The most fine-grained scaling is coming to Fly in a few months.
It’s still a WIP product, but it already powers our remote builders. It lets you decide on the specs and region of every VM.
We’re making progress on this, but it’s not yet done.
If you’d like to try it out, pull the latest flyctl and type fly machine. It’s rough around the edges and you can’t expect too much support for it yet 