I’ve spent years tracking my sleep, diet, and exercise with apps and wearables. But here’s the problem: when an app gets discontinued or stops syncing, the data—and all the insights—disappear.That’s why I’ve adopted a “file over app” philosophy for health tracking. Instead of relying on apps, I save everything in open, accessible formats like Markdown or CSV. These files are local, portable, and universally readable—ensuring my data outlives any app or platform.Here’s how I do it: • Workouts, me...