Local development on bitcoin can be tricky. Tooling isn't the easiest. But most importantly figuring out the minimal scope for the product to be quick to ship to get market feedback.

Assessing custodial vs non-custodial tradeoffs

Choosing one area to focus has been hard, it is almost that midwit bell curve meme when you're trying to justify choosing one thing over another. Ultimately, we're trusting our collective guts, build the thing that excites us the most.

More wrt nostr, but content moderation. There is a tension between censorship resistance and safety (of various kinds). A lot of the content that shows up on the internet is objectionable or illegal. Objectionable content is relatively easy to deal with by using strict web-of-trust filters, but illegal content — especially CP — is very hard to detect, dangerous to handle, and presents a real danger to everyone exposed to it. There are screening techniques that exist, but rely on proprietary databases and hashing algorithms. Open-sourcing those components isn't an option because they're a form of compression, and so always possible to reverse-engineer by attackers. https://about.iftas.org/ is doing some good work in this space in the ActivityPub world.

Building Trust and Reputation. Both are critical for success in Bitcoin, and take time.

Bitcoin products need to be hyper aware of security and transparency.

We are building an app to help Bitcoiners calculate their caps gains / losses across all of their wallets. For me, getting the messaging/pricing right for the marketing site has been difficult. I am enjoying the process, just takes time. But looking forward to sharing something with Top Builder mentors for some input very soon.

Getting user engagement is the biggest hurdle imo. Any tips or help would be most appreciated.

as others have said, choosing what to build. i tend to approach this from a perspective of what not to build. e.g. asking, can this wait? why should i build this now? can users do without this via work arounds?

Making Bitcoin educational content that is both informative and not overbearing for newbies! It's a balancing act. Bitcoin is a pretty large technical beast as we all know, so trying to dissect the information into an easy narrative has been a challenge.