Note: This has only been tested built on Ubuntu 14.04 (with Snapcraft 1.1.0), and run on Snappy Ubuntu Core 15.04.
Snapcraft isn't in the archives until Xenial (16.04), so use the snappy-dev/tools PPA:
$ sudo add-apt-repository ppa:snappy-dev/tools
$ sudo apt-get update
$ sudo apt-get install snapcraft
$ git clone https://github.com/kyrofa/fboss-snap.git
$ cd fboss-snap/
$ snapcraft
That will pull any prerequisites and build fboss into a snap.
If you have a Snappy Ubuntu Core 15.04 machine ready, simply scp the new snap to that machine and install it:
$ sudo snappy install fboss_0.1.0_amd64.snap --allow-unauthenticated