No it's not possible and won't be.
It's trivial to run your own webserver, you can do `make serve` inside a checkout of the repo and then open localhost:8080/dev.html (or edit index.html to use local resources).
Or with Python you can run `python -m http.server` to create a local webserver.
The social network of the future: No ads, no corporate surveillance, ethical design, and decentralization! Own your data with Mastodon!