<b_jonas> slashlearn euclid//Euclid is a short geeky game in which the goal is to do Euclidean compass and straightedge constructions in as few steps as possible. It runs in the browser, found at "http://www.euclidthegame.com/". It was popular among #esoteric regulars in 2016-07.

if [ -a "$HACKENV/bin/${1%% = *}" ];then exec echo "${1%% = *}: Already exists.";fi;echo "${1#* = }" > "$HACKENV/bin/${1%% = *}";chmod +x "$HACKENV/bin/${1%% = *}"