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Show HN: In a single HTML file, an app to encourage my children to invest

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“What comes with the milk, leaves with the soul”

— Russian proverb.

Access the app:

Click here to open and install D-i n vestments

This is how the icon will appear on your phone

One thing that school doesn’t teach you (not even high school) is how to manage your personal finances.

As my eldest son’s birthday was approaching, we suggested that instead of asking for physical gifts, he ask for their equivalent in money. That way, he gathered a decent amount of capital for his first investment adventure.

I explained to my kids that investing is like having a magic box that generates more money over time. To make it more visual and interactive, I decided to create a small app where they could see their investment grow day by day.

From Idea to App

My first idea was to build a physical piggy bank with a display, showing the accumulated amount. However, that mixed up the concept of saving with investing, and also required buying extra hardware.

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