After the pandemic started, we began relying much more heavily on Amazon as our source of goods. So, naturally, this feature piqued my interest -- it started with a simple question, "If I'd just bought Amazon stock instead of [whatever], what's that investment worth now?"
From there, I started slicing and dicing the data in other ways: by category, by item, aggregated over time. Super interesting and eye opening.
Since it's useful for me and our household spending, I open sourced the code, made the functionality available for free. Privacy is super important -- the app runs entirely on the client side -- nothing is shared with anyone under any circumstances.
Nozama is little rough around the edges -- think MVP -- but I'd love to hear your thoughts, ideas for future features.