But as others have pointed out, to call it a self-hostable Heroku & Netlify is indeed missing the point. It’s a bit of an oxymoron right?
The benefit of those services is in their CDN network, and the fact that they provide the platform and you don’t have to maintain your own server. Things I do not get with maintaining my own VPS.
Doesn’t mean I’m still not interested in this project, it looks pretty nice! But I would approach the marketing differently.