max_filesize = 2000 * 1024 -- 2MB
                local ok, stats = pcall(vim.uv.fs_stat, vim.api.nvim_buf_get_name(args.buf))
                if ok and stats and stats.size > max_filesize then return end

                -- SAFEGUARD: Try to start. If it fails (e.g., 'snacks_layout_box'), 'success' will be false.
                local success, _ = pcall(vim.treesitter.start, args.buf, lang)

                -- Only enable indentation if Treesitter actually started successfully
                if success then
                    vim.bo[args.buf].indentexpr = "v:lua.require'nvim-treesitter'.indentexpr()"
                end
            end,
        })
    end,
}
