I kept losing Vinted deals while checking if they were worth buying

I do buy-resell on Vinted on the side. Mostly fashion stuff where the margins can be decent if you know what to look for.

Like a lot of people doing this I use alert bots that ping me when something matching my filters pops up. The bots are fine at finding listings fast. The problem is what happens after.

You get an alert. You see a jacket for 45 euros. Cool, but is that actually a good price? So you right-click the photo, Google Lens it, check what the same thing sold for on eBay and Vestiaire, try to math out whether there's a margin. That takes 30-60 seconds. By then someone else bought it.

I tried just buying blind a few times without checking. Lost money. I tried being faster at the manual check. Still too slow. It's a dumb problem but it was genuinely the bottleneck in the whole workflow.

So I built a thing that runs the price check automatically before the alert fires. You get the notification and the estimated resale value shows up together. Built it on AWS with Celery workers for the scraping, DynamoDB, and WebSocket for the push notifications.

It works. It's at scoutivex.com. But I have no clue if I'm explaining it right to people who haven't lived this specific frustration. I've been saying "Vinted alerts with automatic value verification" which is accurate and also the most boring sentence I've ever written.

For anyone here who does reselling or has built tools around marketplace arbitrage, does this problem even make sense to you? And if the positioning sucks I'd rather hear it now.