A developer friend of mine told me a few weeks ago he quit his job and is now looking for opportunities, in case I know someone who's hiring. I wasn't planning on hiring a developer before my product has some traction, mainly because I'm bootstrapping the business with my personal savings, but I have a lot of trust in this person, so I decided to take a chance and hire him. However, we decided that he should spend a few weeks on learning about some of the technologies I'm using (Typescript, GraphQL, AWS Lambda, Chrome extension APIs, ...) before he starts.
He started on Feb 25th, and within a few days he was making valuable contributions. Now I feel MUCH more comfortable stepping away from product development sometimes to focus on strategy, sales & marketing, and talking to customers. And I'm much more confident we'll be able to send invitations to our early users before the end of this month.
A few things that helped: