Previs is using the travis configuration file to provide your own local service of continous integration.
No more accidental error that trigger a fail build, no more plumbing on your git history.
But more than a local trevis, it provides you a way of testing in a sandboxed environment.
Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.