sudo apt-get install cabal-install
cabal update

$ cabal install clanki
Resolving dependencies...
Downloading safe-0.3.9...
Downloading strict-0.3.2...
Configuring strict-0.3.2...
Configuring safe-0.3.9...
Building safe-0.3.9...
Building strict-0.3.2...
Installed strict-0.3.2
Installed safe-0.3.9
Downloading clanki-1.2.6...
Configuring clanki-1.2.6...
Building clanki-1.2.6...
Installed clanki-1.2.6

$ clanki --list
clanki: command not found