> it seems i either take them to a shop and get lowballed, or spend hours meticulously researching each card and then figuring out how to sell it for what it’s worth.

Well if you want to use the scanner for something useful, you can run the web version here: https://hanclinto.github.io/CollectorVision/

No install -- scan your cards with your phone or desktop (downloads the weights in WASM -- runs 100% local -- the only web request it makes is to look up card names and prices online -- no image data ever leaves your machine), export the list as CSV, take your cards to your friendly local game store, and expect to receive 50-75% of TCG-low for your cards. This app currently only displays TCG Market, so probably about 50% of this price is what you could realistically expect.

> Hard to sell to individuals like me, but i would think a card marketplace would find it invaluable?

Yes -- and part of this might be that this would have been much more amazing several years ago, but by now -- most marketplaces (I used to do work for some of the big ones) have their own recognition tools. If they aren't actively looking to replace their current software, many companies would rather stick with what's currently working "good enough" than expend effort to migrate to something with only incremental benefit that is difficult to quantify. It's possible that would happen, but it's a tricky sales call to make.

I might just be imagining things, but I'm also picturing what one of those sales calls might look like, and it feels like I've opened the kimono a bit. The cat's out of the bag. There's no mystery or allure behind it anymore, and I feel like that puts me on the back foot somehow -- almost like I've played my strongest cards (hah!) first and have nothing left. By being open-source from the beginning (and talking freely about my architecture and what makes my solution different), there's very little sales-pitch build-up. Maybe it's just a part of the problem of how I'm presenting it, but I think people (especially the big houses) are probably just-as (or more) inclined to silently learn from me and improve their own scanners than try to use / build-upon what I've provided.

It's funny -- that angle is almost more about raising expectations and forcing the big houses to improve their own tech and catch up to open-source, more than getting anyone to adopt my solution in particular.

Am I okay with that? Absolutely -- I made that decision when I open-sourced it. I feel like the tech has been stagnating for several years, and I want to increase the quality of scanners across the board. I want to be the rising tide that lifts all boats.

That's one of the strongest arguments in favor of open-sourcing it (it would be very difficult for a closed-source product to have that same effect), and I remain hopeful for that long-term.