There's something oddly satisfying about building a tool that thousands of people might use daily, especially when you decide to do it with zero dependencies. No React, no Vue, no moment. js — just good old-fashioned vanilla JavaScript, HTML, and CSS.
Source: [Dev.to](https://dev.to/ggwork/building-a-countdown-timer-without-external-dependencies-a-vanilla-js-journey-25m7)