I have a slow(er) internet and many a time it becomes a challenge to rebuild a snap, mostly the time is wasted on setting up a LXD container as it would download the core and snapcraft snaps (I am on 18.04, so host snaps are not pushed to the container).
Wouldn’t it be faster if we had a LXD image with core and snapcraft snaps preinstalled, updated every day and published somewhere so that the build-test cycle becomes quicker ?
Might also make sense to provide some kind of mechanism to keep the container created by “cleanbuild” for further use or at least provide a way to use an already existing LXD container.