Thank you! I'd agree with the other commenters that Peter's talk is the best place to go for hearing the in-depth story: https://blog.ycombinator.com/peter-reinhardt-on-finding-prod...

I'd say more generally that finding product-market-fit felt much more like a 'pull' than a 'push' motion. We had been trying for 8 months to convince even a single user to rely on the product we were building earlier, and it just wasn't sticking.

When we launched today's product, we started seeing a lot more pull from customers. We solved one problem that other products did not, which prompted a bunch more requests from customers.