After exploring an info-product I realised what I needed to build was a full SaaS app. I'd never done that before.
It took a few attempts to find a great co-founder for me, but eventually (on the Indiehackers London slack channel) I found Neil.
Neil was not only experienced in many things I'm not, but a fantastic fit for me in many other ways too. (I'm writing this in early October 2019 and we're still going strong!)