This is awesome, well done!

I use Depop and Vinted here in the UK. We also have one called Preloved, which could be problematic.

I also know some vintage clothes sellers and a lot of stock comes from Indonesia. I'm always on the lookout for specific colours and styles of vintage items.

Could you open up your site Internationally somehow? I can already search using English terms. Currency conversion would be relatively easy. The main thing would be shipping. It might only be sensible to collect packages in Indonesia and ship them in bulk to the buyer (so, like Buyee for things from Japan)