Ask HN: What do you want the builder to build next?

Post covid, a lot of people are contemplating to build. This thread can be a useful conversation for those who are lost and are not able to figure out what next thing to build.

I have been exploring multiple spaces, if you think a certain area or topic is interesting then you should share here.

Let me start first:

I find the Real world asset based lending in DeFi as an interesting space and can see the space 10Xing from here.