可编程计时器：自定义重复锻炼和专注时段的时序安排

来源证据

作者为一个由重复序列组成的健身例行程序构建了可编程计时器，支持声明式符号表达、倒计时、声音提示和语音播报，并可通过 URL 保存分享。

Over the last couple of months, I’ve been building a timer web app for myself that I use for workout and stretching sessions. My main use-case is gym routines that consist of repeatable sequences, e.g. where you are holding certain positions for a set time (rinse and repeat). The app counts down the program, beeps, and reads the activities out loud. Two things (I suppose) are special about it: - The timers are “programmable”, so you can freely express your own routines and procedures in a