I built a free tool to track my LEGO collection's value — sharing it if anyone's interested

Hey everyone, I'm a LEGO fan and a software developer, and I wanted a simple way to keep track of what my collection is worth — especially to know when sets are retiring soon so I can grab them before prices spike. I tried different apps but I didn't feel like they were doing what I needed, so I built my own over the past few weeks. It's completely free, no ads, no monetization — just a side project I work on in my spare time. Quick recap of what it does: Track your collection and wishlist...