# So WTF is HA7CH

> Published 2026-04-30 · By lawted (https://x.com/lawted2) · Published on HA7CH (https://ha7ch.com)
> Canonical: https://ha7ch.com/writing/so-wtf-is-ha7ch

## English

3 a.m. on my side. I was chatting with my American friend on WeChat, morning for him. Mid-conversation, he tossed out an idea: what if we build Raily Friends, a high-speed rail travel buddy?

I said, let's fucking go.

Two hours later, my frontend was done. I went to sleep. He picked up the relay on the U.S. side, building out the chat backend. By noon China time, the thing was actually usable. We posted it on WeChat Moments right on schedule.

It got a wave of attention and feedback the moment it went live.

That was the moment we realized something. We really can ship in 48 hours.

So, WTF is HA7CH? It's a tiny little club.

Anyone here can speak up with an idea, we build it fast, or build it together with you. The moment it ships, we throw it on WeChat Moments and RedNote for people to use.

If people use it, we keep maintaining it. If nobody does, we drop it and move to the next one.

The reason this works is because vibe coding is fucking fast right now. As long as you have a decent idea, you don't need to wait for requirement docs, you don't need to wait for design mocks, you don't need to wait for anything. Just build it.

And because we ship fast, we don't get too attached to any single product. We don't cling. Maybe this week it's this product, next week it's the next one.

Before ByteDance hit it big, Zhang Yiming had built 5 products. He failed 5 times. Back then there was no AI, and shipping anything took forever. One or two years per product was the norm.

In the AI era, failing 500 times before you hit it is fine. After all, our shipping speed is 100 times faster.

## 中文

凌晨三点，我跟我美国的朋友在微信上聊天。他那边是早上。聊着聊着，他突然冒出一个想法：要不我们做一个 Raily Friends，高铁搭子？

我说，let's fucking go。

两个小时后，我这边前端就做完了。做完我就去睡了。他在美国那边接力，把后端的聊天功能都补齐。等中国中午十二点的时候，东西已经能用了。准时发朋友圈。

一上线就收获了一波关注和反馈。

那一刻，我们意识到一件事。We really can ship in 48 hours.

So, WTF is HA7CH? 它就是一个小小的 club。

在这里，谁有 idea 就直接说出来，我们快速把它做出来，或者拉上大家一起做。做完立马丢到朋友圈、小红书，给大家用。

有人用，我们就继续维护下去。没人用，立马放掉，去做下一个。

之所以能这样，是因为 vibe coding 现在快到这种程度。你只要有一个不错的想法，不需要等需求文档、不需要等设计稿、不需要等任何东西，直接做就行。

而且因为做得快，我们对单个产品的期待反而没那么高了。我们不会死守。也许这一周做这个产品，下一周就开始做下一个了。

字节跳动成功之前，张一鸣做了 5 个产品，失败了 5 次。那个时候没有 AI，做东西很慢，一个产品做一两年是常态。

在 AI 时代，我们成功之前失败 500 次也没什么。毕竟，我们的开发速度提升了 100 倍。