Howl ibasa remupepeti rinovavarira kuve ese ari maviri akareruka uye azere customizable. Iyo yakavakirwa pamusoro peiyo inokurumidza LuaJIT yekumhanyisa nguva, uye inogona kuwedzerwa muLua kana Moonscript. Iyo ine minimalistic UI inofambiswa zvakanyanya nekhibhodi.