Looks good. But a native application? I would only install a native application if it comes from a source that has a proven trackrecord of being trustworthy.

Can you track how many people installed it, now that it is on HN?

You say it puts everyone on "one single universe with the same content". So it should be easy to put up an instance that provides a web interface to the content, right?

I would think that posting via the browser should also be possible without relying on a single server / authority. A user could hold a private key which they use to sign their posts. And then deliver the post via any server that offers an interface for it. Similar to how a Bitcoin transaction can be delivered via any server that offers such a service.

So it would still be decentralized but can be used via the browser.