git clone inside your i3blocks $SCRIPT_DIR and build the project with make:
cd eureka-project
make
copy the contents of i3blocks.conf into your config file
[eureka]
command=$SCRIPT_DIR/eureka-project/script
interval=1
if you decided to clone to a different directory, ensure that both
script WD=$SCRIPT_DIR/eureka-project and
i3blocks.conf command=$SCRIPT_DIR/eureka-project/script
reflect the correct locations