Thanks!

I tried entering YC in the fall 2021 batch, and got to the top 10%. I believe my main problem wrt YC is that I currently lack a co-founder, so I did not apply in the Spring as this was still the case.

I am seriously thinking about open source, I believe for instance WebRTC found a good model with dual-licensing, where you have something like AGPL with the option of buying exceptions.

I have had multiple advisors telling me not to though, they fear it would scare away any potential investors ;)