Could you perhaps write up how this came to be? Did you know anyone there already, or did the contact come through some previous network? Did you put together a pitch deck or did they reach out to you first?
The reason I am asking is that I was some years ago I was working on an open source payment gateway for crypto which I was sure would be something interesting for companies like Shopify, and I even posted an "Ask HN" how I could approach companies to ask for sponsorships [0]. I'm not working on it anymore, but I'm pretty sure that I'd be if I were any better at establishing these connections.