return {
    "mbbill/undotree",

    config = function()
        if vim.fn.has("persistent_undo") == 1 then
            local target_path = vim.fn.expand("~/.undodir")

            -- Create the directory if it doesn't exist
            if vim.fn.isdirectory(target_path) == 0 then
                vim.fn.mkdir(target_path, "p", "0700")
            end

            -- Set the undodir and enable undo file
            vim.o.undodir = target_path
            vim.o.undofile = true
        end
    end
}