The best moat is you.

Study an audience for their pains and worldview and what they buy. Earn their trust through writing and freebies. Then they will want to buy because it's from you specifically.

I can recommend https://30x500.com/

I was going to write a similar comment. Think of it like music; anyone can copy a song but creating a unique song is another story. To be a good artist you need to have a particular vision of the world and be able to express that. The same is true for good software.

Haha, that's a great way to put it. You're right, the best moat is the relationship you build with your audience.

It really feels like we all have to become influencers these days.