I Track My Health Data in Markdown: Lessons in Digital Longevity

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: • W

6mo | Hacker news
Show HN: A simple web game to help learn chords and basic progressions

Hi Hacker News,

I've created Chord Nebula, a simple web-based game designed to help users learn and practice piano chords, basic progressions, and harmony fundamentals. The game integrates with MIDI keyboards, allowing you to play chords in real-time and receive immediate feedback based on the key you choose.

GitHub Repository: https://github.com/yottanami/chord-nebula Live Demo:

6mo | Hacker news

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