<b_jonas> echo $\'#!/usr/bin/perl\\n\'\'sub k{my$t;$t=~y/IVXLC/XLCDM/,$t.=("",I,II,III,IV,V,VI,VII,VIII,IX)[$_]for/./g;$t}$_=(shift=~/(\\w+)/)[0];print k,$/\' > bin/toroman && chmod a+x bin/toroman

olsner seems to exist at least. He builds all his esolangs in diesel engines.