Precompiled Ubuntu repositories for Puavo packages are available from archive.opinsys.fi. To
/etc/apt/sources.list.d/opinsys.list:
deb http://archive.opinsys.fi/git-master trusty main restricted universe multiverse
deb-src http://archive.opinsys.fi/git-master trusty main restricted universe multiverse
The repository key is currently available on the repository server itself:
wget -qO - http://archive.opinsys.fi/key | sudo apt-key add -
After adding the apt repo, update the indexes:
sudo apt-get update