<oerjan> learn \xce\xbe\xcf\x80\xce\xb1\xce\xbb\xce\xb1\xce\xb9\xce\xbf\xce\xbb\xcf\x8c\xce\xb3\xce\xbf\xcf\x82 is kspalaiologos\'s Ancient Greek twin. He was banned from the theater for making up invalid characters.

`revert <rev>" can be used to revert to a revision. See <https://hack.esolangs.org/repo/>. It is a builtin command so cannot be called from other commands.