Please read repo wiki article.
It is only possible to create deb and fat jar packages.
#####Install SBT (Scala Build Tool):
For Ubuntu/Debian:
echo "deb https://dl.bintray.com/sbt/debian /" | sudo tee -a /etc/apt/sources.list.d/sbt.list
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 2EE0EA64E40A89B84B2DF73499E82A75642AC823
sudo apt-get update
sudo apt-get install sbt
You can install sbt on Mac OS X using Homebrew.
#####Create package
Clone this repo and execute
sbt packageAll
.deb and .jar packages will be in /package folder. To build testnet packages use
sbt packageAll -D=network=testnet