A story · Friday, 23:10一个故事 · 周五 23:10
"I just want to know when the build breaks."“我只想知道构建什么时候挂了。”
Ray maintains a small open-source library. Every night the CI runs, and every morning he opens his laptop to find out whether it broke. Notifications are useless: they sit among forty other ones.阿哲维护着一个小开源库。CI 每晚跑一次，他每天早上都得打开电脑才知道挂没挂。推送通知没用，它总是淹没在另外四十条通知里。
So on Friday night he types one line to the box on his shelf:于是周五晚上，他对书架上的那个盒子打了一句话：
Make me a little cat that sits on my desk. Ears glow red if last night's CI failed, green if it passed. Press its head to rerun.给我做只小猫放桌上。昨晚 CI 挂了耳朵亮红灯，过了亮绿灯。按一下脑袋就重跑。
CtenoPlan: ESP32-S3 Pod board, 2 RGB LEDs, 1 button, coin cell. I'll write firmware on the Pod protocol, generate a cat shell in OpenSCAD, slice it for your printer, and wire it to your repo's CI. Printing takes about 2h40m. Approve the print?方案：ESP32-S3 Pod 主板、2 颗 RGB 灯、1 个按键、纽扣电池。我按 Pod 协议写固件，用 OpenSCAD 生成猫形外壳，给你的打印机切片，再接上仓库的 CI。打印大约 2 小时 40 分。开始打印吗？
Approve开始
What happened overnight这一夜发生了什么
- 23:14Writes a parametric cat shell (OpenSCAD), leaving a slot for the Pod board and a hole for the button.写好参数化猫形外壳（OpenSCAD），给主板留槽，给按键留孔。
- 23:20Slices it and sends it to the printer over the LAN. Progress shows on the status lamp.切片，局域网发给打印机。打印进度显示在状态灯上。
- 23:31Generates the firmware: two output events (led.set), one input event (button.press). Builds and waits for USB.生成固件：两个下行事件（led.set），一个上行事件（button.press）。编译好，等 USB 插上。
- 23:40Adds a webhook for the CI and a rule: failed → red, passed → green, button → rerun (asks first if it's a release branch).接上 CI 的 webhook，写好规则：失败亮红，成功亮绿，按键重跑（发版分支先问一句）。
- 02:02Print done. Leaves a note: "Plug the board in, I'll flash it."打印完成，留言：“把板子插上，我来烧。”
Saturday morning, Ray drops the board in, snaps the shell shut, plugs in USB. Thirty seconds later the ears glow green.周六早上，阿哲把板子塞进去、扣上外壳、插上 USB。三十秒后，猫耳朵亮起了绿灯。
He hasn't opened his laptop before breakfast since.从那以后，他再也没在早饭前打开过电脑。
A peripheral used to be a product someone else had to ship. Now it's something you ask for on Friday and use on Saturday.过去，一个外设是别人要量产、要上架的产品；现在，它是你周五提出来、周六就能用上的东西。
