My earliest prototype used ascii characters for snakes and fruit. This had a problem - since terminal characters are twice as tall as they are wide, vertical movement felt much faster than horizontal movement:
境外单位或者个人向自然人出租境内不动产，有境内代理人的，由境内代理人申报缴纳税款。
，这一点在Line官方版本下载中也有详细论述
第九条 境内单位或者个人跨境销售下列服务、无形资产，税率为零：
const input = Stream.pull(readable, transform1, transform2);