Ubuntu MATE is pioneering pre-installed snap support by being the first distro to ship a snap by default. For the Ubuntu MATE 17.10 release the
pulsemixer snap, a console based mixer for PulseAudio, will be installed by default.
The daily images of Ubuntu MATE 17.10 are now seeded with the
pulsemixer snap. We encourage you to download the currently daily image, install it and ensure
pulsemixer works correctly.
Pre-installing snaps by default in the desktop images was an outcome of the Ubuntu Rally that took place in New York a couple of weeks ago. Installing the
pulsemixer snap by default in Ubuntu MATE 17.10 is being used as a pilot and what we learn will help the Ubuntu Desktop team with their efforts to ship snaps by default in Ubuntu 18.04.
pulsemixer to the default Ubuntu MATE 17.10 has not significantly affected the size of the iso image. We chose
pulsemixer because it is a small, useful application, that has never been available in the Debian or Ubuntu archives.