New configuration overrides available per-deployment

It's now easier to test out a new framework,
package manager, or other build tool without disrupting the rest of your
project. We've added support for configuration overrides on a per-deployment
basis powered by six new properties for vercel.json.

The six supported settings are:

• framework

• buildCommand

• outputDirectory

• installCommand

• devCommand

• ignoreCommand

Check out the documentation to learn more.