After a good month of hard work, I'm shutting down the app I was working on.
I have written more about the context and what I've learned on my blog: https://thibpat.com/blog/shutting-down-decisionbee
The main lesson is that I've been building something that address a problem that isn't important for my target customers. I was lucky to find this out during during the first month of operation, thanks to customer interviews.
More than ever I strongly believe in these Y Combinator mantras:
Off to work on the next idea!
Edit (2021-09): I'm experimenting with https://www.indiehackers.com/product/generatebanners-com now!