function start_server(args)
    local address = "0.0.0.0:5656"
    if args.args ~= "" then
        address = args.args
    end
    vim.fn.serverstart(address)
    print("NVim server started on " .. address)
end

vim.api.nvim_create_user_command(
    "StartServer",
    start_server,
    { nargs = "?" }
)