A few months ago my girlfriend went down the peptides rabbit hole. GLP-1 first, then a bunch of others whose names I still struggle to spell. She started looking for a tracker and hated everything she found — too clinical, too spreadsheet-y, not something you'd actually want to open every morning.

So I built one, Her own peptides tracker app.

Here's what I picked up along the way.

The real constraint was emotional, not technical

She didn't just want a functional app. She wanted one that felt good to use. "Premium" was the word she used.