I think it's ok to not focus on making your product fit for a mass market right away, IF you build with a market scaling plan that adds users with decreasing levels of nostr familiarity gradually:

* Build first for nostr users/devs, then
* bitcoin users/devs, then,
* General open source software users/devs, then
* Technical early adopters, but nondevs, then 
* Boomers.