tar -xvzf blahaj.tar.gz
cd blahaj/
./configure
make
sudo make install
Now enjoy your Blahaj. (although depending on your system you may need to install dependencies after configuration. Blahaj is dependent on love, kindess, and affection.)
How do you install kindness and affection? They're not on the AUR:
[yetAnotherUser@discuss.tchncs.de ~]$ paru -S kindness affection
:: Resolving dependencies...
error: could not find all required packages:
kindness (target)
affection (target)
I have, somehow, found love packaged though. But it's not true love. It's LÖVE (a 2d game engine) spelled with an ASCII typeset so I'm pretty sure I have installed the wrong dependency.