Is your feature request related to a problem you're trying to solve? Please describe.
Currently it is not possible to have a consistent version of devbox across users machines, which may result in broken features due to version incompatibility.

Describe the solution you'd like
Add a devbox_version field to devbox.json which will allow to set the required devbox version.
Running devbox with an incompatible version should fail with an informative message on the required version and provide instuctions on how to install it.