Future Contest Suggestions

[Syntax]

Need a cool lua script? Or maybe you just want to watch people struggle. Suggest competition goals and we'll consider it in future competitions.

Note: pure Lua scripts only, no .xbst related ideas.
Disclaimer: contest entries are not optimized for efficiency or safety, such things have to be sacrificed to achieve the shortest code. While all entries must work in order to win, it is not wise to use them in production environments. It's highly suggested to modify and add checks before using them.