Free Software Song and choir

At 33rd Chaos Communication Congress people met to sing the Free Software Song daily at the booth of Free Software Foundation Europe. This amateur choir singing was controversial with the people at the booths around them but I saw their enthusiasm and decided to write an arrangement for SATB choir with the melody in the tenor voice.
This then got performed as a Lightning Talk at SHA 2017, which also was my first and only attempt at choir conducting.
Warning: it still doesn't sound nice. But we had fun.